Hey guys/gals, I have a problem thats driving me nuts, going through all the other topics, and trust me, Ive went through a lot of them, I've noticed that you talk alot about vacuum lines. Now I have all the symptoms of a vacuum leak. How do I find it. I dont want to bring my car to a shop since they will charge me up the a@@ to look it over. What are some of the ways to find this leak?? I have a 1993 bonneville SSEI! I am 99.9% sure my problem is a vacuum leak! Any help would be awesome!

What is your car doing that makes you suspect vaccum leaks. We need all pertinent information

Take some throttle body/carb cleaner and spray the crap out of the vacuum lines/fittings. If your engine RPMs change corresponding to the spray, you found the leak.

would WD40 work??? The symptoms are a wierd idle, it goes up and down, up and down, and when I first start it, it wants to stall out, but doesnt if I give it some gas. There is also some play in my SC guage, so I think it might be a line to the SC

no, use carb/intake cleaner. much thinner than WD40 so it'll be sucked into leaks faster and easier.

But as a preliminary judgement, that sounds like the MAF sensor, but umm yeah. do you have any SES codes?

throttle body not carb

throttle body cleaner is diffrent then carb cleaner

CARB cleaner. It'* more combustible and enters the system BEHIND the critical sensors. You don't use much.

Not sure where Badnit got the TB cleaner idea.

Start off by touching your vacuum lines. Replace any line that leaves black on your fingers. Then go from there. You may have many small leaks from old lines.

No engine code is being set off!!

Sallan, please click on the Profile link on the top menu bar, and add your year and model (trim level) to your signature. It'll help us help you.