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A vaccum leak possibly? 200 1990

uid 1758's pic
posted by  blkberry on  Thu Nov 28 14:16 CST 2002
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last visit: Wed May 2 12:55 CST 2007
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Hi all

Hope everyone is having a safe Thanksgiving today.

My girlfriend's 90 245 is still hesitating but only while in the park position. On the highway the car runs well but when i'm at a stoplight, It acts as if it is about to shut off then it would go back to a smooth idle. Also the service light will come on when this happens. I tried to find an air leak but have not found one. Could it be one of the plugs missing? How could i check for vacuum leaks at home?

Thanks in advance.








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    A vaccum leak possibly?

    posted by  Smitty on  Fri Nov 29 02:57 CST 2002
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    last visit: Sat Aug 9 22:44 CST 2014
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    I would carefully pull the intake snorkel off and check it for cracks, especially on the underside where it rubs against things. Once the car is at speed vacuum leaks (unless enormous) are masked.








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    A vaccum leak possibly?

    posted by  shovelfxr on  Thu Nov 28 14:59 CST 2002
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    last visit: Sat Oct 27 14:55 CST 2001
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    one way i check for vacuum leaks is to spray a bit of starting fluid around intake while engine is running. change in engine speed signals leak. how old is oxygen sensor?







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