wpy2080
New member
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- Chicago, Illinois
1994 M998, 6.2. Last spring had Stanadyne IP rebuilt by factory dealer. After new IP, ran great all last summer. This spring, ran no issues for a month or so until today. Driving for about 5 minutes and it completely shut off. Pulled over, started again with heavy white smoke, ran for 2 minutes and it died again. Towed it home and let it sit. Put in new fuel filter and bled with bleeder screw. cranked for a few minutes and it started, ran for 5 minutes at idle and then died again. Cranked with incoming fuel line off (To the filter) and getting strong fuel flow to the fuel filter and from the fuel filter. I connected a clear hose to the IP fuel return line and cranked. THe IP return line had a lot of bubbles and air and once the fuel reached the front (drain) side of the IP return line, the HMMWV started again for about 5 minutes and then died. Next i cracked a few Injectors and cranked and no fuel to the injectors...
I'm all ears... .
Forum research has lift pump as a potential issue, maybe a bad IP, could GPC be an issue, better air bleed? I have the yellow banded KDS with black control box that has bright green KDS label (Seeminly common combo)... [Located near Traverse City, Michigan]
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Forum research has lift pump as a potential issue, maybe a bad IP, could GPC be an issue, better air bleed? I have the yellow banded KDS with black control box that has bright green KDS label (Seeminly common combo)... [Located near Traverse City, Michigan]