Investigations

POWER RACK AND PINION STEERING FAILURE

NHTSA Engineering Analysis EA03019 — closed, opened 2003-09-15 and involving the PONTIAC GRAND PRIX.

EA03019 Engineering Analysis Closed

Vehicle: PONTIAC GRAND PRIX View model page

NHTSA investigation EA03019 is a Engineering Analysis opened on 2003-09-15 and currently closed. The subject of record is PONTIAC GRAND PRIX, which places this file inside the Office of Defects Investigation queue for PONTIAC. Latest activity on this investigation was logged on 2003-12-18 — 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 EA03019 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: "GM'S LETTER TO NHTSA DATED DECEMBER 11, 2003, EXPANDS ITS ORIGINAL RECALL (NHTSA 02V286) TO INCLUDE CERTAIN W-BODY VEHICLES: 96-97 OLDS CUTLASS SUPREME; 98 OLDS INTRIGUE; 97-98 OLDS CUTLASS; 97-98 CHEVY LUMINA, MONTE CAR..." 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 PONTIAC files, listed below, give context on whether this is an isolated concern or part of a broader pattern across the brand.

Status
Closed
Type
Engineering Analysis
Opened
2003-09-15
Latest Activity
2003-12-18

Investigation Summary

GM'S LETTER TO NHTSA DATED DECEMBER 11, 2003, EXPANDS ITS ORIGINAL RECALL (NHTSA 02V286) TO INCLUDE CERTAIN W-BODY VEHICLES: 96-97 OLDS CUTLASS SUPREME; 98 OLDS INTRIGUE; 97-98 OLDS CUTLASS; 97-98 CHEVY LUMINA, MONTE CARLO AND MALIBU; 96 PONTIAC GRAND PRIX; AND 96-98 BUICK REGAL. THE NUMBER OF VEHICLES RECALLED IS 750,283. GM DETERMINED THAT FAILURE OF THE RACK AND PINION IS RELATED TO DAMAGE OF THE LOWER PINION BEARING AND THE LEVEL OF THE PINION BEARING PRE-LOAD SPRING FORCE. GM STATES, "HIGHER RACK PRE-LOAD SPRING FORCE (133 LB.) IS THE DESIGN CHARACTERISTIC MOST CLOSELY ASSOCIATED WITH HIGHER BEARING DAMAGE RATES IN MOST OF THE VEHICLE APPLICATIONS THAT USED THE GENERAL BEARING COMPANY (GBC) BEARING." ALL OF THE VEHICLES COVERED IN THE EXPANDED RECALL HAVE THE 133 LB SPRING FORCE. THE 96 LUMINA/MONTE CARLO AND 97-98 CENTURY W-BODY VEHICLES INCLUDED IN THIS INVESTIGATION UTILIZE A LOWER SPRING FORCE AND ARE NOT INCLUDED IN THE RECALL.

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 PONTIAC Investigations

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.