Issue ID | 877885 |
Internal NHTSA # | 10421516 |
Manufacurer | GENERAL MOTORS LLC |
Brand | GMC |
Model | SIERRA 1500 |
Model Year | 1999 |
File date | 30/08/05 |
Component | ENGINE AND ENGINE COOLING |
Product type code | VEHICLE |
Description of the problem | Found the exhaust manifold bolts on both sides of the engine snapping off for no reason at about 65k miles. When i asked the local dealer about this they stated they would need to remove and reset the engine heads in order to remove the broken bolts. I did not have them repair the problem due to the cost they quoted. I now have three bolts on each side which hold the manifolds in place. The problem seam to happen at the change of the season from fall to winter. In the extreme cold weather, on a cold start up, there is an obvious exhaust leak. As the engine heats up the leak does disappear. This is a safety hazard due to the fact if the engine exhaust blow by is transferred into the cab the driver could become unconscious and death could occur. |
Vehicle Mileage at Failure | 65000 |
Number of Occurences | 1 |
Source of the issue | NHTSA WEB SITE |
City and State | HENRICO , VA |
VIN pattern | 2GTEK19T2X1XXXXXX |
Was vehicle invloved in a crash? | N |
Was vehicle involved in a fire? | N |
Was incedent reported to police? | N |
Was medical attention required? | |
Was part original equipment? | |
No. of injured persons | |
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Date of purchase | 04/07/24 |
Was original owner? | N |
Anti-lock brakes | N |
Cruise control | N |
Number of cylinders | 8 |
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