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Joe Bob Joe Bob is offline
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Join Date: Jul 1999
Location: BOULDER Colorado
Posts: 39,412
Garage
Sounds like more than one problem....Warm Up Regulator, Fuel Pressure and maybe the check valve that screws into the head of the fuel pump.

WUR is the likely culprit on warm up....as well as the cold start injector....

Hot start could be fuel bleed off caused by a missing or worn out check valve.

The fuel pressure should also be checked. CIS likes a LOT of pressure. Less likely but also a culprit would be the accumulator...bring bucks for that piece....

Good Luck.
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1983/3.6, backdate to long hood
2012 ML350 3.0 Turbo Diesel

Last edited by Joe Bob; 05-03-2004 at 02:37 PM..
Old 05-03-2004, 02:34 PM
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