24 Valve 2nd Gen Dodge Cummins 98.5-02 Discussion of 24 Valve 5.9 Liter Dodge Cummins Diesels with VP44 Injection Pumps
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Need help truck won't start vp44?

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Old 05-24-2012, 05:35 PM
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Default Need help truck won't start vp44?

Truck was driving fine, it sat for about a day. I started it in the morning an it started up normal and ran good for about 30 seconds and then it started sputtering and stalled. Can't get it started now. Replace the fuel filter and my lift pump is fine but I'm not sure and I hope its not my vp please help me. Any help is appreciated I don't understand how my vp44 would just go in a day after working fine. Thanks in advanced
 
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Old 05-24-2012, 08:02 PM
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Do you know your fuel pressure?
 
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Old 05-24-2012, 08:15 PM
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Crack you injectors I think a 3/4 wrench fits em, thats how 60% of them pumps go, they just give up and say bye bye. Are you sure your fuel pump is good, and how often do you change your filter, an old filter will restrict flow to the Injection Pump. I learned after today that 15K Miles is not a suitable point to change my Fuel filter, made a world of diffrence...
 
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Old 05-24-2012, 11:43 PM
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Well I have a fuel pressure gauge but it doesn't fit on my truck after the snubber valve and banjo bolt and sending unit so I never put it on. Other than that I don't know how to check my fuel pressure. Any ideas? I cracked my 1 3 and 4 injectors and very little fuel came out of the #4 line. I'm going to crack all 6 tomorrow and see if anything comes out of any of them. As for my pump since I cannot check the fp I drained my filter housing and bumped the starter and it filled back up so I am assuming my lift pump is still fine. And I changed my filter yesterday hoping it would fix it but maybe I'm too late. Thanks guys
 
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Old 05-25-2012, 02:48 AM
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If your pump is bad you cant get pressure to prime the system back up...so there fore no start no fuel to the lines.
 
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Old 05-25-2012, 07:57 AM
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But would my pump just go like that in 1 day ?
 
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Old 05-25-2012, 08:21 AM
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the injector lines that show fuel tighten them down the do the bump starter again, keep doing this till all 6 are primed and tight.................start the truck
 
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Old 05-25-2012, 10:27 AM
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I'll try that today thanks whit I never thought to do that
 
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Old 05-25-2012, 11:46 AM
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I have a buudy where his truck ran one minute, and he turned it off went to start it back up and the pump died on him, if you can get and OBDII scanner and see if theres are any codes...
 
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Old 05-25-2012, 12:04 PM
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Darn. I hooked my obd2 scanner up but it wouldnt read alot of the systems just the ECM so I tried the key trick and it didn't show any codes either. Should I try a better scanner or can I trust the key trick?
 


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