NHTSA Office of Defects Investigation
Preliminary Evaluation PE05-058: HOOD STRUT FAILURE
- Closed
NHTSA's Office of Defects Investigation opened Preliminary Evaluation PE05-058 on November 3, 2005 and closed it on February 24, 2006. NHTSA's investigations file lists the 2001–2003 Volvo VN for it.
Updated daily from NHTSA's investigations file
Key facts
- NHTSA number
- PE05-058 (also written PE05058)
- 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 24, 2006
- Opened
- Closed
- Vehicle or equipment manufacturer
- Volvo Trucks North America
- Component
- Structure — Body — Hood — Hinge and Attachments
- Vehicles and equipment
- 2001–2003 Volvo VN
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 PE05-058.
try.vin does not copy NHTSA's investigation documents; NHTSA's investigation record lists the ones NHTSA has published.
VOLVO REPORTED FOUR FIELD REPORTS AND 62 WARRANTY CLAIMS RELATED TO HOOD STRUT FAILURE ON THE SUBJECT TRUCK/TRACTORS. THE HOOD STRUTS ARE A SINGLE ACTING OIL SHOCK THAT CONTROLS THE RATE OF THE OPENING OF THE HOOD. THERE ARE TWO STRUTS ATTACHED TO THE HOOD ASSEMBLY, ONE ON EACH SIDE. ODI'S CONCERN WAS THAT A FAILED HOOD STRUT WOULD ALLOW THE HOOD TO DROP ON ONE SIDE, POSSIBLY INJURING SOMEONE WORKING ON THE ENGINE. IN EXAMINING THE LIFE CYCLE OF HOOD STRUTS IN BOTH TRUCK AND PASSENGER CAR APPLICATIONS, ODI FOUND THATALL HOOD STRUTS REQUIRE PERIODIC REPLACEMENT DUE TO NORMAL ?WEAR-OUT.?DURING THE INVESTIGATION, ODI DISCOVERED THAT WHEN THE STRUTS WERE REPLACED, THE PROBLEM STARTED TO OCCUR ON THE SUBJECT TRUCKS.THE FAILURES RESULTED FROM THE IMPROPER INSTALLATION OF THE HOOD STRUT.THIS FINDING WAS SUBSTANTIATED BY FLEETS CONTACTED FROM INFORMATION SUPPLIED BY VOLVO, AS WELL AS VISITS TO LOCAL DEALERS. DURING THISINVESTIGATION, ODI PERFORMED THE FOLLOWING ACTIONS:A.REVIEWED WARRANTY/ENGINEERING DATA PROVIDED BY VOLVO;B.CONTACTED THE TWO INITIAL COMPLAINANTS TO GATHER MOREINFORMATION;C.CONDUCTED FIELD TRIPS TO AREA DEALERS TO INSPECT SUBJECTVEHICLES;D.CONTACTED TWO FLEETS FROM OUTSIDE THE WASHINGTON D.C. AREA TO DISCUSS THEIR EXPERIENCE WITH THESE HOOD STRUTS;ANDE.REVIEWED THE APPROPRIATE SERVICE MANUALS.BASED ON THE DATA PROVIDED BY VOLVO AND THE INFORMATION GATHERED BY ODI, IT IS APPARENT THAT SOME DEALERS AND OWNERS MAY HAVE BEENINSTALLINGREPLACEMENT STRUTS INCORRECTLY.DEPENDING ON WHICH MODEL TRUCK IS BEING WORKED ON, THERE ARE TWO DISTINCT WAYS TO MOUNT THE REPLACEMENT STRUT TO THE FRAME RAILS.FLEETS CONTACTED DURING THIS INVESTIGATION REPORTED NO FURTHER ISSUES WITH THE STRUTS ONCE PROPER INSTALLATION INSTRUCTIONS WERE PROVIDED TO THEM FROM VOLVO. ODI HAS DISCUSSED THE MATTER WITH VOLVO AND THEY HAVE DECIDED TO REVISE THE SERVICE MANUALS FOR THESE TRUCKS TO INCLUDE PICTURES OF BOTH HOOD STRUT MOUNTING ARRANGEMENTS IN EVERY SERVICE MANUAL, REGARDLESS OF TRUCK MODEL.THEREFORE,IF SOMEONE WAS USING THE INCORRECT MANUAL, THEY WOULD STILL BE ABLE TO VIEWALL THE POSSIBLE STRUT MOUNTINGARRANGEMENTS, REGARDLESS OF MODEL.THIS INVESTIGATION IS CLOSED, AS A SAFETY RELATED DEFECT WITH THE HOOD STRUTS HAS NOT BEEN IDENTIFIED AT THIS TIME. FURTHER USE OF THE AGENCY?S RESOURCES ARE NOT CURRENTLY WARRANTED. THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT NO SAFETY-RELATED DEFECT EXISTS.THE AGENCY RESERVES THE RIGHT TO TAKE FURTHER ACTION ON THE VEHICLES IF WARRANTED BY NEW CIRCUMSTANCES.ODI WILL CONTINUE TO MONITOR FIELD REPORTS AND TAKE APPROPRIATE ACTION IF INDICATED.
Vehicles and equipment listed for this investigation
NHTSA's investigations file lists these vehicles and equipment for Preliminary Evaluation PE05-058. 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.
Volvo
All Volvo 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.
Volvo VIN check: decode a VIN to see its year, make and model.
Sources
NHTSA's investigation record for PE05-058
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.