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Pontiac Bonneville Problems

Engine Vacuum Leak From EGR Tube on Pontiac Bonneville

Problem Description and Possible Solution

The EGR tube may develop an engine vacuum leak causing the engine to run lean. The Check Engine Light may or may not illuminate.

(16 people reported this problem)

Pontiac Bonneville Vehicles With This Problem

RepairPal Verified
Average mileage: 201,000 (164,000–270,000)
8 model years affected: 1993, 1997, 1998, 1999, more2000, 2001, 2002, 2003
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Viewing 1-2 of 2 comments
Car runs good in cold weather, when temperatures get to be in the 70s and above, sputtering and near stalling situations occur. Changed egr valve last year, thought I nailed it.. Wrong!
Im having the same issue where the upper egr tube goes to the upper manifold. Its a newer astic manifold and cant find a replacement tube. I definitely have a leake there confirmed by the smoke and water test.