fuel pump problems - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 5 (permalink) Old 11-30-2007, 02:21 PM Thread Starter
 
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fuel pump problems

ok ao what dose anybody know about how the injection pump changes the timeing and can that break or go to far inside the pump or something like that
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post #2 of 5 (permalink) Old 12-01-2007, 12:15 AM
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I guess your referring to the fact of early model VP44 pumps were known for failing from enhancement boxes. There was a problem with close clearances and burring problems that cause the rotor to seize up.

As for newer pumps there isn't much problems now... :

Just taking a stab here...

Michael Nelson - 2002 Dodge Cummins & 1996 Dodge Ram 5.9L Gasser
116K Miles On My VP44 - 4 Years of 2 Cycle Oil Diet! - Mixed at 128:1 Ratio - 25.3 MPG maxed out!
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post #3 of 5 (permalink) Old 12-05-2007, 02:17 AM Thread Starter
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no im just trying to figure out wat is up with my truck i have the pump off it didnt break the key and the pump looks fine i need some ideas
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post #4 of 5 (permalink) Old 12-05-2007, 02:45 PM
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Well since you got it of you could take it to a Bosch dealer and have it bench tested and see if it failed...:

I'm quite shocked you puled the VP44 off the engine...:shrug:

Michael Nelson - 2002 Dodge Cummins & 1996 Dodge Ram 5.9L Gasser
116K Miles On My VP44 - 4 Years of 2 Cycle Oil Diet! - Mixed at 128:1 Ratio - 25.3 MPG maxed out!
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post #5 of 5 (permalink) Old 12-05-2007, 11:06 PM Thread Starter
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there not that hard to take off as a matter of fact i have the hole front end off the gear that the pump gose on was messed up so i pulled the front cover off its not that hard to do just a few bolts
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