vacuum leak found - Saab 900 Bulletin Board - Saabnet.com
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vacuum leak found
Posted by kooch (more from kooch) on Thu, 2 Aug 2001 03:59:13
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high idle of late. thought it was the amm. replaced with new, and same problem. it would be fine on start up, but then after driving for awhile, w/ boost, i would leave the highway and find my idle around 12-1400rpm. pita. tonight took vac pump and went to work. found two areas that wouldn't hold pressure or vacuum. 1st, autometer gauge installed on a-pillar. turns out i didn't seal the fitting threads when i put vacuum nipple on during install. a little pipe thread tape and all good. 2nd, bpv. won't pressurize and won't hold vacuum. line to the unit is good. shut off car after high idle. disconnected hose to bpv and plugged the manifold nipple. restarted, normal idle. i'll try to replace it tomorrow. i wonder if this problem will affect the performance of the car? lost boost?
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