

| Subject: | Re: ARG! HELP! fuel pump problems |
| From: | David Beierl |
| Date: | Thu, 16 Jan 2003 10:54:22 -0500 |
At 10:44 AM 1/16/2003, Greg Marshall wrote: >I have the metal filter after the tank, Dunno whether a clog there would make the pump whine -- if so it would be from overload and not cavitation. Dunno whether the pump could burst the filter element if it were seriously clogged. >and the fuel tank is brand new, so I >wouldn't think that contamination would be the problem. Who knows what evil lurks in the hearts of new tanks... > One thing I did notice >when changing the lines, was that the plastic coupler that stepe up the line >size to the pump had a small crimp in it. I didn't think it was a big deal. Doubt if it is -- it would have caused trouble from the start if so. >Could this be restricting flow to the pump? If so, where can I get one of >these? Sorry not to be more helpful -- but you either have an input clog, an output clog, or a bad pump. You should be able to isolate which it is...any chance of ice in the system? Ah -- faint possibility that fuel pressure regulator is jammed -- pump would be working hard, mixture might very well go rich enough to affect performance. O2 sensor will show constant > 0.5v, ought to smell rich at that point, and possibly even a glowing cat... david -- David Beierl - Providence RI USA -- http://pws.prserv.net/synergy/Vanagon/ '84 Westy "Dutiful Passage" '85 GL "Poor Relation"
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