Re: Not getting full boost (may be due to valve noise)? - Saab 900 Bulletin Board - Saabnet.com
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Re: Not getting full boost (may be due to valve noise)?
Posted by Simon S (more from Simon S) on Mon, 1 Oct 2001 10:12:41
In Reply to: Not getting full boost (may be due to valve noise)?, jake [Profile/Gallery]
, Mon, 1 Oct 2001 09:49:40
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Valve noise shouldn't make you go base-boost unless it's setting off the knock sensor, but I've never heard of that happening. Depending on just how much valve noise, it could be normal. Does the noise go away after the engine's been running for a while (up to 30 min.)?
You said you cleaned the solenoid, you should verify that the wires from the APC to the solenoid are good. Does your APC gauge in the dash work? Does it go to full vacuum at idle (almost to the bottom of the white)?
posted by 24.93.15...
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