sounds like a vacuum leak - Saab 900 Bulletin Board - Saabnet.com
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sounds like a vacuum leak
Posted by tweetiedancer [Email] (more from tweetiedancer) on Sat, 2 Feb 2013 16:28:11
In Reply to: Idle Headache, Keith85spg, Sat, 2 Feb 2013 15:58:18
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Check the vacuum lines again. I usually take all the vacuum lines off the intake manifold and put rubber caps on the intake manifold. If that settles the engine down, then I know there is a vacuum leak somewhere. One by one I install the vacuum lines to confirm each one is OK. One time it was not a vacuum line. It was a broken intake manifold gasket. I found that by spraying WD40 around the gasket to head joint and the rpm's increased. I put some grease on the suspected leak and the motor settled down. Tell us what you find. Thanks
posted by 24.61.2...
Posts in this Thread:
- Idle Headache, Keith85spg, Sat, 2 Feb 2013 15:58:18
- Results of possible fix!, Keith85spg, Sun, 3 Feb 2013 17:38:15
- Re: Idle Headache, SWEDECAR , Sun, 3 Feb 2013 08:30:23
- Re: Idle Headache, Chris D, Sun, 3 Feb 2013 00:51:15
- +1. nm, Simon S, Sun, 3 Feb 2013 00:56:56
- Twist the ides screw counter clockwise, vvack0matic , Sat, 2 Feb 2013 18:32:30
- Re: Idle Headache, aka oldsaab, Sat, 2 Feb 2013 17:04:56
- sounds like a vacuum leak, tweetiedancer, Sat, 2 Feb 2013 16:28:11 <-- Viewing This Message
- Re: Idle Headache, Simon S, Sat, 2 Feb 2013 16:04:24
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