The problem
Isuzu is recalling certain model year 2006-2007 Isuzu npr, nqr, nrr, GMC w3500, w4500, w5500, and Chevrolet w3500, w4500, and w5500 vehicles. The oil pipe bolts were not tightened properly during the vehicle production process. If not adequately tightened, the bolt May loosen after prolonged vehicle operation, which can result in oil seepage or leakage from the packing seals. In general, as oil is lost, the oil warning lamp will illuminate, and there May be abnormal engine noise and loss of oil can cause engine seizure.
The risk
If the engine seizes while the vehicle is being driven, the vehicle May experience sudden deceleration leading to an increased risk of a crash.
The fix
Dealers will replace the packing seals with new ones and the bolt will be tightened with a specified torque. This service will be performed free of charge. The safety recall began on January 28, 2011. Owners May contact Isuzu at 1-800-255-6727.
Recall details
| NHTSA campaign | 10V-636 (10V636000) |
|---|---|
| Manufacturer | General Motors, LLC |
| Component | Engine and engine cooling |
| Report date | December 15, 2010 |
| Owners notified | January 28, 2011 |
| Vehicles affected | 2,992 |
| Initiated by | Manufacturer |
Vehicles covered
Owner complaints about the engine & cooling
Frequently asked questions
Is the recall 10V-636 repair free?
Yes. Chevrolet dealers will fix the problem at no cost: Dealers will replace the packing seals with new ones and the bolt will be tightened with a specified torque. This service will be performed free of charge. The safety recall began on January 28, 2011. Owners May contact Isuzu at 1-800-255-6727.
How do I know if my car is included?
Not every vehicle of the listed model years is affected — the recall covers 2,992 vehicles built in a certain window. Check your 17-character VIN with our VIN recall check or at nhtsa.gov/recalls.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.