Question about 1998 Dodge Ram 2500 2WD

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The truck is hard to start once parked for a while and once started it has a lot of white smoke at 2000 rpm in park what could be the cause of this it has a 5.9 cummins 24 valve fuel system

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Assuming you know the differance between "hard start" and "hydrolock" i'll ask if you know if you have a check valve no completely shutting off. Fuel can flow from the pump/head/inj lines back to the tank if the smallest of leaks are at the injection connector tubes. Those valves are at the back of the head at the drain/return line, overflow from the inj pump itself is usualy at the rear of the pump. If neither then where head/pump and return to tank lines come together above the lift pump only one check valve will be in a three way block. The mechanical lift pump has been known to allow air to enter the fuel supply only in a non running state and only in a paticular possition. You could have a tank vent tube clogged, hot fuel expandes in the tank and when cooled air cannot get in to equilize you will have a vacume. Hope this helps.

Posted on Dec 02, 2009

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Sounds like you have water entering the bores.Due to a slight leak from the head gasket.

Posted on Nov 18, 2009

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