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Went To The Aid Of A Fellow Bomber
Just died on him
P1688 is the only code i could pull Replaced Fuel Filter , Cracked Line at VP44 Inlet , Pumping Fuel 12 PSI on FP gauge Post Filter , Will Fire on Either but soon Dies VP44 DOA was my Guess What do you think |
Read somewhere lack of fuel or fuel cavitation doesn't help VP's.
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I would crack 1,3&4 and try again b4 ya go fer a new pump
it dont sound good for the VP but try it eh |
Sounds like the VP44 is DOA.
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I got about 5 miles home and thought that , will talk to him tomorrow
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hmm my guess is vp go haboom
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Well check for, looks lines, mine did the same thing and it was a 20c clamp, near the tank and it was sucking more air than fuel. Had good fuel psi at pump, new filter, etc. Crack lines and see whta happens.
chad |
Originally Posted by DieselMinded
(Post 144463)
Just died on him
P1688 is the only code i could pull Replaced Fuel Filter , Cracked Line at VP44 Inlet , Pumping Fuel 12 PSI on FP gauge Post Filter , Will Fire on Either but soon Dies VP44 DOA was my Guess What do you think P1688 (M) Internal Fuel Injection Pump Controller Failure Internal problem within the fuel injection pump. Low power, engine derated, or engine stops. VP44 is DEAD!!! Ether is just cheating the fuel system. Like on our military fire truck of the fuel cutoff is pulled the engine will still fire on ether for a short run and then die as well... DieselMinded you know better not to use ether on a Dodge with grid heaters don't you??? Or at least pull the grid heater leads before using... |
pulled grid heater
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Whats the diagnosis?
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