1999 Grand Am SE, 70000 miles, V6 Engine. Over two weeks ago there was a flood near my house and the car got water in it. The water was up over the tires but not the hood. We got the car out of the water within 30 minutes. Recently I took it on a trip (about 300 total) and it ran fine but the next day I noticed it idling high (1500 rpm) and it began to accelerate on its own. I have to ride the brakes to control the speed and when I put it in park the idle surges to 2250 and gets higher the longer it stays in park. I took it to 2 mechanics and the second said it may be the computer is messed up but I have to take it to a dealer to get fixed. Are there any other possibilities and how much would it cost to replace/fix the computer?
Sunday, April 29th, 2007 AT 2:39 PM