NHTSA safety investigation
NHTSA Investigation EA88025
Engineering Analysis · Chrysler (FCA US, LLC) · VEHICLE SPEED CONTROL:LINKAGES
An investigation is not a finding that a defect exists.
NHTSA opens an investigation to examine whether a safety defect may exist. An open investigation is not a determination that a defect exists, and many investigations close without a recall. Investigations can, however, lead to one.
What NHTSA is examining
The agency's own description of the inquiry, quoted as published
STALLING
ANALYSIS OF INFORMATION FROM MANUFACTURER:THE MULTI-POINT INJECTIONSYSTEM (MPI) USED ON THE SUBJECT VEHICLES HAS HAD WIRING HARNESS FAILUREAND FAILURE OF THE CRANK POSITION SENSOR (CPS).BOTH FAILURES HAVE A HIGHFREQUENCY AND ARE THE SUBJECT OF JEEP TASK FORCES.NUMEROUS MODIFICATIONSTO BOTH ITEMS HAVE BEEN MADE.ANALYSIS:THE STALLING PROBLEM IS SEMI-INTERMITTENT, THAT IS WIRINGHARNESS FAILURE IS MOST LIKELY TO OCCUR UNDER THOSE CONDITIONS WHERE THEHARNESS IS DISTURBED (CORNERING AND ROUGH ROAD).CPS FAILURE CAN OCCUR ANYTIME, BUT FAILURE APPEARS TO BE ACCENTUATED BY HIGH UNDERHOOD TEMPERATURES(EXHAUST MANIFOLD LEAKS, ETC.) AND DISTORTION OF THE CPS HOUSING FROMEXHAUST HEAT DAMAGE OR THERMAL FLEXING.BOTH CONDITIONS RESULT IN NOSIGNAL.STATUS:RECOMMEND OPENING EA AND SENDING A MORE REFINED IR.===
An investigation is a separate record from a recall and from a manufacturer communication. A manufacturer campaign to repair a safety defect or a failure to meet a federal safety standard.
Investigation details
Identifiers, dates and outcome as recorded by NHTSA
- Action number
- EA88025
- Investigation type
- Engineering Analysis (EA)
- Status
- Closed
- Manufacturer
- Chrysler (FCA US, LLC)
- Component
- VEHICLE SPEED CONTROL:LINKAGES
- Opened
- Mar 10, 1988
- Closed
- Oct 3, 1989
- Associated recall campaign
- None recorded
Vehicles named in this investigation
3 model years across 3 models
Being named here means NHTSA included the vehicle in the scope of its inquiry. It is not a statement that these vehicles have a defect.