Re: BPV Valve????? - Saab 9000 Bulletin Board - Saabnet.com
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Re: BPV Valve?????
Posted by Saabnutt (more from Saabnutt) on Tue, 15 Dec 2009 15:37:50
In Reply to: Re: Slight stumble/shudder at highway speeds, abusot, Tue, 15 Dec 2009 07:35:49
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Does the car try to stall when coming to a stop after a spirited run. If the BPV Valve is going bad, the Lamar flow of the intake air get stalled by turbo back pressure re-entering the throttle intake. Always good to clean the grounding cluster of wire near the fuel rail. Pull the TPS plug and check for electrical corrosion on the plug and TPS, and the AMM plug. Hows the cap and rotor? Rotor should read 1K Ohms. There is a resistor molded into the rotor that can become weak. Possibility of water mixed in your gasoline. Dri-gas additive wouldn't hurt. When I first purchase my 87/9000t, the car stumbled a little, until I started using STP gasoline conditioner. Keep Checking the easy, simple things first. Keep posting your progress.
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