Vehicle Stalled

[Mike Wenrich]

I already have the in-tank pump and it's working okay. The problem is the engine mounted injection (high pressure) pump. So I'm not sure how the retrofit differs from what I have. The truck is completely stock and there seems to be a change in the way Dodge/Cummins built the 2004.5 (325HP from the 2004 305HP. The repair shop also said the computer is working which also could have been a cause for this failure.

I've never had an issue with this truck until now. Been wondering how long the trans will last and the injectors but so far it runs strong. Got a howl in the trans when cold but it's shifting well and as it warms up the howl diminishes. Many on this forum have a lot more miles and these parts hold up well. Now have a slight vibration at 60-65 MPH but it might be tires. Drive shaft joints feel good but at 150k ???? What next? I don't mind spending some bucks on it as it has not been a problem vehicle. Like my 2014 was. Happy I kept it. And...I got to talk to a lot of my neighbors while I was directing traffic around it until the tow truck showed up. Most offered to help. Restores faith in people.

 

[AH64ID]

The price you were quoted does not sound like a CP3. Even reman CP3 are hundreds more, quality remans are more than 2x that cost.

So if the CP3 needs replaced, I would not go with an off brand pump. One of the big injection companies or a stock Bosch unit.

I have not heard of Precision brand injection pumps, just lift pumps. The carter pump you referred to is also a lift pump, not the injection pump... hence some confusion on what you need replaced.

It's not really common for the CP3 to intermittently quit. That kind of failure is more of a lift pump failure.

What codes were still showing when you dropped it off?

P0148 can have several causes such as LP, CP3, Injectors, HPRV, or sub-componets of the CP3.

 

[Mike Wenrich]

Same codes as listed above the 0628 code is Fuel lift pump control circuit low. And the 0148 Fuel delivery error. I was suspecting the block pump (CP3?)as the in tank pump is working. I was able to restart the engine by cycling the key to get pressure back and drive it around the block but when I tried to pull a hill to get into town it failed, just like when I was driving home last week up a hill. So I suppose it could still be the in tank pump but there was fuel in the filter housing when I changed the filter which made me think it was something else.

 

[AH64ID]

Fix the P0628 first and see if the P0148 goes away since the P0628 could cause the P0148.

You most likely have a LP related issue, not a CP3 issue.

I would call the repair shop and find out exactly what they are replacing, because the information you are relaying is not matching what you are thinking the issue is.

P0628 is a voltage supply issue to the LP, so relay or relay control board. That's not likely to be fixed by replacing the pump. I'd start with the simple things, like a new lift pump relay.

 

[Mike Wenrich]

I will update this post when the issue is resolved, hopefully without parts at it. I know they called a tech line to get into the computer but don't have the particulars to know how they determined its the pump. But I'm also kinda at their mercy since the truck won't run. Can't drive it elsewhere and it's already been towed twice. I'm a long way from a competent RAM dealership too. But thanks for your input on this. I guess I hope they are right in this case.

 

[AH64ID]

I will update this post when the issue is resolved, hopefully without parts at it. I know they called a tech line to get into the computer but don't have the particulars to know how they determined its the pump. But I'm also kinda at their mercy since the truck won't run. Can't drive it elsewhere and it's already been towed twice. I'm a long way from a competent RAM dealership too. But thanks for your input on this. I guess I hope they are right in this case.

But which pump are they replacing? You think it's the high pressure CP3, but the brand you listed makes lift pumps. The price is not high enough if it is a CP3, so it behooves you to find out before they do the repair.

 

[Mike Wenrich]

I just know it's the one on the side of the engine. Not the in tank pump. If there is not another pump on the side it must be the CP3. But I will ask.

 

[AH64ID]

I just know it's the one on the side of the engine. Not the in tank pump. If there is not another pump on the side it must be the CP3. But I will ask.

Let us know what they say, and I would find another brand if that’s the case. That won’t fix your P0628 thou.

I wonder if the shop doesn’t realize the LP is in the tank…

 

[p-Bar]

When the retrofit is done by the dealer the filter mounted lift pump is removed. A relay was installed on therfirewall drivers side.

 

[AH64ID]

When the retrofit is done by the dealer the filter mounted lift pump is removed. A relay was installed on therfirewall drivers side.

And that relay could be causing both codes...

 

[p-Bar]

Yes

 

[Mike Wenrich]

Well if all goes well it is fixed. The problem, besides my not knowing the nomenclature and design of my system, is that my truck does NOT have an in tank pump. It has the lift pump located below the filter and that is what failed. I thought it had the in tank pump and I apologize for stating that earlier. The noise I heard the pump make made me believe it was coming from the tank and working. No retrofit has been made on this truck and the owner of the shop said he has seen a lot of different systems on different years of our trucks depending on build date. Some with in tank pumps. 03's with the lift pump on the side of the engine, etc. He also mentioned that the codes can be activated by an internal short (ground) which could make the pump work intermittently and might explain why I was able to restart after several tries. When that happens you cannot reset the code until the short is repaired. He also mentioned that to run the tech call the engine must be in a no start condition. Since the engine would start and die they had to cycle until no start and then run the scan. That determined the computer was okay and only left the pump as suspect number one.

I drove the vehicle seven miles home, up a mountain and down with no issue. So I believe it is repaired. The new pump comes with a new line from the tank to the pump and that was installed as well. The line can develop a leak and affect the pick up of fuel so I'm told. Also mentioned was that the new pump looks identical to the original except for the brand name and has a lifetime warranty. For what that is worth. I will be driving this 45 miles tomorrow to a larger city (hopefully) and back. I will report if there is an issue arises. Also, anyone wishing to do theirs, they removed the left front wheel and inner fender panel to get to it and charged 90 minutes labor. I can't even see the pump from above. Long metric allen wrenches required too.

 

[AH64ID]

Glad to hear you up and running, too bad you spent money on another engine mounted lift pump.

The FSM doesn’t call out the pump as a possibility for P0628, probably based on how it monitors voltage, but the FSM isn’t all knowing and hopefully that was your issue.

I dread things with a lifetime warranty, as it seems you’ll spend a lifetime replacing them.

 

[p-Bar]

If I were you carry an extra one with you. Glad you got it fixed and know a bit more about your truck. My filter mounted pump on my 04.5 lasted about 70k and failed.

 

[Mike Wenrich]

Good grief I hope the new one lasts longer than that. Another 18 years and 150K on mine is enough to last me until I time out. Actually I would be lucky to make another 10 I think. I'll keep paying for tow insurance just in case.

 

[Darkbloodmon]

I'll keep paying for tow insurance just in case.

Not sponsored by AAA since I work for them but..... "Plus RV" level for 2500's and up no trailers, "Premium RV" for 2500's and up with trailers.

Just towed a 06' 2500 today from Oklahoma visiting family in South Carolina for the holidays, Starter that had been replaced prior to the trip failed and started grinding and not engaging.

 

[Mike Wenrich]

Good to know since AAA is the company I use. I need to check into how many times I can use the tow service per year also. My wife has a card as well that she pays for so I can double up if I have to.

 

[Darkbloodmon]

Good to know since AAA is the company I use. I need to check into how many times I can use the tow service per year also. My wife has a card as well that she pays for so I can double up if I have to.

4 service calls a year, could be 4 tows, or 4 jumpstarts/lockouts/winch outs/tire changes/battery installations.

Premier level gets you a single 200mi tow, and three 100mi tows.

 

[Mike Wenrich]

I know I have the 100 mile tow that I pay more for so not sure what level that is in CA but this is the first time I have used the service in 20 years. Been a member since 1992. I also have my daughter on the plan and that is more important than my subscription. Hate to admit to this but this year I also locked my key inside the truck. Along with my phone. Had to go inside a Lowes to call for service. Fortunately I had the AAA card in my wallet. So for the first time ever I had to call to have someone open my truck. Took about 30 seconds for the guy to open it. Need to get a hide-a-key made. The key reminder chime no longer works unless the key is pressed in tightly. So I better keep this tow service activated. My old age memory gaps are widening.

 

[Mike Wenrich]

Drove the truck yesterday on the same loop where it failed and it worked flawlessly. Couple notes that might have been precursors to the failure. I noticed lately when starting it was taking a little longer to light up. Also when shutting down before completely warm it was spinning the starter for a couple seconds before starting. Another thing was...and this might be my imagination...the truck did not seem as powerful as before. Nothing really bad but just did not seem as peppy. I was beginning to think that maybe the starting and seemingly lack of a little power that maybe I had an injector leaking. Since the repair it starting and running like before this issue. Don't know if the power thing makes sense. Seems if you have fuel and it's running under load you might notice a hesitation or miss from a lack of sufficient fuel. Thought I would post these items in case they have some valid use for someone experiencing the same issues.