Vacuum Hoses - Saab 900 Bulletin Board - Saabnet.com
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In addition to all of the other suggestions, replace all of your vacuum hoses if you don't know how old they are.
Also, replace the rubber bushings that hold the vacuum nipples into the intake manifold and valve cover because, when they shrink after a decade or so, they're great sources of vacuum leaks.
A massive vacuum leak caused my project car (an '88 SPG) to fail emissions miserably.
Make sure that the advance plate in your distributor moves freely, too.
Posts in this Thread:
- 87' 900t failed emissions re-test w/brand new cat & o2!, Alfred E. Newman, Tue, 5 Jun 2007 00:46:49
- Vacuum Hoses, RS , Wed, 6 Jun 2007 12:04:34 <-- Viewing This Message
- Sounds familiar, Dick in Falls Church, Tue, 5 Jun 2007 18:38:10
- Re: 87' 900t failed emissions re-test w/brand new cat & o2!, Saabrobaz, Tue, 5 Jun 2007 12:53:06
- Re: 87' 900t failed emissions re-test w/brand new cat & o2!, george chiassion, Tue, 5 Jun 2007 09:36:52
- Re: 87' 900t failed emissions re-test w/brand new cat & o2!, Paul Clifton, Tue, 5 Jun 2007 09:29:05
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