Lift pump out on the 04

[barbwire]

Driving along when it started to sputter. Pulled off to the side of the road to change the fuel filter. It died . Changed the fuel filter, bumped the starter to prime, nothing :{ Anyway, when I called the Chrysler dealer, I told them that these codes came up- P0628 & P0483. They didn't have a clue as to what they were. Do any of you guys know what they are?

Had it towed to the dealer, and they diagnosed it as a bad lift pump. Said it would be a day or two to get the pump, as it is a star part. I told them that I wanted to buy one to carry along with me. They didn't know if they were available to buy yet. Again, does anyone know better than that?

Final issue. They told me that they do not know if the injection pump went out, and that they will not know untill the lift pump is in. Here again, is there anyway to know if the inj. pump can be diagnosed before the lift pump is put in?

My truck is what makes my living, and I need it very much!

 

[mattymac]

0483 is cooling fan rationallity/malfunction.

0628 ?



Hope all will get better.

 

[mberry]

P0628 Fuel Pump Relay Circuit Low, or Fuel Lift Pump Control Circuit Low

 

[robert4570]

barbwire,

Sorry about the lift pump failure on your 04. If you get a quote for the pump for an 3GEN please post it.

By the way are you runnin' stock ?

 

[RonsRig]

Have you been buying your fuel in Canada?

 

[barbwire]

Robert4570, I will post when & if I find a price. I will try a Cummins dealer as well, when I find time. And yes it is still all stock.

RonsRig, I find that going into Canada is a royal PIA for what I do, so I do not go up there at all. Why do you ask? Have they been having trouble with their fuel?

mberry, do you suppose that the low circuit is a possible cause for the failure?

Thanks Mattymac, I do not know what to think of the cooling fan malfunction, I have not had the vehicle overheat as of yet.

 

[Joseph Donnelly]

I have a new lift pump for a 2004; let me know if you don't find one locally.

 

[barbwire]

Joe, may I ask how you aquired yours? Was it through a dealer?

 

[barbwire]

BTW Joe, are you healing up nicely? I was surely sorry to hear of your misshap. Life is to short to be bunged up.

 

[rbattelle]

I actually agree with the dealer that the CP-3 can't be diagnosed until the new LP is installed. Whether the CP-3 is bad will depend on how long it was fuel starved. You might be okay.



From my PDM, P0483 = Fan Speed.

P0628 = low voltage detected at the fuel lift pump



Not sure how fan speed rationality is affected by the LP...

 

[barbwire]

Rbattelli, The code for the fan speed could have been there before. I just never checked for codes untill it died. What detrimental effect do you suppose that irrational fan speed will have?

 

[rbattelle]

Rbattelli, The code for the fan speed could have been there before. I just never checked for codes untill it died. What detrimental effect do you suppose that irrational fan speed will have?

Well, to be honest, I don't think it would have any particular bad effect unless you also noticed that the fan was always on or the truck was overheating. But that fan code would set a check engine light, I believe, so I think you'd have noticed it earlier.



If this were my truck, I'd fix the LP first, then after the truck is driveable again pay attention to the fan noise and the coolant temperature. It's always possible that the fan code was just a "bug". Or, you're amazingly unlucky and had your LP and your fan clutch fail at exactly the same time. Did you also get struck by lightning when you exited the vehicle? [Just a little humor to lighten your mood ]



There's not really any way for them to "test" the CP-3 other than to check that it's putting out pressure. How many miles do you have now?



-Ryan

 

[Mad Bomber]

Lp

This sounds alot like the problems we have with the 98. 5 to 2002. Here we go again

 

[robert4570]

Hopefully not again, not a continuation of the 2 gen trucks with the lift pump failures. I am hoping this is an isolated incident and a pattern w/ the 3 gens ,I haven't taken delivery of my 05'.



99 3500 CTD auto 2wd

05 on the way.

 

[barbwire]

There is 64,000 on the rig. Not to bad for an 04 huh! Yep , struck by lightning , fell in a well, ***** at & hit.

Hey guys, thanks for all the replies. I'll keep you posted, so the situation will be recorded, for everyones future reference.

BTW Ryan, would you be able to tell me if the CP-3 can go out partially, and thus I would lose some mpg? or is it a situation where it either works or it doesn't? I would hate to lose my mpg, as it was pretty good. I was making 16-18 pulling a 24 ft. flatbed when it was empty. Loaded to a 4 tn average14-15 mpg. Over 20 with no trailer in tow.

 

[rbattelle]

There is 64,000 on the rig. Not to bad for an 04 huh! Yep , struck by lightning , fell in a well, ***** at & hit.

Hey guys, thanks for all the replies. I'll keep you posted, so the situation will be recorded, for everyones future reference.

BTW Ryan, would you be able to tell me if the CP-3 can go out partially, and thus I would lose some mpg? or is it a situation where it either works or it doesn't? I would hate to lose my mpg, as it was pretty good. I was making 16-18 pulling a 24 ft. flatbed when it was empty. Loaded to a 4 tn average14-15 mpg. Over 20 with no trailer in tow.

Well, thinking about it logically it might be possible for the CP-3 to go "partially" bad. If the seals on the rotary pistons were to wear out (due to inadequate lube, for example), the pump simply wouldn't produce enough pressure and fuel delivery would suffer. This would likely manifest itself as an improvement in fuel economy. However, the system has a check in it using the rail pressure sensor - if the ECM requests a given pressure from the CP-3 and it can't deliver, a DTC is set. We know that wasn't happening to you. Your MPG numbers seem pretty consistent with a 2wd truck.



I want to believe the CP-3 is a robust design and could tolerate a low fuel supply problem for a long time before going bad.



-Ryan

 

[DPelletier]

There is 64,000 on the rig. Not to bad for an 04 huh! Yep , struck by lightning , fell in a well, ***** at & hit.

Hey guys, thanks for all the replies. I'll keep you posted, so the situation will be recorded, for everyones future reference.

BTW Ryan, would you be able to tell me if the CP-3 can go out partially, and thus I would lose some mpg? or is it a situation where it either works or it doesn't? I would hate to lose my mpg, as it was pretty good. I was making 16-18 pulling a 24 ft. flatbed when it was empty. Loaded to a 4 tn average14-15 mpg. Over 20 with no trailer in tow.

I'm no expert, but I offer the following for your consideration;



- lift pumps have been a relatively common failure '03-'04. 5 and I have yet to hear of a related CP-3 failure which leads me to believe that the CP-3 is nowhere near as sensitive as the VP-44 to lift pump failures. Does anybody have any additional info?



- No the CP-3 could not be tested until after the lift-pump was replaced. I would imagine it would be a pressure test and I THINK that it either works or doesn't (i. e. the ECM would see a low pressure code if under the preset limit?)



- Joe, what are the lift pumps worth, ballpark?



- The '05's have a completely different lift-pump set-up, so I think the jury will be out on them for a little while yet.



Dave

 

[RonsRig]

Barbwire,

I have seen on this and other forums reports of lift pumps going out and someone pointed out the most of them were Canadian. I have been making mental notes to my self whenever I see posts like this to see if there is a trend. Recently there have been 3 threads dealing with lift pump problems and 2 of them were Canadian and then there was yours. I questioned you because you live close to Canada and I thought you might be getting fuel from there. I am surprised no one else brought this up. I guess the fuel North of the border doesn't have the "lubricity" sp. US fuel has.

 

[barbwire]

Just thinking about it............

Barbwire,

I have seen on this and other forums reports of lift pumps going out and someone pointed out the most of them were Canadian. I have been making mental notes to my self whenever I see posts like this to see if there is a trend. Recently there have been 3 threads dealing with lift pump problems and 2 of them were Canadian and then there was yours. I questioned you because you live close to Canada and I thought you might be getting fuel from there. I am surprised no one else brought this up. I guess the fuel North of the border doesn't have the "lubricity" sp. US fuel has.

A person would think that with the extreme temp. variation, that the Canadians would have a better lube package in their fuel, than say the lower 48. But who knows, maybe you are right. And again, maybe the fuel we get in this part of the country comes from Canada. It would not suprise me at all.

 

[rbattelle]

A person would think that with the extreme temp. variation, that the Canadians would have a better lube package in their fuel, than say the lower 48. But who knows, maybe you are right. And again, maybe the fuel we get in this part of the country comes from Canada. It would not suprise me at all.

Is it possible the Canadians are running a mix of #1 and #2? That would explain the lubrication problem.



Dave,

I think a lift pump runs around $150 new from the dealer. I agree with you that there haven't been many CP-3 failures... fewer than lift pump failures. I remember reading about maybe 2 CP-3 failures since the beginning of the 3rd gen trucks.



LP failures and fears of bad fuel are why I'm doing this.



-Ryan