Investigations
STALLING
NHTSA Engineering Analysis EA88025 — closed, opened 1988-03-10 and involving the JEEP JEEP.
NHTSA investigation EA88025 is a Engineering Analysis opened on 1988-03-10 and currently closed. The subject of record is JEEP JEEP, which places this file inside the Office of Defects Investigation queue for JEEP. Latest activity on this investigation was logged on 1989-10-03 — NHTSA updates that field whenever an Information Request goes out, a supplement is filed, or a status change is recorded in the public docket.
An Engineering Analysis like EA88025 is the deeper technical phase that follows a PE. NHTSA requests design, warranty, and field-failure data from the manufacturer, conducts its own testing when needed, and determines whether the evidence supports a safety defect finding that would compel a recall.
Investigators summarized the matter as follows: "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 HIGHFREQUEN..." Investigations are the early-warning layer of the federal auto-safety system, sitting upstream of formal recalls and defect orders. Whether this one closes without action or escalates into an Engineering Analysis, the full history stays in the ODI archive so researchers, litigators, and buyers can pull the paper trail at any time. Related JEEP files, listed below, give context on whether this is an isolated concern or part of a broader pattern across the brand.
Investigation Summary
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.===
About This Investigation Type
An Engineering Analysis (EA) is the in-depth phase following a Preliminary Evaluation. NHTSA engineers conduct testing, collect data from manufacturers, and perform detailed technical analysis to determine whether a safety defect exists. An EA may lead to a voluntary recall by the manufacturer or, in rare cases, a mandatory recall order.
Other JEEP Investigations
Instrument Panel Cluster (IPC) Failure
Underhood fires
Loss of Motive Power
False overheat leading to loss of motive power
Electronic Parking Brake Water Ingress
Data from NHTSA Office of Defects Investigation. Cross-references: NHTSA recall campaign API and NHTSA FARS where fatality records overlap. PlainCars does not rate or recommend vehicles. Learn more.
Read our methodology — how this data is sourced, computed, and verified.