Question about my VP44

[Rather Be Wheeling]

Hello,

 

So I went to run an errand with my 01 earlier after washing it and it fell on its face while driving down my street. Had a random speed sensor code that I cleared, but it wouldn't shut off even with the key pulled. I'm assuming it's the VP but I'm trying to find different opinions on the matter. I let it sit for 30 minutes and started it back up no problem. Everything came back to life. Turned it off again and re started it 20 minutes later and everything is fine. The pump is barely 2 years old and I'm reading 15 psi on my FASS. Any help would be appreciated.

[dripley]

Did you check for trouble codes?

[Rather Be Wheeling]

I did. I only had a rear speed sensor which I replaced like 600 miles ago. Everything else of my scanner was clear. No injection codes or anything like that

 

 

Sad thing is I only have 6000 miles on this pump and the 2 year warranty expired yesterday. Horrible timing

 

I was able to upload a video I took of it. I already emailed thoughbred and hopefully they can still honor the warrenty. We shall see 

 

Edited September 5, 2020 by Rather Be Wheeling

[dripley]

Might not be the pump. If you turn the key off you kill power to everything and the pump should not run. Maybe a problem with wiring? Turbo timer on the Quad? Might want to disconnect it and see if it might be the quad. No codes makes the problem a bit of crap shoot. I wouldn't want to throw an $1100 pump at it without some more trouble shooting. 

[hdpwipmonkey]

If the Quadzilla Adreneline is on level 1 (valet mode) it will fall on its face like that.  Also if the turbo timer is on it will keep the truck running for a set amount of time or till the EGTs reach a certain temp when you turn the key off.  

[Rather Be Wheeling]

My V2 tune is on level 3 out of 5 on a medium tune. I'm assuming I have the turbo timer set. I started it a few times after it was fully warmed up and it was fine. Waited 20 minutes and started it up again and it took a good 3-5 seconds to start. And it feels like my idle has a minor miss, or it didn't idle like it usually does. I'm going to go over all my grounds on Sunday (had to take one of my other trucks for tomorrow) and unplug the quad and see if anything changes. If it doesn't then I'm pulling the pump 

[hdpwipmonkey]

5 minutes ago, Rather Be Wheeling said:

...unplug the quad and see if anything changes.

Yep, that's what I'd suggest. 

No other codes after clearing the speed sensor code?

[Rather Be Wheeling]

1 minute ago, hdpwipmonkey said:

Yep, that's what I'd suggest. 

No other codes after clearing the speed sensor code?

 

None that came back. I thought it was super weird I got a speed sensor code though. I haven't spun the tires on it in a while and I just replaced it 600 miles ago as it is

[JAG1]

Are you adding lubricity to the fuel to keep the VP44 healthy? Also the fuel pressure needs to stay above 14 even under hard pulls and excessive heat. If it's dropping below it's a slow death to the VP.

[Rather Be Wheeling]

1 hour ago, JAG1 said:

Are you adding lubricity to the fuel to keep the VP44 healthy? Also the fuel pressure needs to stay above 14 even under hard pulls and excessive heat. If it's dropping below it's a slow death to the VP.

 

When I first got my diesel I didn't put any in because I didn't know about adding lubrication to the fuel system. I've been running Howes it but I think I'm going to try something new. Any suggestions?

 

And it barely drops under 14 at WOT -  around 1500 on my egts

[JAG1]

51 minutes ago, Rather Be Wheeling said:

 

When I first got my diesel I didn't put any in because I didn't know about adding lubrication to the fuel system. I've been running Howes it but I think I'm going to try something new. Any suggestions?

 

And it barely drops under 14 at WOT -  around 1500 on my egts

2 stroke oil is the best. Scoring tests shows it is effective on an injection pump that was designed for the old higher oil, more lubricating fuels.

 

On the fuel pressure you need to always stay above 14 so you get max cooling with the fuel return flow carrying away the heat, at 15 I start to cringe. Mostly keep it above that, but try not going above 19 or 20 at idle

[dripley]

TCW3 two stroke oil is very good additive. 1oz to the gallon. l use use super tech from W M. Other brands will work just as well.

[Rather Be Wheeling]

On 9/5/2020 at 11:33 AM, dripley said:

TCW3 two stroke oil is very good additive. 1oz to the gallon. l use use super tech from W M. Other brands will work just as well.

 

 

I'll definitely be buying some of that thank you ? 

 

So update; pulled the pump and the woodruff key was smashed one one side and flattened, so it needed to come off anyways. Sending the pump back today and going from there

[dripley]

You can just replace the key. The key number is on the pump name plate I believe. I know it's  on the pump somewhere. Surprised you did not have issues since install. That key is really smashed.

[Rather Be Wheeling]

17 minutes ago, dripley said:

You can just replace the key. The key number is on the pump name plate I believe. I know it's  on the pump somewhere. Surprised you did not have issues since install. That key is really smashed.

 

 

I'm curious what those issues would be. It's always been a little sluggish for all the parts I have on it. And I always thought it was a turbo/air in fuel line type deal. Everyone says it should be waaaaaaay faster than it is. My idles always been a little crappy as well

[dripley]

That key is not only to hold the gear and theshaft of the pump together. It's other big job is to align the pump for timing purposes. As squashed as your is it surprises me you have not had issues prior to this. Your timing would definitely be off. If the slot is not damaged you should be able to install a new key but it has to be right one. The key # is on the pump. I have put 2 pumps on mine and verified the number on both of them. The key also has an arrow on it for intsalling it in right direction. The keys have slight offset on them to get the pump timing right. They figure all of that at the rebuilding facility while its on the test bench. 

That smashed key is an instalation error. I dont think any one will warraty it. But who knows.

As far as what the timing being off will do depends on whether its retarded or advanced the timing. I would defer to smarter than me folks for an answer to that. 

[Rather Be Wheeling]

I've definitely had issues since I put it on. Once it's set correctly with a new key I'll be able to see what it changes.

 

And that key was horrible to extract. They told me to take that thing out and chuck it before I sent it. I'm pretty good with stuff like this but in the end I had to notch each side of the smashed key perfectly and pull it with some ear clamp pliers. They said they'll put the right key in it so I'll double-check it when I get it back. Thank you

Edited September 8, 2020 by Rather Be Wheeling

[dripley]

Be sure and check # to the pump and there is an arrow on the key but I cant remember which way it faces, towards or away from the pump. I am assuming that "they" are Thoroughbred. They should know.

[Rather Be Wheeling]

Yeah thouroghbred. And I'll double check it when I get it back. I sent it out this morning