I just got a call from the dealer, my truck is done. They installed a new in tank lift pump and a vp-44. My fuel pressure is still less than 10psi at idle and can be pulled down to 2.5 under a load. I am a little p.o.ed but I have read here that that is about what people are getting. I have a recall pump and a vulcan fuel line kit waiting to be put in as soon as I get it home anyway.

But the thing that is bothering me the most is they said that the vp-44 they put on is the same for an s.o. as an h.o. I even talked to the mechanic who said he questioned it also but called dodge and they told him there was no difference iin them. I thought I had read here that the vp-44 was exactly what made the difference between s.o. and h.o. but I can't find it in a search.

Any input here would be greatly appreciated. I pick it up tommorrow morning.

 

They are different

I'm not an expert but I remember something about smaller plungers on the HO, maybe?

 

Ya that is correct, they are not the same at all. The HO pump has a smaller plunger, but sprays at a higher rate.

 

They are not interchangable as well. The programming for each is different. Whoever said that they were the same is wrong.

 

Will this set a trouble code or something? Because other than that I don't know what I can do. The dealership is telling me that their parts dept. says they are the same and the mechanic who did the job says he called someone at dodge who said it was the same. I am not sure where I go from here.

Although it sounds like I just got demoted to S.O. status with no recourse. I wonder if they will take my 6 speed away too.

 

Can you see what P/N they used? I found a post here where an auto 98 said his vp44 was Dodge P/N is R5013925AA, so that should be the SO VP44

 

I was supposed to pick up my truck this morning but I am going to stall till I can decide what to do. I will call to see if I can get the part number they installed

 

The 027 is a SO pump and the 028 is the HO pump.

 

^^^ referring to last 3 digits of P/N.

 

So the p/n Phatboy listed would not be correct for my truck? Does ayone have some way or thing I can use as proof when I call the dealer other than "Some guys on the internet told me it should be this......".

No offense to any of you helping me but you understand how that will sound.

 

I talked to the dealership. The p/n they installed is R5019357AD, They said the R signifies that its rebuilt, which is the only way they get them now. And the AD on the end is a suffix that signifies which level of update the part is. And the middle is the actual p/n. So I have no issue with it being rebuilt if that is the way they come, and if AD is the newest update I understand that number will be different but they still say there is no difference between the S.O. and the H.O. in number part of the whole p/n. They did not have the old p/n for me. I don't know why.

 

Update to my last post...

They called me back with the old p/n which is 470506028, which matches up to what MikeD said it should be, they also gave me a wrong number the first time for the new one, it is R5019657AD. They said it is not unusual for the p/n to change that much for a remanufactured unit.

Also gave me more good news. My Vacuum pump is leaking and is not part of the Cummins warr. How in the hell is a part that is causing an engine oil leak not part of the warr.? They told me the would replace it for me at dealer cost which was $1500 just for the part!

I told them to wait. I think I need to call someone at Dodge or Cummins or somewhere, that seems a little bit ridiculous. My truck only has 65k miles on it. and almost a year left on its Cummins warr.

 

the pumps are different... call Industrial Injection if you absolutely need the proof.

I'm not sure what would happen if you installed a S.O. pump on a H.O. truck. It would certainly affect the performance but I doubt it'd do damage. If you buy a HRVP-44 from Industrial Injection it is for all 24 Valve trucks.

 

Mac, It is a common occurence for the seal on the vacuum pump to take a dump. DC will sell you vacuum pump/power steering pump assembly and tell you that they do not have seal kit for the seals. That is not true. If you do a search on vacuum pump oil leaks in here you can find the part # for the seal kit. It's a cheap fix if you are mechanically inclined.... As far as being under warranty, call a local Cummins dealer to see if it is covered under theirs or DC's nickel.

Good Luck on it,

Gary

 

Thanks, I did a search on the vacuum pumps leaking. the only p/n I found appears to be a cummins p/n. I called the dodge dealer with it and they checked but it came back as no good in tehir system. Anyone have the dodge p/n or even know if dodge offers it as a separate kit? Could it be just a cummins kit?