Re: fuel pump pressure flux - Saab 9000 Bulletin Board - Saabnet.com
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Re: fuel pump pressure flux
Posted by TomA (more from TomA) on Tue, 17 Aug 2004 09:38:49
In Reply to: fuel pump pressure flux, tracstarr, Tue, 17 Aug 2004 09:16:49
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I have a CSE, but haven't looked at it all that much yet. Consider this...
> Try measuring fuel pressure with engine not running. Does the fp run for only a few seconds? If pressure is stable when engine is not running, then problem is due to a dynamic, rather than static operation.
> Isn't there a vacuum hose going to fuel pressure regulator on the fuel rail from the intake manifold? Make sure that vacuum hose has no leaks. If you see any cracks in it all, replace it. I've seen this make a HUGE difference on other cars.
> Does this vary at all with how full the fuel tank is. I'm wondering about the helper fuel pump, unless of course you replaced both.
Good luck.
posted by 192.61.219...
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