1990 Jeep Comanche Service and Repair Manual
1990 Jeep Comanche service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.
Designed for technicians and DIY owners, this manual helps you diagnose issues correctly, follow proven repair steps, and use wiring diagrams and system sections to track faults faster.
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VEHICLE DESCRIPTION: PASSENGER AND MULTI-PURPOSE VEHICLES ORIGINALLY SOLD OR CURRENTLY REGISTERED IN THE STATES OF CONNECTICUT, ILLINOIS, INDIANA, MAINE, MARYLAND, MASSACHUSETTS, MICHIGAN, NEW HAMP
THE REDUCED STRENGTH CAN ALLOW THE CAST IRON WEAR SURFACE TO SEPARATE FROM THE HUB, REDUCING THE BRA
DEALERS WILL REPLACE THESE ROTORS WITH ROTORS THAT ARE COATED WITH A CORROSION PROTECTION.
MALFUNCTION OF FUEL INJECTION SYSTEM THROTTLE POSTITION SENSOR COULD CAUSE INTERMITTENT HIGH ENGINE IDLE SPEED IMMEDIATELY AFTER STARTING ENGINE.
HIGH ENGINE IDLE WHEN CAR IS FIRST PLACED IN GEAR COULDRESULT IN UNEXPECTED ACCELERATION.
REPLACE THROTTLE POSITION SENSORS WITH SENSORS THAT WOULD SEND CORRECT SIGNALS TO THE FUEL INJECTION
AUTOMATIC TRANSMISSION FLUID USAGE ATF+4. *TT *MJ
SUBJECT REGARDING WIRE SPLICE REPAIRS. *SB
THIS BULLETIN PROVIDES A REVISED WIRE SPLICE PROCEDURE AND RELATED PARTS. *TT
CONCERNS WITH ENGINE COOLANT USAGE. *NLM
INFORMATION ON INSTALLATION OF RADIO TRANSMITTING EQUIPMENT. *AK
VARIOUS CAR OWNER'S HAVE EXPRESSED INTEREST IN USING ENGINE COOLANTS MADE WITH PROPYLENE GLYCOL INSTEAD OF ETHYLENE GLYCOL. *YC
DIFFICULT TO CLEAN LIGHT COLORED "CHALKY" RESIDUE FROM PLASTIC BODY COMPONENTS THAT ARE MOLDED IN BLACK. *TW
RECALL 558 - FAILURE OF THE OXYGEN SENSOR AND CATALYTIC CONVERTER MAY CAUSE A VEHICLE TO BE IN VIOLATION OF CALIFORNIA EMISSIONS STANDARDS. TO CORRECT THIS CONDITION, THE OXYGEN SENSOR AND CATALYTIC CONVERTER MUST BE REPLACED WITH IMPROVED
Showing the 8 most recent of 10 technical service bulletins on file with NHTSA.
VEHICLE STARTED AND EXCELERATED AND CAUSED A LINEUP OF CRASHES.UPDATE ON THROTTLE COULD HAVE MINIMIZED OR PREVENTED, BUT HEARING THE PROBLEMS OTHERS HAVE HAD AND CONSIDERING NOT UPDATING. FIRST FIVE Y
VEHICLE STARTED AND EXCELERATED AND CAUSED A LINEUP OF CRASHES.UPDATE ON THROTTLE COULD HAVE MINIMIZED OR PREVENTED, BUT HEARING THE PROBLEMS OTHERS HAVE HAD AND CONSIDERING NOT UPDATING. FIRST FIVE Y
5SPD WONT HOLD TRUCK&TRAILER ON STEEP LAUNCH RAMP.PARKING BRAKE DISENGAGES.DEALERS DON'T KNOW HOW TO FIX RECURRING PROBLEM.I'VE ASKED FOR HAND BRAKE BUT THEY SAY THE CAN'T CONVERT FROM FOOT TO HAND BR
5SPD WONT HOLD TRUCK&TRAILER ON STEEP LAUNCH RAMP.PARKING BRAKE DISENGAGES.DEALERS DON'T KNOW HOW TO FIX RECURRING PROBLEM.I'VE ASKED FOR HAND BRAKE BUT THEY SAY THE CAN'T CONVERT FROM FOOT TO HAND BR
ONE TIE ROD BROKE, CAUSING LOSS OF CONTROL/ACCIDENT. TT
Showing the 5 most serious of 15 complaints filed with NHTSA.
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