NHTSA Office of Defects Investigation
Preliminary Evaluation PE07-052: ENGINE COMPARTMENT FIRE
- Closed
NHTSA's Office of Defects Investigation opened Preliminary Evaluation PE07-052 on October 19, 2007 and closed it on February 21, 2008, the day it opened Engineering Analysis EA08-006, which this investigation's summary cites. NHTSA's investigations file lists the Chrysler Pacifica and Pacifica AWD for it.
Updated daily from NHTSA's investigations file
Key facts
- NHTSA number
- PE07-052 (also written PE07052)
- Investigation type
- Preliminary Evaluation The first stage of most defect investigations: NHTSA's Office of Defects Investigation gathers basic information about a possible safety defect, including from the manufacturer.
- Status
- Closed February 21, 2008
- Opened
- Closed
- Vehicle or equipment manufacturer
- Chrysler (FCA US, LLC)
- Component
- Steering — Hydraulic Power Assist — Power Steering Fluid
- Vehicles and equipment
- Chrysler Pacifica and Pacifica AWD
A recall appears here only when NHTSA's investigations file links one to the investigation; NHTSA's summary or record can name others.
NHTSA's summary
As NHTSA's Office of Defects Investigation wrote it for Preliminary Evaluation PE07-052.
try.vin does not copy NHTSA's investigation documents; NHTSA's investigation record lists the ones NHTSA has published.
COMPLAINANTS ALLEGE THAT A FIRE ERUPTED UNDER THE HOOD, NEAR THE FRONT OF THE VEHICLE.IN CHRYSLER'S RESPONSE TO ODI'S NOVEMBER 2, 2007 INFORMATION REQUEST, CHRYSLER ASSERTS THAT THE ALLEGED DEFECT OCCURS ONLY IN THE 4.0L ENGINES AND THE CONSUMER WILL EXPERIENCE A LOSS OF POWER STEERING FLUID OR A NOISY POWER STEERING PUMP BEFORE SEEING ANY EVIDENCE OF SMOKE OR FIRE.CHRYSLER ALSO STATES THAT A TUBE NUT ON THE HIGH PRESSURE POWER STEERING LINE WAS DISCOVERED TO BE CROSS THREADED DURING THE ASSEMBLY PROCESS AND DID NOT ALLOW PROPER SEALING OF THE O-RING.THE POWER STEERING SYSTEM IN THE 4.0L ENGINE IS ASSEMBLED AT THE CHRYSLER PLANT.THE POWER STEERING SYSTEM FOR THE 3.8L ENGINES ARRIVES AT THE CHRYSLER PLANT PRE-ASSEMBLED.CHRYSLER FOUND THAT IN THE 4.0L ENGINE, IT WAS POSSIBLE TO CROSS-THREAD THE TUBE NUT ON THE HIGH PRESSURE LINE DURING ITS ATTACHMENT TO THE STEERING GEAR, THUS CREATING AN IMPROPER SEAL.CHRYSLER IMPLEMENTED ASSEMBLY PLANT PROCESS CHANGES TO ELIMINATE THE POSSIBILITY OF CROSS-THREADING, AND APPLIED ADDITIONAL QUALITY CONTROL MEASURES TO DETECT POWER STEERING FLUID LEAKS.CHRYSLER STATED THAT WARRANTY AND FIELD DATA SUGGESTS THAT THESE PROCESS CHANGES HAVE MINIMIZED THE POSSIBILITY OF CROSS-THREADING.WITH REGARD TO THE VEHICLES PRODUCED PRIOR TO THE PRODUCTION CHANGE, A REVIEW OF THE WARRANTY CLAIMS INDICATES THAT THE ALLEGED DEFECT HAS NOT DECLINED IN THE 4.0L POPULATION.ODI IS UPGRADING THIS PRELIMINARY EVALUATION TO AN ENGINEERING ANALYSIS, EA08-006, TO FURTHER EVALUATE THE ISSUE.
Vehicles and equipment listed for this investigation
NHTSA's investigations file lists these vehicles and equipment for Preliminary Evaluation PE07-052. A listed model year means only that an investigation names it; it says nothing about any particular vehicle. Model years with a try.vin recall page link to that page's NHTSA investigations section.
Chrysler
All Chrysler recallsWhat an NHTSA investigation is
NHTSA's Office of Defects Investigation (ODI) looks into possible safety defects in vehicles and equipment, often after owner complaints. An investigation usually starts as a Preliminary Evaluation, or as a Recall Query when it concerns whether an existing recall covers the right vehicles or fixes the problem, and ODI can upgrade it to a more detailed Engineering Analysis. A Defect Petition asks NHTSA to open an investigation, and Audit and Equipment Queries are administrative investigations into whether companies complied with federal vehicle safety requirements, such as reporting, recall and certification rules.
An open investigation is not a finding that a safety defect exists, and NHTSA can close one without a recall.
To see whether a specific vehicle has an open recall, enter its VIN at nhtsa.gov/recalls.
Chrysler VIN check: decode a VIN to see its year, make and model.
Sources
NHTSA's investigation record for PE07-052
Investigation details come from NHTSA's investigations file, which try.vin imports once a day. The investigation types are described from the U.S. Department of Transportation Inspector General's May 2023 report on NHTSA's Office of Defects Investigation, NHTSA's petition rules (49 CFR Parts 552 and 557) and NHTSA's Office of Defects Investigation procedures. How try.vin reads NHTSA investigations.