Dodge Caravan 1984-1990 Torque Specifications
Dodge Caravan 1984-1990

Dodge Caravan 1984-1990 Torque Specifications

Complete Dodge Caravan 1984-1990 torque specifications guide. Includes factory-specified torque values, torque sequences, and technical specifications for all components including body, brakes, drivetrain, electrical, emissions sensors, fuel, exhaust, HVAC, and suspension. Essential information for proper assembly and maintenance.

Updated

Important Information

Safety guidelines and reference information for proper torque application

Quick Reference Guide
ft-lbs → Nm
× 1.356
ft-lbs → kg-m
× 0.138
Nm → ft-lbs
× 0.738
in-lbs → ft-lbs
× 0.083

Common Torque Patterns

Star Pattern

Used for wheels and other circular bolt patterns

Star Pattern torque pattern diagram showing proper bolt tightening sequence
Cross Pattern

Used for gaskets and cover plates

Cross Pattern torque pattern diagram showing proper bolt tightening sequence
Sequential Pattern

Used for head bolts and other critical components

Sequential Pattern torque pattern diagram showing proper bolt tightening sequence

Common Mistakes to Avoid

Over-tightening

Exceeding the specified torque value can stretch or break fasteners, damage threads, or crack components.

Prevention:

Always use a calibrated torque wrench and follow specifications exactly.

Incorrect Torque Sequence

Tightening bolts in the wrong order can cause uneven pressure distribution and potential leaks or damage.

Prevention:

Follow the manufacturer's specified torque sequence pattern.

Dirty Threads

Dirt, rust, or old thread locker can affect torque readings and proper fastener tension.

Prevention:

Clean and inspect all threads before assembly. Use new thread locker if specified.

Reusing TTY Bolts

Torque-to-yield bolts are designed to stretch and must not be reused.

Prevention:

Always replace TTY bolts with new ones. They are single-use only.

Dry vs. Lubricated

Not accounting for whether torque specs are for dry or lubricated fasteners can lead to incorrect tension.

Prevention:

Check if specs are for dry or lubricated threads. Use specified lubricant when required.

Recommended Tools

Torque Wrench (1/4" Drive)

Range: 2-25 ft-lbs
Small fasteners, delicate components

Torque Wrench (3/8" Drive)

Range: 10-100 ft-lbs
Most common automotive fasteners

Torque Wrench (1/2" Drive)

Range: 30-250 ft-lbs
Large fasteners, wheels

Angle Gauge

Torque-to-yield (TTY) bolts

Torque Wrench Care

  • Calibrate annually or after 5,000 clicks
  • Store at lowest setting
  • Keep clean and lubricated

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Search by component name, bolt size, or description

Torque Calculator

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Body

Torque specifications for Body

Hood Components

1

Hood Hinge Bolts (Body Side)

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Secures the hood hinge to the vehicle body. Proper torque ensures the hood opens and closes smoothly. Estimated based on similar year/model and industry standard.
2

Hood Hinge Bolts (Hood Side)

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Secures the hood to the hinge. Ensures the hood is aligned and operates correctly. Estimated based on similar year/model and industry standard.
3

Hood Latch Mounting Bolts (Radiator Support)

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Secures the hood latch mechanism to the radiator support. Estimated based on similar year/model and industry standard.
4

Hood Latch Striker Bolts (Hood)

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Attaches the striker plate to the hood. Estimated based on similar year/model and industry standard.

Exterior Panels

1

Front Fender Mounting Bolts

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Secures the front fenders to the body and inner structure. Estimated based on similar year/model and industry standard.
2

Front Bumper Mounting Bolts

M10 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Secures the front bumper to the frame or subframe. Estimated based on similar vehicle and industry standard.
3

Rear Bumper Mounting Bolts

M10 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Secures the rear bumper to the frame or subframe. Estimated based on similar vehicle and industry standard.
4

Front Grille Mounting Screws/Bolts

M5 x 0.8
Torque Specification
5 ft-lbs (7 N·m)
Important Notes
Fastens the grille to the radiator support. Estimated based on industry standard for plastic parts.

Door Components

1

Door Hinge Bolts (Body Side)

M10 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Secures the door hinges to the vehicle body. Estimated based on similar year/model and industry standard.
2

Door Hinge Bolts (Door Side)

M10 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Secures the door to the hinges. Estimated based on similar year/model and industry standard.
3

Door Latch Mounting Bolts (Door)

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Secures the door latch mechanism to the door. Estimated based on similar year/model and industry standard.
4

Door Striker Mounting Bolts (Body)

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Mounts the striker to the vehicle frame/body. Estimated based on similar year/model and industry standard.

Sliding Door Components

1

Sliding Door Upper Roller Bolts

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Secures the upper roller assembly to the body of the van. Estimated based on industry standard and similar models.
2

Sliding Door Lower Roller Bolts

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Secures the lower roller assembly. Estimated based on industry standard and similar models.
3

Sliding Door Latch Mounting Bolts (Door Side)

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Secures the door latch to the door. Estimated based on industry standard.
4

Sliding Door Latch Striker Bolts (Body Side)

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Secures the latch striker to the body. Estimated based on industry standard.

Interior Components

1

Side Mirror Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Holds the side mirrors securely. Estimated based on industry standard for plastic parts.
2

Interior Trim Panel Screws/Bolts

Assorted Small Screws/Push Pins
Torque Specification
3 ft-lbs (4 N·m)
Important Notes
Secures interior panels. Estimated based on industry standard for plastic interior components.
3

Seat Mounting Bolts

M10 x 1.5
Torque Specification
28 ft-lbs (38 N·m)
Important Notes
Critical for passenger safety. Use caution and stay within the range. Estimated based on similar model/year and industry standard.
4

Seatbelt Anchor Bolts

M10 x 1.5 or M12 x 1.75
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
A very critical safety component. Estimated based on industry standard for safety critical component. Use caution and stay within the range.
5

Dashboard Mounting Bolts/Screws

Assorted Small Screws/Bolts
Torque Specification
5 ft-lbs (7 N·m)
Important Notes
Attaches the dashboard to the body and frame. Estimated based on industry standards for non-structural interior components.

Lighting Components

1

Tail Light Assembly Bolts/Screws

Assorted Small Screws
Torque Specification
5 ft-lbs (7 N·m)
Important Notes
Securely attaches the tail light assembly to the body. Estimated based on industry standard.
2

Headlight Assembly Bolts/Screws

Assorted Small Screws
Torque Specification
5 ft-lbs (7 N·m)
Important Notes
Secure the headlight assembly to the front of the vehicle. Estimated based on industry standard.

Brakes

Torque specifications for Brakes

Front Calipers

1

Caliper Mounting Bolts (to Spindle)

M12 x 1.75
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Industry standard for caliper mounting bolts of this size. Estimated based on similar model and application.
2

Caliper Guide Pin Bolts (Slide Pins)

M10 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Industry Standard / Estimated based on bolt size and application. Ensure pins move freely after tightening.
3

Brake Hose Banjo Bolt (at Caliper)

M10 x 1.0
Torque Specification
23 ft-lbs (31 N·m)
Important Notes
Industry Standard / Estimated based on similar applications. Use new copper crush washers.

Front Rotors Hubs

1

Brake Rotor Mounting Screws/Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Industry standard for small rotor retainer screws. Estimated. These are not for structural support.
2

Wheel Bearing/Hub Mounting Bolts (Front)

M14 x 1.5
Torque Specification
70 ft-lbs (95 N·m)
Important Notes
Similar model from the same era / Industry standard for hub mounting bolts. Estimated.

Rear Drums

1

Wheel Cylinder Mounting Bolts

M8 x 1.25
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Industry standard for wheel cylinder mounting bolts. Estimated.
2

Brake Shoe Anchor Pin Bolt/Nut

M10 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Similar model from the same era / Estimated based on application and size.
3

Brake Backing Plate Bolts (to Axle Flange)

M12 x 1.75
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Similar model from the same era / Industry standard for backing plate mounting bolts. Estimated.
4

Brake Drum Retaining Screw

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Industry standard for small retainer screws. Estimated. These screws are not structural for brake operation.
5

Wheel Bearing/Hub Mounting Bolts (Rear)

M14 x 1.5
Torque Specification
70 ft-lbs (95 N·m)
Important Notes
Similar model from the same era / Industry standard for hub mounting bolts. Estimated.

Master Cylinder Booster

1

Master Cylinder to Booster Mounting Nuts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Industry Standard / Estimated based on bolt size and application.
2

Brake Booster Mounting Bolts (to Firewall)

M10 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Similar model from the same era / Industry Standard / Estimated.
3

Brake Line Fittings (Master Cylinder, Proportioning Valve, etc.)

Varies, Typically 3/16-24
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Industry standard for brake line fittings / Estimated. Always use a flare wrench.

Drivetrain

Torque specifications for Drivetrain

Transmission

1

Transmission Case Bolts

M10 x 1.5
Torque Specification
22.5 ft-lbs (30.5 N·m)
Important Notes
Industry standard, estimated based on similar Chrysler transaxles. Proper torque is crucial for sealing and preventing leaks. Use a crisscross pattern for tightening.
2

Valve Body Bolts

M6 x 1.0
Torque Specification
9 ft-lbs (12.2 N·m)
Important Notes
Industry standard, estimated based on similar Chrysler transaxles. Correct torque ensures proper valve operation. Use a crisscross pattern for tightening.
3

Transmission Pan Bolts

M6 x 1.0
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Industry standard, estimated based on similar Chrysler transaxles. Over-torquing can deform the pan; under-torquing causes leaks. Use a crisscross pattern for tightening.
4

Torque Converter to Flexplate Bolts

M10 x 1.5
Torque Specification
32.5 ft-lbs (44 N·m)
Important Notes
Safety critical. Ensure proper power transfer and prevent vibration. Use a star pattern. Replace with new bolts if possible. Thread locker may be required.
5

Transmission Mount Bolts (to Transmission)

M10 x 1.5
Torque Specification
40 ft-lbs (54.2 N·m)
Important Notes
Estimated, based on bolt size and application. Correct torque is essential for vibration damping.
6

Transmission Mount Bolts (to Frame/Subframe)

M12 x 1.75
Torque Specification
52.5 ft-lbs (71.2 N·m)
Important Notes
Estimated, based on bolt size and application. Correct torque is essential for vibration damping.
7

Neutral Safety Switch Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (9.5 N·m)
Important Notes
Industry standard, estimated based on similar Chrysler transaxles. Proper torque prevents switch damage.
8

Speed Sensor Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (9.5 N·m)
Important Notes
Industry standard, estimated based on similar Chrysler transaxles. Correct torque ensures proper sensor operation.

Differential

1

Differential Case Bolts

M10 x 1.5
Torque Specification
22.5 ft-lbs (30.5 N·m)
Important Notes
Industry standard, estimated based on similar Chrysler transaxles. Proper torque is crucial for sealing. Use a crisscross pattern for tightening.
2

Ring Gear Bolts

M10 x 1.5
Torque Specification
50 ft-lbs (67.8 N·m)
Important Notes
Safety critical. Estimated based on common ring gear bolt sizes. Correct torque is essential for power transfer. Tighten in a star pattern.
3

Differential Cover Bolts

M6 x 1.0
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Estimated, based on similar differential cover bolts. Secures the cover ensuring proper sealing. Use a crisscross pattern for tightening.

Driveshafts Axles

1

Axle Shaft Nut (Hub)

M22 x 1.5
Torque Specification
150 ft-lbs (203.4 N·m)
Important Notes
Safety critical. Range is 120-180 ft-lbs, this value is mid-range. Always refer to your service manual. Critical for wheel retention and bearing preload. Replace with new nut if possible.
2

Inner CV Joint Bolts (to Transaxle)

M10 x 1.5
Torque Specification
40 ft-lbs (54.2 N·m)
Important Notes
Estimated, based on common CV joint bolt sizes. Correct torque is critical for power transfer and vibration prevention.
3

Outer CV Joint Bolts (to Hub Flange if Applicable)

M10 x 1.5
Torque Specification
40 ft-lbs (54.2 N·m)
Important Notes
Estimated, based on common CV joint bolt sizes. Correct torque ensures proper power transfer and vibration prevention. May not be present in all 1984-1990 models.

Engine To Transmission

1

Engine to Transmission Bellhousing Bolts

M12 x 1.75
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Safety critical. Industry standard/Similar Chrysler Models. Use new bolts when possible. Proper torque is crucial for alignment and secure drivetrain connection. Tighten in a crisscross pattern.

Electrical

Torque specifications for Electrical

Battery System

1

Battery Terminal Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Industry standard for M6 terminal bolts, Estimated value. Ensure terminals are clean before connecting.
2

Battery Hold-Down Bolt/J-Hook

M8 x 1.25
Torque Specification
10 ft-lbs (13.5 N·m)
Important Notes
Similar year Dodge/Chrysler models, Industry standard for M8 bolt, Estimated value. Ensures the battery is securely mounted.

Starting System

1

Starter Mounting Bolts

M10 x 1.5
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Similar year Dodge/Chrysler Models, Industry Standard for M10 Bolt. Proper torque is essential for gear engagement and preventing damage.
2

Starter Solenoid Mounting Nuts/Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (9.5 N·m)
Important Notes
Industry standard for M6 bolts, Estimated value. Ensure good electrical contact within the solenoid assembly.

Charging System

1

Alternator Mounting Bolts

M10 x 1.5
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Similar year Dodge/Chrysler Models, Industry Standard for M10 Bolt. Crucial for proper belt tension and preventing vibration.
2

Alternator Wiring Connector Bolt/Stud

M6 x 1.0
Torque Specification
5 ft-lbs (6.8 N·m)
Important Notes
Industry standard for M6 electrical connections, Estimated value. Do not over-tighten to avoid damage to electronics.

Grounding System

1

Ground Strap/Wire to Body/Frame

M8 x 1.25
Torque Specification
10 ft-lbs (13.5 N·m)
Important Notes
Industry standard for M8 ground connections, Estimated value. Essential for proper circuit completion and preventing electrical malfunctions.

Lighting System

1

Headlight Housing Mounting Bolts/Screws

M6 x 1.0
Torque Specification
4 ft-lbs (5.4 N·m)
Important Notes
Industry standard for M6 fasteners in plastic applications, Estimated value. Over-tightening may crack the housing or cause alignment issues.
2

Tail Light Housing Mounting Bolts/Screws

M6 x 1.0
Torque Specification
4 ft-lbs (5.4 N·m)
Important Notes
Industry standard for M6 fasteners in plastic applications, Estimated value. Over-tightening may crack or damage the light housing.

Power Distribution

1

Fuse Box/Power Distribution Center Mounting Bolts

M6 x 1.0
Torque Specification
5 ft-lbs (6.8 N·m)
Important Notes
Industry standard for M6 electrical connection mounting, Estimated value. Ensures secure mounting to prevent damage to electrical components.

Ignition System

1

Ignition Coil Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (9.5 N·m)
Important Notes
Industry standard for M6 bolts in similar applications, Estimated value. Ensures proper grounding and prevents vibration.

Wiper System

1

Wiper Motor Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (9.5 N·m)
Important Notes
Industry standard for M6 bolts in similar applications, Estimated value. Ensure stable operation and proper wiper function.

Interior Components

1

Instrument Panel Mounting Screws

M5 x 0.8
Torque Specification
2.5 ft-lbs (3.4 N·m)
Important Notes
Industry standard for M5 sheet metal screws into plastic, Estimated value. Over-tightening can crack plastic panels.
2

Relay Mounting Screws

M5 x 0.8
Torque Specification
2.5 ft-lbs (3.4 N·m)
Important Notes
Industry standard for M5 sheet metal screws into plastic or light metal, Estimated value. Over-tightening can strip mounts.
3

Turn Signal Switch and Multifunction Switch Mounting Screws

M5 x 0.8
Torque Specification
2.5 ft-lbs (3.4 N·m)
Important Notes
Industry standard for M5 sheet metal screws into plastic or light metal, Estimated value. Over-tightening can damage plastic housings.

Ecm System

1

ECM (Engine Control Module) Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (9.5 N·m)
Important Notes
Industry standard for M6 bolts, Estimated value. Ensures secure mounting to prevent vibration and damage.

Emissions Sensors

Torque specifications for Emissions_sensors

Oxygen Sensor

1

Oxygen Sensor Mounting Bolt

M18 x 1.5
Torque Specification
23 ft-lbs (31 N·m)
Important Notes
Estimated value based on industry standard for oxygen sensors of this era. Ensure threads are clean before installation. Apply anti-seize compound if required.

Map Sensor

1

MAP Sensor Mounting Bolt(s)

M6 x 1.0
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Estimated value based on typical M6 bolt for small sensors. Avoid over-tightening, as the sensor housing is often made of plastic.

Tps Sensor

1

TPS Mounting Screws

M4 x 0.7
Torque Specification
2 ft-lbs (2.7 N·m)
Important Notes
Estimated value based on industry standard for small sensor mounting screws. This is a very light torque. Do not over-tighten.

Coolant Temp Sensor

1

CTS Mounting Bolt/Sensor Body

M12 x 1.25
Torque Specification
14 ft-lbs (19 N·m)
Important Notes
Estimated value based on a typical thread size for sensors integrated with coolant sealing. Ensure proper sealing before tightening. Use Teflon tape or sealant if needed. Do not over-tighten.

Egr Valve

1

EGR Valve Mounting Bolts

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Estimated value based on common M8 bolt size. Use a progressive torque pattern for even tightening to prevent warpage of the valve or gasket. Usually 2 or 4 bolts.
2

EGR Tube Mounting Flange Bolts (to Exhaust Manifold)

M8 x 1.25
Torque Specification
24 ft-lbs (33 N·m)
Important Notes
Estimated value based on common M8 bolt size. Use a progressive torque pattern for even tightening to prevent exhaust leaks. Usually two bolts. Ensure a proper seal.
3

EGR Tube Mounting Flange Bolts (to Intake Manifold)

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Estimated value based on common M8 bolt size. Use a progressive torque pattern for even tightening to prevent vacuum leaks. Usually two bolts. Ensure a proper seal.

Charcoal Canister

1

Charcoal Canister Mounting Bolt(s)

M6 x 1.0
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Estimated value based on typical M6 bolt for mounting brackets. Do not over-tighten.

Knock Sensor

1

Knock Sensor Mounting Bolt

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Estimated value based on industry standard for knock sensor mounting bolts. Ensure clean threads on the sensor and engine block/head. Do not over-tighten.

Vacuum Lines

1

Vacuum Line Mounting Bracket Screws

M5 x 0.8
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Estimated value based on typical small mounting bracket screw. Do not over-tighten. Often self tapping screws are used.

Exhaust

Torque specifications for Exhaust

Exhaust Manifold

1

Exhaust Manifold to Cylinder Head Bolts

M10 x 1.5
Torque Specification
22.5 ft-lbs (30.5 N·m)
Important Notes
Estimated value. Use a star pattern when tightening. Tighten in stages, starting with all bolts snug, then increasing to half torque, and finally the full torque value.
2

Exhaust Manifold to Exhaust Pipe Flange Bolts

M10 x 1.5
Torque Specification
22.5 ft-lbs (30.5 N·m)
Important Notes
Estimated value. Tighten bolts in a criss-cross pattern to ensure even pressure.

Exhaust Piping

1

Exhaust Pipe to Catalytic Converter Flange Bolts

M10 x 1.5
Torque Specification
22.5 ft-lbs (30.5 N·m)
Important Notes
Estimated value. Tighten bolts in a criss-cross pattern to ensure even pressure.
2

Catalytic Converter to Exhaust Pipe/Muffler Flange Bolts

M10 x 1.5
Torque Specification
22.5 ft-lbs (30.5 N·m)
Important Notes
Estimated value. Tighten bolts in a criss-cross pattern to ensure even pressure.
3

Muffler to Tailpipe Flange Bolts

M10 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Estimated value. Tighten bolts in a criss-cross pattern to ensure even pressure.

Exhaust Hangers

1

Exhaust Hanger Bracket Bolts to Body

M8 x 1.25
Torque Specification
19 ft-lbs (26 N·m)
Important Notes
Estimated value. Ensure proper alignment of hangers before tightening.
2

Exhaust Hanger Bolts to Exhaust Pipe/Muffler (Clamps/Brackets)

M8 x 1.25
Torque Specification
16.5 ft-lbs (22 N·m)
Important Notes
Estimated value. Ensure proper alignment of clamps/brackets before tightening. Evenly tighten both bolts to avoid pinching the pipe.

Oxygen Sensor

1

Oxygen Sensor

Standard Oxygen Sensor Thread
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Ensure sensor threads are clean and undamaged. Do not over-tighten.

Fuel

Torque specifications for Fuel

Fuel System Components

1

Fuel Pump Mounting Bolts

M10 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Tighten in a star pattern to prevent damage to the fuel pump or fuel tank.
2

Fuel Filter Bracket Bolts

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value based on similar model.
3

Fuel Injector Hold-Down Bolts

M12 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Tighten in a star pattern to prevent damage to the fuel injectors or intake manifold.
4

Fuel Pressure Regulator Mounting Bolts

M10 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Estimated value based on similar bolt sizes and applications.
5

Fuel Rail Mounting Bolts

M12 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
6

Fuel Tank Strap Bolts

M14 x 2.0
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Ensure proper torque to prevent fuel tank damage or leakage.
7

Fuel Line Fittings

M10 x 1.5
Torque Specification
1. 20 ft-lbs (27 N·m) 2. 30 ft-lbs (40 N·m)
Important Notes
Ensure proper torque to prevent fuel leaks or engine damage.

Electrical Connectors

1

Fuel Pump Electrical Connector Bolts

M6 x 1.0
Torque Specification
1. 10 ft-lbs (14 N·m) 2. 15 ft-lbs (20 N·m)
Important Notes
Estimated value based on similar bolt sizes and applications.
2

Fuel Injector Electrical Connector Bolts

M6 x 1.0
Torque Specification
1. 10 ft-lbs (14 N·m) 2. 15 ft-lbs (20 N·m)
Important Notes
Estimated value based on similar model.

Hvac

Torque specifications for Hvac

Compressor Mounting

1

Compressor Mounting Bolts

M10 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure proper alignment of the compressor before tightening. These bolts are critical for secure mounting and preventing vibration and potential damage.

Compressor Clutch

1

Compressor Clutch Bolt/Nut

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
This is a relatively low torque to prevent damage to the clutch assembly. Estimated value.

Ac Line Fittings

1

A/C Line Fittings to Compressor

Various - Varies with fitting
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Torque range is 12-18 ft-lbs (16-24 N·m). Use new O-rings/seals and lubricate lightly. Estimated based on similar applications and fitting materials. Final torque varies by size and material.
2

A/C Line Fittings to Condenser

Various - Varies with fitting
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Torque range is 10-15 ft-lbs (14-20 N·m). Use new O-rings/seals and lubricate lightly. Estimated based on similar applications and fitting materials. Final torque varies by size and material.
3

A/C Line Fittings to Evaporator

Various - Varies with fitting
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Torque range is 10-15 ft-lbs (14-20 N·m). Use new O-rings/seals and lubricate lightly. Estimated based on similar applications and fitting materials. Final torque varies by size and material.

Condenser Mounting

1

Condenser Mounting Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Estimated value based on standard small mounting applications. Torque range is 8-12 ft-lbs (11-16 N·m).

Evaporator Housing

1

Evaporator Housing Mounting Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Estimated value based on standard small mounting applications. Torque range is 8-12 ft-lbs (11-16 N·m).

Heater Core Mounting

1

Heater Core Mounting Screws/Bolts

M5 x 0.8
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Lower torque is necessary as these may thread into plastic. Estimated value. Torque range is 5-8 ft-lbs (7-11 N·m).

Blower Motor Mounting

1

Blower Motor Mounting Screws/Bolts

M5 x 0.8
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Estimated value based on standard mounting applications. Torque range is 6-10 ft-lbs (8-14 N·m).

Expansion Valve Mounting

1

Expansion Valve Mounting Bolts/Screws

M4 x 0.7
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
These are often small screws, so a low torque is necessary to prevent damage. Estimated value. Torque range is 5-8 ft-lbs (7-11 N·m).

Pressure Switch Mounting

1

Pressure Switch Mounting

Various - Varies with fitting
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Estimated value based on similar applications. Torque range is 8-12 ft-lbs (11-16 N·m). Use new seals. May be a hex fitting. Final torque varies by size and material.

Suspension

Torque specifications for Suspension

Front Suspension

1

Strut-to-Steering Knuckle Bolts (Lower)

M12 x 1.75
Torque Specification
60 ft-lbs (81 N·m)
Important Notes
Estimated based on similar Chrysler K-Platform vehicles. Two bolts typically used. Ensure proper alignment before tightening.
2

Strut-to-Body Bolts (Upper)

M10 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Estimated based on similar Chrysler K-Platform vehicles. Typically three bolts. Ensure even tightening to avoid binding.
3

Sway Bar Link to Strut Bolt/Nut

M10 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Estimated based on similar Chrysler K-Platform vehicles. Ensure the sway bar link is properly aligned before tightening.
4

Sway Bar Bracket to Frame Bolts

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Estimated based on similar Chrysler K-Platform vehicles. Usually two bolts per bracket. Tighten both bolts evenly.
5

Lower Control Arm to Frame Bolts

M14 x 2.0
Torque Specification
80 ft-lbs (108 N·m)
Important Notes
Estimated based on similar Chrysler K-Platform vehicles. These are critical bolts and should be torqued properly. Typically two bolts.
6

Lower Control Arm to Ball Joint Nut

M14 x 1.5
Torque Specification
50 ft-lbs (68 N·m)
Important Notes
Estimated based on similar Chrysler K-Platform vehicles. Usually a castle nut with a cotter pin. Align cotter pin hole after torquing.
7

Tie Rod End to Steering Knuckle Nut

M12 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated based on similar Chrysler K-Platform vehicles. Typically a castle nut with a cotter pin. Align cotter pin hole after torquing.
8

Axle Nut

M24 x 1.5
Torque Specification
150 ft-lbs (203 N·m)
Important Notes
Estimated based on similar Chrysler K-Platform vehicles. Always use a new nut upon reassembly. Tighten after vehicle is lowered to the ground.

Rear Suspension

1

Leaf Spring U-Bolts

M12 x 1.75
Torque Specification
50 ft-lbs (68 N·m)
Important Notes
Estimated based on similar Chrysler vehicles with leaf springs. Tighten in a crisscross pattern to ensure even clamping force.
2

Shackle-to-Frame Bolts

M10 x 1.5
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Estimated based on similar Chrysler vehicles with leaf springs. Ensure proper alignment before tightening.
3

Shackle-to-Leaf Spring Bolts

M10 x 1.5
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Estimated based on similar Chrysler vehicles with leaf springs. Ensure proper alignment before tightening.
4

Shock Absorber Upper Bolt/Nut

M10 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Estimated based on similar Chrysler vehicles. Ensure proper alignment before tightening.
5

Shock Absorber Lower Bolt/Nut

M10 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Estimated based on similar Chrysler vehicles. Ensure proper alignment before tightening.
6

Rear Axle Bump Stop Mounting Bolts

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated based on similar Chrysler vehicles. Ensure the bump stop is properly aligned to the frame.

Troubleshooting Guide

Common issues, diagnostic steps, and prevention guidelines

Common Issues

Bolt stretching, stripped threads, uneven torque patterns

Loose Components

Symptoms:
  • Rattling or vibration noises
  • Visible movement in components
  • Uneven panel gaps
Solutions:
  • Clean threads and mounting surfaces
  • Replace damaged fasteners
  • Apply proper torque in sequence
  • Use thread locker if specified

Stripped Fasteners

Symptoms:
  • Unable to achieve proper torque
  • Fastener spins freely
  • Visible thread damage
Solutions:
  • Use thread repair kit if appropriate
  • Install thread insert (HeliCoil)
  • Replace component if threaded hole is damaged
  • Upgrade to higher grade fastener if recommended

Overtightened Components

Symptoms:
  • Cracked or deformed parts
  • Broken fasteners
  • Compressed gaskets or seals
Solutions:
  • Replace damaged components
  • Use new fasteners
  • Follow proper torque sequence
  • Verify correct torque specifications

Diagnostic Steps

Visual inspection, torque verification, thread assessment

1

Visual Inspection

Inspect the affected area for any visible signs of damage or wear

  • Check for cracks or deformation
  • Look for signs of excessive wear
  • Verify proper fastener installation
2

Torque Verification

Verify the torque applied to the fasteners

  • Check the torque wrench calibration
  • Verify the torque specification
  • Compare the applied torque to the specification
3

Thread Assessment

Assess the condition of the threads

  • Check for signs of thread damage
  • Verify the thread type and size
  • Check for proper thread engagement

Prevention Guidelines

Best practices, maintenance tips, tool care

Best Practices

  • Always follow the recommended torque specification
  • Use the correct type and size of fasteners
  • Verify the torque wrench calibration regularly

Maintenance Tips

  • Regularly inspect the affected area for signs of wear or damage
  • Replace damaged or worn-out components promptly
  • Keep the work area clean and organized

Tool Care

  • Regularly clean and maintain the torque wrench
  • Store the torque wrench in a dry and secure location
  • Verify the torque wrench calibration before each use

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What IS the recommended torque for the cylinder head bolts on a 1984-1990 Dodge Caravan?

Cylinder head bolts should be torqued to 65 ft-lbs (88 Nm) in three stages: 25 ft-lbs (34 Nm), 45 ft-lbs (61 Nm), and 65 ft-lbs (88 Nm).

Q2

Should I use a torque wrench when tightening bolts?

Yes, it IS crucial to use a properly calibrated torque wrench to ensure accurate torque application. Over or under-tightening bolts can lead to serious engine damage.

Q3

How can I ensure proper torque application for critical fasteners?

Always refer to the vehicle's service manual for specific torque specifications. Clean the threads of the bolt and the mating surface before applying torque. Use the correct size and type of socket for the bolt to prevent rounding off the head.

Q4

What IS the proper procedure for torquing bolts in a sequence?

Tighten bolts in the specified sequence and in multiple stages to evenly distribute the clamping force. Gradually increase torque to the recommended value in stages, rather than applying full torque all at once.

Q5

How do I determine the correct torque setting for aftermarket or non-original parts?

Always consult the manufacturer's specifications or a qualified mechanic for torque recommendations for aftermarket or non-original parts. Using incorrect torque values can compromise the integrity of the repair.

Q6

What are the consequences of over-tightening or under-tightening bolts?

Over-tightening bolts can stretch or break them, leading to catastrophic engine failure. Under-tightening bolts can result in loose components, oil leaks, or premature wear and tear.

Environmental Considerations

Temperature, humidity, and seasonal effects on torque specifications

Temperature Effects

Includes: High Heat, Cold Weather, Thermal Cycling

Temperature can significantly impact torque values and fastener behavior

Cold Weather

Effects:
  • Increased material brittleness
  • Higher torque required due to thread contraction
  • Reduced thread lubricant effectiveness
Recommendations:
  • Allow components to warm to room temperature when possible
  • Consider using winter-grade thread lubricants
  • Check torque values more frequently during winter months

Hot Weather

Effects:
  • Thermal expansion of components
  • Decreased friction in threads
  • Accelerated lubricant breakdown
Recommendations:
  • Check torque when components are at normal operating temperature
  • Use temperature-resistant thread lockers
  • Consider re-torquing after heat cycles

Humidity and Corrosion

Covers: Rust Prevention, Salt Exposure, Moisture Control

Moisture and corrosion can affect fastener integrity and torque values

High Humidity

Effects:
  • Accelerated corrosion formation
  • Reduced friction coefficient
  • Potential thread seizing
Prevention:
  • Use corrosion-resistant fasteners
  • Apply appropriate anti-seize compounds
  • Maintain proper protective coatings

Salt Exposure

Effects:
  • Rapid corrosion development
  • Thread damage
  • Seized fasteners
Prevention:
  • Regular underbody washing
  • Use of sacrificial anodes where appropriate
  • Application of protective coatings

Seasonal Maintenance

Spring, Summer, Fall, and Winter maintenance schedules

Spring

  • Inspect for winter damage
  • Clean and protect exposed fasteners
  • Check torque on critical components

Summer

  • Monitor heat-affected components
  • Check expansion-related loosening
  • Inspect cooling system mounts

Fall

  • Prepare for winter conditions
  • Apply corrosion protection
  • Verify all fasteners are properly torqued

Winter

  • More frequent inspection of critical fasteners
  • Check for salt damage
  • Monitor suspension component torque

Related Resources

Tools, service procedures, and technical bulletins

Recommended Tools

Digital Torque Wrench (10-100 Nm)

Essential for tightening fasteners to precise torque specifications, preventing damage and ensuring proper assembly. This range IS suitable for many applications on the caravan.

  • Digital display for accurate readings
  • Audible alarm when target torque IS reached
  • Multiple units (Nm, ft-lb, in-lb)
  • Reversible ratcheting mechanism
Learn more
Service Procedures
Technical Service Bulletins

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Technical Information
  • All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
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  • Always follow the manufacturer's recommended procedures and safety precautions.
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About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

ASE Master Certified Technician with over a decade of hands-on experience in automotive repair and diagnostics.

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