Question about 1990 Saab 900 Hatchback

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SAAB 900 1988

SAAB 900 8V TURBO
ENGINE A BIT SLOW AND JUST SOMETIMES TURBO IS WORKING PROPER !

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  • saabreur
    saabreur May 11, 2010

    Hi Lea: first off, the turbo model is a 16 valve engine; are you sure that your's is either a turbo or an 8 valve? Do you have a boost pressure gauge in the dashboard? How does it change when you're driving? What do you mean by 'a bit slow' and 'working proper'? Are there any other symptoms, knocking or anything else? The turbo charger system is quite complicated to trouble shoot, and getting it wrong can destroy the engine - some things are best left to a trusted professional. Let us know more Saabreur

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Your problem with the APC system. Any perceived fault and you only get base boost. The most likely fault is the boost pressure sensor located under the dash on the left-hand side. when it is bad you often hear the APC solenoid valve clicking at idle.

Posted on Mar 25, 2009

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