Crazy idle upon start-up '93
I have been reading about what might be the problem on this site but I cannot figure it out at all. My car is an all original 93 Bonneville that has a wicked idle upon start-up. It will do it for about 1-3 minutes and then it will go away. My mom gave me the car so I know that it has been babied, I made her for the most part. It has 150,000 miles on it and runs great except for this problem. I have talked with a few mechanic friends and they are telling me that these cars are notorious for having the fuel pressure regulator go out on them, but that seems a little strange to me. I have also read that it might be something to do with the throttle body. I was going to take it off and look at it but that particular area looks to be a big mess and without step by step directions I am not going to tear into it. Does anyone know what might be the problem with it? I know that it isnt the fuel pump because when you give it gas the car will actually rev and also once you leave it for a short time it does not happen again until the car has been sitting for a while. Any help on this would be greatly appreciated. Thanks.