Engine/Transmission (1998.5 - 2002) Please help...can't start after new VP44

[ENafziger]

Hello!

I usually hang out in the 3rd gen section, but my brother is needing some help.

He has a '99 Cummins NV4500 with a BlueChip and Edge. Recently, he put a Walbro lift pump on the truck as the old pump would pull down to 0 psi at WOT. The new lift pump maintains 18 psi.

A few weeks after this, the VP44 started going out. Finally, it would only run at an idle, and wouldn't run with any above that. He bought a reman VP44 off Craigslist, and we installed it.

Now, we can't get the truck to start at all. We cracked the injector lines and have cranked and cranked and cranked... literally for over 30 minutes of time. Line 4 has fuel coming out. Every now and then fuel will spurt just a little from one of the other lines.

We bypassed the lift pump to let it run with the key off. We let it run for 2 hours straight with the lines cracked, turning the engine over a little every 15 minutes.

The truck will not fire at all. We bypassed the clutch switch and drug the truck down the road about 5 miles. Again, nothing.

Any suggestions? We've checked all fuses, and they're fine. I'm positive we timed things correctly when putting the new pump gear on. Even with the old pump bad, it would still start and idle. With this pump, nothing.

Help!

Thanks, Eric

 

[hcole]

Eric, go to Blue Chip Diesel Performance Specialists and click on diagnostics. It will tell you how to check your vp44 using terminals 6&7 on the plug on the pump. It tells about everything you need to know about checking the pump. Hope this helps.

 

[Bob Cochran]

I hate to be the one to say this but here goes. You got a bad pump but testing will verify this so you will know. I hope I am wrong.

 

[John - K5AWO]

as soon as I saw "craigslist" I got a cold chill. No warranty there I presume?

 

[ENafziger]

Thanks guys for the replies. I'm reading through the Blue Chip info right now. I have a sinking feeling that the pump we were sold is trashed If this really is the case, someone spent ALOT of time making it look brand new.

--Eric

 

[Joe Mc]

Eric - I hope it's something simple. But, Craigs List? I'd hunt that lousy B-stard down and castrate him if he sold me a NFG VP. Makes my blood boil just thinking about it.

Not trying to advertise for anyone but I feel your pain and wish to share that when my orig VP gave up I went w/
Bosch VP44 Dodge Injection Pump :: VP 44 Diesel Fuel Injection Pump

They were great folks to deal with. Looks like the price went down $40 since I did mine. That in itself is rare!

Hope you get it figured out and back on-line.

 

[ENafziger]

Well, wired the VP44 manually with a hot and ground directly from the battery to pins 7 and 8 on the pump. Still no start, and only getting fuel out of one line. It looks like the rotor is siezed and the pump is garbage.

Moral of the story... don't buy pumps off of craigslist!

Thanks guys, Eric

 

[hcole]

Sorry to hear this, Eric, but this happens sometime. I ordered my new VP44 from Chip at Bluechip and was pleased with the service. I paid extra for his X VP44 that is supposed to get 2mpg more. I think it does, especially in cool and cold weather. It does smoke slightly more on acceleration but I think the difference in price is worth it.

 

[Bob Cochran]

I think we all would be mad. Good buys on Craigs List but it is buyer beware. God I hate that term but true sometimes.

Eric I am sorry to hear this also.

 

[hsmith]

Be careful of "Craig's Scammers list". You are not the first or last to be bitten there.

Sorry about your misfortune.