MALFUNCTION OF FUEL INJECTION SYSTEM THROTTLE POSTITION SENSOR COULD CAUSE INTERMITTENT HIGH ENGINE IDLE

Oct 02, 1990 — Recall Campaign #90V177000

MALFUNCTION OF FUEL INJECTION SYSTEM THROTTLE POSTITION SENSOR COULD CAUSE INTERMITTENT HIGH ENGINE IDLE SPEED IMMEDIATELY AFTER STARTING ENGINE.

The recall was influenced by the manufacturer with about 165,000 units affected.

See recall notice

NHTSA Safety Recall Notice

90V177000

Manufacturer:	Chrysler (FCA US, LLC)
Recall date:	October 02, 1990
NHTSA Campaign #:	90V177000
Units affected:	165,000

Description:: MALFUNCTION OF FUEL INJECTION SYSTEM THROTTLE POSTITION SENSOR COULD CAUSE INTERMITTENT HIGH ENGINE IDLE SPEED IMMEDIATELY AFTER STARTING ENGINE.
Consequeces:: HIGH ENGINE IDLE WHEN CAR IS FIRST PLACED IN GEAR COULDRESULT IN UNEXPECTED ACCELERATION.
Corrective action:: REPLACE THROTTLE POSITION SENSORS WITH SENSORS THAT WOULD SEND CORRECT SIGNALS TO THE FUEL INJECTION SYSTEM.
Notes:: SYSTEM: THROTTLE POSITION SENSOR.VEHICLE DESCRIPTION: MULTI-PURPOSE VEHICLES EQUIPPED WITH 4.0 L ENGINE ANDAUTOMATIC TRANSMISSION.

Affects the following:

1990 JEEP CHEROKEE Complaints
The contact owns a 1990 Jeep Cherokee. The contact stated while driving 30-45 MPH, the brake pedal was depressed but the vehicle failed to respond. The contact stated that he increasingly applied pressure on the brake pedal until the vehicle responded. There was a 100-feet stopping distance delay. The dealer was notified of the failure and declined to diagnose the vehicle. The contact provided a description of the failure to the dealer who informed him that the brake pump motor assembly needed to be replaced; however, the parts were no longer available nationwide. The vehicle was not repaired. The contact later became aware of NHTSA Campaign Number: 96V260000 (Service Brakes, Hydraulic) which he associated with the failure; however, the parts were not available. The manufacturer was notified of the failure but did not provide any assistance. The failure mileage was approximately 195,492.;
1990 JEEP COMANCHE Complaints
THE BRAKE PEDAL SLOWLY GOES DOWN . THE CONSUMER ALSO STATED THAT THE PUMP MOTOR KEEPS RUNNING THAT AND INJECTION SYSTEM THROTTLE CONTROL STICKS AT IDLE. THE DEALER BLED THE MASTER CYLINDER AND EVERYTHING SEEMS FINE. *SCC *NLM;
1990 JEEP WAGONEER Complaints
CONTINUED ANTI-LOCK AND BRAKE FAILURE WITH NO WARNING. SYSTEM REPLACED ON 2/11/97, 11/10/00, 11/16/00, & 2/13/01. REPLACED WITH SAME PARTS THAT CONTINUE TO FAIL. VERY DANGEROUS. BRAKES GO TO FLOOR WITH NO WARNING. REQUEST FOR SERVICE IN 11/03 AFTER FAILURE DID NOT FIND PROBLEM. SYSTEM HAS FAILED 4 TIMES SINCE THEN. DEALER CURRENTLY HAS VEHICLE.*AK;