Question about 1995 Buick Riviera

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I have motor vibration. My mechanic at I have a leak around says the manifold. cant that be true.

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Yes it can be the problem. If you are pulling a vacuum into the intake manifold, you will have an improper mixture of fuel to air. A lot of other things can cause an engine to "miss" which causes the engine to vibrate. A perfectly good running engine can vibrate if you have a broken motor mount for example. You could also have faulty spark plug wires, even a blown head gasket. You have to start somewhere. You need a mechanic you can trust, don't be shy, ask him what else can cause your engine to vibrate. Hopefully, he will have a scanner to see what your onboard computer is showing to be wrong. If you are near an autozone or advance auto parts store they will hook the scanner up to your car for free to read what your computer is showing to be wrong. If it shows a code for "engine lean" then that would support the idea that you have a vacuum leak. Hope that helps.

Posted on Oct 17, 2010


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