Get a can of spray gumout, start the car and spray around, pay attention to vacuum lines and manifold, if the idle changes, you found a leak. You want the engine running and spray on the outside but do direct the stream onto the hoses, if it is a vacuum leak, the engine idle will change speed, then you have detected a leak, repair the vacuum leak and see how it runs!
Also do not spray hot exhaust manifolds or pipes, it can cause a fire!
When was your last tune up?
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Friday, October 1st, 2010 AT 11:33 AM