i have a 99 Pontiac grand am se and if i let off the gas it dies any ideas......
Asked by chris_clarady Feb 21, 2013 at 10:19 AM about the 1999 Pontiac Grand Am 4 Dr SE Sedan
Question type: Maintenance & Repair
4 Answers
migration_judge_roy answered 11 years ago
take a look at your EGR valve to make sure it's operating correctly. take it to your smog guy if you don't want to get your hands dirty.
migration_judge_roy answered 11 years ago
this device is supposed to divert exhaust gas into the intake manifold on deceleration, if it sticks, you'll only get exhaust gas...real bad. could be the ghost in the machine-
I would guess a vacuum leak. Maybe a crankshaft position sensor. Any codes? What engine?