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1990 Jeep Comanche Problems

Find the most common issues based on 1990 Jeep Comanche owner complaints.
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Most Common 1990 Jeep Comanche Problems

The head gasket may seep oil externally. An updated head gasket is available that should correct this concern.
Engine oil leaks from the valve cover gasket, oil pan gasket and timing cover gasket are common.
Child seat tether anchors are available from Chrysler and can improve the performance of child restraints. Each tether kit has all the necessary parts and detailed instructions according to our tec...
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0 Known 1990 Jeep Comanche Brakes Problems

1 Known 1990 Jeep Comanche Drive Train Problem

Leaks at the front and/or rear differential pinion seal and from the transfer case are common. Leakage from the transfer case normally occurs at the case-mating surfaces and require removal of th...

2 Known 1990 Jeep Comanche Electrical & Lights Problems

Be sure to verify starter replacement procedure before replacing the starter. A new starter replaced the older design and does not use a shim in the installation. Incorrect use of the shim can caus...
Poor connections of the ECU wires at the bulkhead can cause erratic RPMs and engine-stalling. The repair typically involves either bypassing the connector wires or cleaning and replacing spread ter...

4 Known 1990 Jeep Comanche Engine Problems

The head gasket may seep oil externally. An updated head gasket is available that should correct this concern.
Engine oil leaks from the valve cover gasket, oil pan gasket and timing cover gasket are common.
Ignition wire failures can cause a rough idle or intermittent engine misfire and there might not be a Check Engine light.

4 Known 1990 Jeep Comanche Exhaust & Emissions Problems

Exhaust manifolds commonly crack where the pipes are welded; the manifolds should be replaced.
The throttle position sensor (TPS) may fail causing intermittent drivability problems like hard starting, stalling, and/or hesitation when accelerating. A failed TPS will require replacement, ...
The throttle body may accumulate an oily, black residue in the bore and on the throttle plate causing hard starting or possibly stalling when coming to a stop. The throttle body should be cleaned...

0 Known 1990 Jeep Comanche Heating & Air Conditioning Problems

0 Known 1990 Jeep Comanche Maintenance Problems

1 Known 1990 Jeep Comanche Miscellaneous Problem

Child seat tether anchors are available from Chrysler and can improve the performance of child restraints. Each tether kit has all the necessary parts and detailed instructions according to our tec...

0 Known 1990 Jeep Comanche Suspension & Steering Problems

12
Known 1990 Jeep Comanche Problems & Complaints

Ignition wire failures can cause a rough idle or intermittent engine misfire and there might not be a Check Engine light.
Exhaust manifolds commonly crack where the pipes are welded; the manifolds should be replaced.
The throttle position sensor (TPS) may fail causing intermittent drivability problems like hard starting, stalling, and/or hesitation when accelerating. A failed TPS will require replacement, ...
The throttle body may accumulate an oily, black residue in the bore and on the throttle plate causing hard starting or possibly stalling when coming to a stop. The throttle body should be cleaned...
Poor connections of the ECU wires at the bulkhead can cause erratic RPMs and engine-stalling. The repair typically involves either bypassing the connector wires or cleaning and replacing spread ter...
Be sure to verify starter replacement procedure before replacing the starter. A new starter replaced the older design and does not use a shim in the installation. Incorrect use of the shim can caus...
Engine oil leaks from the valve cover gasket, oil pan gasket and timing cover gasket are common.
Some models are susceptible to rear main oil seal failures in dirty or dusty conditions. As dirt and dust collect on the oil seal, the abrasion wears through the sealing surface. A rubber plug, ins...
The head gasket may seep oil externally. An updated head gasket is available that should correct this concern.
The outer exhaust manifold studs can break and cause exhaust leaks, commonly noted as a ticking type noise. The outer studs, clamps, and nuts will need to be replaced and are now being tightened to...
Leaks at the front and/or rear differential pinion seal and from the transfer case are common. Leakage from the transfer case normally occurs at the case-mating surfaces and require removal of th...
Child seat tether anchors are available from Chrysler and can improve the performance of child restraints. Each tether kit has all the necessary parts and detailed instructions according to our tec...
Get a Repair Estimate
Guaranteed by certified locations nationwide. Learn more
RepairPal estimates are guaranteed at over 1,700 quality certified locations nationwide. Learn more
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