Engine/Transmission (1998.5 - 2002) 99 Will not start

[Hasman06]

Guy I know has a 99 24v that had alternator/charging system problems, would not charge at all. I found the main 140a Alt/chg sys fuse blown. He also wanted me to adjust valves on the truck. Truck ran in the shop. I adjusted valve clearances to within specs while I waited on the fuse arrival. After installing the fuse and adjusting valves, the truck will not start, codes 1693 and 1688 came up immediately... VP44?? Guy ran the truck for a while, by charging batteries all the time and then running the truck till battery voltage was low. I'm wondering if the low voltage may have harmed the lift or vp44 in some way, but also if there is something I did while adjusting the valves. I have 11 psi after the filter, and all wire connections to the vp44 are tight and undisturbed as far as I know. No boxes on truck, completely stock, 140k miles. Any info appreciated.

 

[ProspectorTim]

With those codes, maybe it was just looking for a good place to die?
If he drove it iin, then there is no tow bill!

11 PSI after the filter is ok; 15 would be better. Crack an injector line and see if fuel comes out.

 

[SethA]

my truck had that code and i had good lift pump pressure, and even could get some fuel out of the injector lines but it was the vp44 it wouldn't even try and start

 

[Hasman06]

Tried opening up the lines at the injector tubes (3) had a small trickle out of 1, the others stayed dry.

 

[Hasman06]

Ok, at the point where I need to purchase a pump, where should I go for the best price/service??

 

[blacksheepdiesel]

Not necessarily the VP44. Had a friend whose 2002 would not start. Finally figured out it was a loose wire somewhere.

There is a thread that describes how you can take the connector off the VP and jump two wires to it and see if it will start which is the Cummins procedure. I would do that first unless you have your heart set on a new pump.

https://www.turbodieselregister.com/forums/showthread.php?t=74018

Follow the #4 post for hooking up the wires.

Godspeed,
Trent

 

[Hasman06]

Didn't actually run that test with jumping wires, but I have 12v and ground present at the pump... (6-, 7+) Surely this test just verifies this?

 

[blacksheepdiesel]

It could be that even though you have 12v and ground present at the pump that corrosion, bad connection will render it useless. I would go ahead and run KNOWN 12v and ground to those terminals just to make sure. You would be really ****** if you put a new pump on and it didn't work either.

Godspeed,
Trent