1600 RPM and climbing at idle-1984 900S - Saab 900 Bulletin Board - Saabnet.com
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1600 RPM and climbing at idle-1984 900S
Posted by lefal (more from lefal) on Sun, 20 Jul 2003 18:32:14
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I've checked for vac leaks-none found yet. Replaced the Aux Air Valve-Idle went higher. Checked connector to Aux Air Valve and found it had no ground through the wire. So I have found at least one problem. If I turn on the AC the idle goes to 1200 rpm. If I squeeze shut the line from the Aux Air Valve idle goes to 1200. If I squeeze off the hose and turn on the AC then the idle goes to 800 rpm. I must be missing something simple here, anyone have a suggestion. Also, I have a noticable gas smell in the car after it has not been driven for a couple of days. Charcoal canister appears to be hooked up. Could these vac lines be reversed? Where are they supposed to go? Could high idle be related to head gasket failure?
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