High speed stalling

An NHTSA Preliminary Evaluation into Jeep vehicles. Closed 10 March 1988.

Investigation
PE87048
Type
Preliminary Evaluation
Opened
19 August 1987
Closed
10 March 1988

What NHTSA investigated

Summary of information from manufacturer:the fuel injected 6 CYLINDER(242 cid) in-line engine is apparently new to the installation into thejeep cherokee.analysis:the fuel injected engine allegedly stalls while the vehicle iscruising at highway speeds (35-55MPH).TWO failure modes have beenidentified, stalling when cornering or going over a bump and the otheris engine stall while cruising--usually in high ambient temperaturesituations.jeep has identified a problem with the exhaust manifoldgasket fit to the cylinder head which affects the high temperatureperformance of the cps (crank position sensor/engine speed sensor)module. Chrysler/jeep has a task force to study the problem.status:crecommend closing this pe and continuing the analysis in an ea.#===

Vehicles covered

MakeModelModel years
JeepCHEROKEE1987

Source

From NHTSA’s investigation file, rebuilt daily. To report a problem with your own vehicle, go to nhtsa.gov/report-a-safety-problem. All open investigations.