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1990 Jeep Comanche CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Jeep REPAIR SHOPS DON'T WANT YOU TO KNOW
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- Component Locations
- Wiring Diagrams
- Technical Service Bulletins
- Specifications
- A/C & Heater Service
- Brake Service
- Fuel Filter Replacement
- Driveline, U-Joint & CV Axles Replacement
- Starter & Alternator Replacement
- Maintenance Lamp Reset
- Radiator & Hose Replacement
- Serpentine Belt Service
A/C & HEATER SERVICE PROCEDURES FOR 1990 Jeep Comanche AUTOMOBILES
A/C & Cooling System Maintenance -> DaimlerChrysler Corp. -> Jeep
Vehicle: 1990 Jeep Comanche 4.0 L6 GAS
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BRAKE SERVICE PROCEDURES FOR 1990 Jeep Comanche AUTOMOBILES
DISC BRAKES, CHRYSLER CORP. -> Type 7-Single Piston Sliding Caliper, Jeep -> CALIPER SERVICE -> ASSEMBLE -> CJ-7, Cherokee, Comanche, Scrambler, Wagoneer & Wrangler -> DISASSEMBLE -> Grand Wagoneer & J-Series Truck -> INSTALLATION -> REMOVAL
Vehicle: 1990 Jeep Comanche Pioneer 4.0 L6 GAS
REMOVAL
Grand Wagoneer & J-Series Truck
- Drain and discard 2/3 of brake fluid from master cylinder front reservoir.
- Raise and support vehicle.
- Remove front wheel and tire assemblies.
- Press caliper piston to bottom of bore using suitable screwdriver or C-clamp.
- Remove caliper mounting bolts.
- Remove caliper by lifting upward and out of shield and support.
- Disconnect brake hose at caliper.
CJ-7, Cherokee, Comanche, Scrambler, Wagoneer & Wrangler
- Remove and discard 2/3 of brake fluid from largest master cylinder reservoir.
- Raise and support vehicle.
- Remove front wheel and tire assemblies.
- Press c...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1990 Jeep Comanche AUTOMOBILES
DaimlerChrysler Corp./Jeep Light Trucks, SUVs & Vans -> Component Locations -> 1987-93 Cherokee, Comanche & Wagoneer
Vehicle: 1990 Jeep Comanche Pioneer 4.0 L6 GAS
R...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1990 Jeep Comanche AUTOMOBILES
DRIVESHAFT, Replace -> Front -> Rear
Vehicle: 1990 Jeep Comanche Pioneer 2.5 L4 GAS
Front
- Hoist and support vehicle on safety stands.
- Scribe alignment marks on yokes at transfer case. Place marks at pinion shaft and at each end of propeller shaft. These marks will be used for installation reference.
- Remove universal joint strap bolts at pinion shaft yoke.
- Disconnect propeller shaft at transfer case and remove propeller shaft.
- Reverse procedure to install, noting the following:
- Torque universal joint strap/clamp bolts at axle yoke to 14 ft. lbs.
- Torque flange to transfer case bolts to 20 ft. lbs.
Rear
- Shif...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1990 Jeep Comanche AUTOMOBILES
Starter, Replace
Vehicle: 1990 Jeep Comanche 2.5 L4 GAS
- Disconnect battery ground cable.
- Remove starter to flywheel housing and rear bracket to engine or transaxle attaching bolts.
- Remove heat shield clamp and heat shield, if required.
- Disconnect starter cable a...
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MAINTENANCE LAMP RESET PROCEDURES FOR 1990 Jeep Comanche AUTOMOBILES
Chrysler LLC Trucks -> Traction Control System Warning Lamp ->
Vehicle: 1990 Jeep Comanche 2.5 L4 GAS
This lamp should light for a approximately 6-8 seconds when the ignition is turned On as a bulb check. If the warni...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1990 Jeep Comanche AUTOMOBILES
Coolant Hose, Replace -> Lower -> Upper
Vehicle: 1990 Jeep Comanche Pioneer 2.5 L4 GAS
Lower
- Drain cooling system into a suitable container.
- Reposition hose clamp at radiator outlet and remove hose.
- Reposition hose clamp at water pump and remove hose.
- Remove hose from vehicle.
- Reverse procedure to install.
Upper
- Drain cooling system into a s...
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SERPENTINE BELT SERVICE PROCEDURES FOR 1990 Jeep Comanche AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 1990 Jeep Comanche 2.5 L4 GAS
- Disconnect battery ground cable.
- Loosen power steering pump rear mounting bolts, piv...
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COMPONENT LOCATION DIAGRAMS FOR 1990 Jeep Comanche AUTOMOBILES
Component location diagrams for most 1990 Jeep Comanche cars and light trucks sold in the U.S. from 1990+.
Engine Compartment Components Diagram for 1990 Jeep Comanche Eliminator 4.0 L6 GAS Components on diagram: |
RH Of Side I/P & Fuse Panel Components Diagram for 1990 Jeep Comanche 4.0 L6 GAS Components on diagram: |
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WIRING DIAGRAMS FOR 1990 Jeep Comanche AUTOMOBILES
OEM drawn wiring diagrams for most 1990 Jeep Comanche cars and light trucks sold in the U.S.
1990 Jeep Comanche 2.5 L4 GAS Wiring Diagram Components on diagram: |
1990 Jeep Comanche Pioneer 4.0 L6 GAS Wiring Diagram Components on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 1990 Jeep Comanche AUTOMOBILES
OEM TSB listings for most 1990 Jeep Comanche cars and light trucks sold in the U.S. from 1985+.
Document: WINDSHIELD WIPER BLADE / ELEMENT MAINTENANCE Vehicle: 1990 Jeep Comanche 2.5 L4 GAS Auto Systems: |
Document: AUTOMATIC TRANSMISSION FLUID USAGE - ATF+4 (TYPE 9602) - REVISED Vehicle: 1990 Jeep Comanche 2.5 L4 GAS Symptoms: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1990 Jeep Comanche AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1990 Jeep Comanche cars and light trucks sold in the U.S. and Canada from 1970+.
- Brake caliper mounting bolt torque
- Brake drum runout, machining, & discard specs
- Minimum brake lining thickness.
- Brake rotor runout, parallelism, machining, discard, & finish specs
A/C SYSTEM SPECIFICATIONS: Air conditioning refrigerant capacity and type as well as lubricant capacity for most 1990 Jeep Comanche cars and light trucks sold in the U.S. and Canada from 1980+.
- Refrigerant capacity & type, compressor oil viscosity, total system oil capacity & compressor clutch gap
COOLING SYSTEM BLEED: Cooling system bleeder valve identification, bleeder type and bleed procedures for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1986+.
PREVENTIVE MAINTENANCE: Preventive maintenance recommendations and required services for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1980+. Includes severe and routine service schedules
QUICK-LUBE and ILLUSTRATIONS: Fluid recommendations, capacities, drain plug torques, tire data, and severe service recommended preventive maintenance schedules. Information covers most 1990 Jeep Comanche cars and light trucks sold in the U.S. and Canada from 1980+. Engine and chassis service images.
- Automatic transmission/transaxles capacities, lubricant recommendations
- Differential/final drive capacities, lube recommendations, grades, & viscosities
- Final drive fill & drain plug torques
- Number of lubrication fittings & plugs
- Power steering, brake, & clutch fluid recommendations
- Manual transmission/transaxle capacities, lube recommendations, grades, & viscosities
- Number of lubrication fittings & plugs
- Power steering, brake, & clutch fluid recommendations
- Engine oil capacities, API grade recommendations, SAE viscosity recommendations, drain plug torque
- Severe service maintenance & interval recommendations
- Tire sizes, wheel nut/bolt torque, pressures & rim sizes
- Transfer case capacities, lube recommendations, grades, & viscosities
TUNE-UP & DRIVEABILITY SPECIFICATIONS: Most tune-up specifications for most 1990 Jeep Comanche cars and light trucks sold in the U.S. and Canada from 1980+
- Airflow sensor electrical specifications
- Tensioning specifications for systems with automatic tensioners
- Barometric pressure sensor specs
- Battery group number and cranking performance
- Crankshaft & camshaft position sensor resistance
- Engine compression pressures
- Coolant temperature sensor specs
- Computer advance.
- Diesel fuel temperature sensor resistance.
- Distributor advance specifications
- Ignition pickup coil resistance
- Exhaust gas recirculation temperature sensor resistance
- Engine fastener torque values
- Firing order diagrams
- Fuel system pressures
- Generator (alternator) specs
- Intake air temperature sensor specs
- Ignition coil specifications
- Fuel injector resistance
- Engine idle speeds
- Knock sensor resistance
- Manifold absolute pressure sensor specs
- Mixture control solenoid resistance
- Voltage regulator specs
- Spark plug applications & gaps
- Starter motor electrical specs.
- Tensioning specifications for systems without automatic tensioners
- Throttle body temperature sensor resistance
- Ignition timing in degrees at rpm
- Transmission oil temperature sensor resistance
- Throttle position sensor specs
- Vacuum sensor valve specs
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