I found fuel pooled in my intake manifold - normal? - Saab 900 Bulletin Board - Saabnet.com
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I found fuel pooled in my intake manifold - normal?
Posted by brian h [Email] (more from brian h) on Wed, 10 Mar 2010 16:20:40
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I'm having trouble with my '88 900S (see summary below) and while checking on the NTC (water temp) sensor and cleaning some contacts I noticed there was fuel pooled in my intake manifold behind the throttle body. I could see it if I pulled out the vacuum lines in the squarish area before the manifold splits into the individual runners and heads toward the injectors. The car has been sitting, untouched for at least a week. It actually appears to be UPHILL from the injectors, so I can't imagine they are responsible. Can the fuel pressure regulator (FPR) be responsible? Is this normal?? Why/ how could fuel be pooling in this location?
Here's my symptoms from an earlier post:
I have an '88 900S 16V with 160k. Here's the chain of events. On a recent trip it returned poor MPG, then started stumbling on acceleration, then faintly misfired at cruising speed.
Prior clues were IMMEDIATE cold firing(engine would catch before it had turned over 1/2 a revolution) when car was cold with some rough running and black smoke, then hard starting (long cranks) when engine was warm.
Once home, I put in new plugs, wires, cap + rotor, and fuel filter w/ fresh gas. I cleaned every ground I could find. battery has been tested as well.
posted by 71.233.245...
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