Question about 1991 Oldsmobile Cutlass Supreme

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1991 cutlass supreme vacuum leak

The vacuum leak is being caused by the SMALLEST vacuum hose I have ever seen. It is located on top of the motor alongside the engine coolant sensor. There are a total of three(3) hoses coming into the "sensor". Two are SMALL and one is quite a bit larger. One of the SMALL vacuum hoses is the problem. EVER SO GENTLY PULL on the hose and it will probably pull out. Use a good epoxy to hold it in place and problem will be solved.

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  • yadayada
    yadayada May 11, 2010

    This is an answer not a question????

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The vacuum leak is being caused by a very SMALL vacuum hose . It is located on top of the motor where the intake manifold(from the filter....follow the large flex hose) attaches to the motor. There are a total of three(3) hoses coming into some type of air controller. Two are SMALL and one is quite a bit larger. One of the SMALL vacuum hoses is the problem. EVER SO GENTLY PULL on the hose and it will probably pull out. Use a good epoxy to hold it in place and problem will be solved.

Posted on Nov 29, 2008

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