Re: SPG started to misfire and died - Saab 900 Bulletin Board - Saabnet.com
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First thing: There are three large black plastic nipples fitted into rubber grommets on the top and side of the intake manifold. With age the rubber grommets get spongy and when you boost hard one can be blown out of the manifold. That instantly creates a huge vacuum leak that will make the car barely run. Needless to say it's a pretty easy fix, just push the hose and grommet back in place and don't boost until you replace the old grommet with a new one. If it went from running good to barely running very suddenly it's most likely to be something like that. Another one is to look at the coil primary wires. Sometimes they will slowly chew through the hood insulation blanket and short out against the hood.
Posts in this Thread:
- SPG started to misfire and died, josh, Tue, 24 Nov 2015 13:13:32
- Re: update, Josh, Thu, 3 Dec 2015 15:16:11
- Re: SPG started to misfire and died, josh, Wed, 25 Nov 2015 11:49:13
- Re: SPG started to misfire and died, Cmyles , Tue, 24 Nov 2015 15:09:32 <-- Viewing This Message
- Re: SPG started to misfire and died, Simon S, Tue, 24 Nov 2015 14:44:41
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