Injector Pump Gone Bad.

[opiefire]

I took my truck in on thursday for torn door seals (driver and passenger) ,and a small fuel leak near the front of the engine. The service tech called me and told be the injector pump has failed and needs to be replaced. Does anyone know if the new injector pump is the same as the old pump that has failed? I asked the service tech and he didn't know the answer. I have 18,000 miles on my truck, bought it new in May of 2003.

 

[rbattelle]

Should be the same pump. Was the failure in a seal, or did the pump fail internally?



Anyone know if a place like Scheids can rebuild CP-3s and whether it's more economical than buying a replacement? I suppose I could call and ask them.



-Ryan

 

[rbattelle]

Just got off the phone with Scheid's. They say they have not touched a single CP-3, and are not equipped/trained to rebuild them. In fact, he said he wasn't sure if they were even rebuildable. He said they're too new so there hasn't been an opportunity to even look into rebuilding one.



He did say their techs have gone to Cummins' school on the new common rail engines, but they didn't cover pump rebuilding.



Oh well. I assume that eventually when the fleet gets older they'll add the CP-3 to their services.



-Ryan

 

[opiefire]

Ryan,

I just received a phone call from the dealer this morning, and they said that it looked like the seals were leaking. I asked if I could have the pump and he said that DC wants the pump back so they can "inspect" it. The Service tech I talked to also went on to say that I could expect to replace about 3 or 4 of these pumps during my trucks life? He said he replaces 6 or more pumps a month. He said the replacement pump is the exact same pump as the one that failed. He also said that the pump is covered under the 100,000 mile engine warranty. I am very glad to hear that, especially if I can expect to replace more pumps in the future!

 

[Buzzer]

This is interesting to me because my CP3 is leaking from somewhere but I can't pinpoint the location. The cam sensor connection is covered with diesel and it is running down the wire harness directly behind the power steering pump and occasionaly drips onto the ground. I have also talked to several other people this weekend who are also experiancing a leak. I wonder how wide spread this situation is.

 

[opiefire]

Buzzer,

My leak sounds very similar to yours. When I crawled under my truck the drip was comming off of the bottom of my steering gear box. At first I thought it was my gear box, but after looking closer I could tell it was comming from a higher point on the engine. The fan was complicating things by blowing the leaking fuel all over the place. I am not even sure where the injector pump is located.

 

[ESoloski]

I have already had two injector pumps replaced because they were leaking. The 2nd one just a month ago 33k on the truck. They had told me that they were leaking at the seam.



Ed

 

[whamby]

I found a few places on the net that can rebuld a Duramax CP3. Are these pumps similar? Both Bosch and both CP3??? I have not called them but they were around $600 if I remember right. I will search it out again and post a link.

 

[whamby]

OK I called a few of these places and they are just reman. pumps from Bosch not rebuilding them on site. Didn't the price yet though they would have to call. The Duramax pump is around $740 not $600. My pump leaks when it is in the single digits outside otherwise it is dry. It hasn't been that cold in a while here so I am pretty much screwed on a waraty fix. My warranty has 8500 left on it although since adding the BDDL it is pretty much shot I would imagine since it reflashes the ECM. I am going to run it till it quits and then look at a replacement.

 

[opiefire]

Whamby,

Just a thought... My truck is all stock except for the afe intake. There is no disputing that this particular injector pump is prone to failure. Have you asked about having it replaced as a warranty item? All they can say is no. My dealership told me it would have cost me $1,400 to have it replaced. I don't have a clue if that is a good price or not because it is under warranty, so I don't have to worry about cost. Would you be able to install it yourself? I hope you get many more miles out of your current pump! Take it easy.

David

 

[whamby]

I am going to ask them but I don't expect much. Mine is currently dry. It only leaks when it is really cold. (single digits) Then it has a steady drip. It doesn't get that way here very often and probably won't again this year. From what the dealers have told most people if it ain't leaking where they can see it leak it ain't getting fixed. STAR is getting pretty rough about getting replacements I guess. I couldn't get to the dealer last time it was leaking. I was working out of town in the middle of Kansas and didn't want to be down that far away from home while the new pump was ordered if they decided to replace it. Also you can find the pumps for in the mid 900 range from cummins and other places. Maybe even betting if you can get a direct jobber price. I will sure as heck try to replace mine if it ever goes out. I have the repair manual and it doesn't look too bad.

 

[joemyers]

This is just a thought FYI. A few years back the oil seal on my 89 inj. pump craterd and leaked a lot of fuel into my oil, I went down to Cummins to see about getting it repaired and found it was going to cost over $1200. 00 to R&R the pump for the repairs. I went home and set that sucker on TDC, locked it with the timing pin and pin punched and scribed everything. After that I took a few pictures of the orignal set up and the ripped that puppy out and took it down to a diesel shop. They charged me a few bucks for the seals and less than $60 to repair and bench test it. I put that baby back in and it is still working good. Now I know the new pumps are more complicated, but when you realize that most of that cost is R&R labor it gives you a lot of incentive. This is mainly for those of you who are out of warrenty. Damn, I felt good saving all that money, and I'll do it again with this 2000 if need be.



JMTCW

 

[Buzzer]

I am going to ask them but I don't expect much. Mine is currently dry. It only leaks when it is really cold. (single digits) Then it has a steady drip. It doesn't get that way here very often and probably won't again this year. From what the dealers have told most people if it ain't leaking where they can see it leak it ain't getting fixed. STAR is getting pretty rough about getting replacements I guess. I couldn't get to the dealer last time it was leaking. I was working out of town in the middle of Kansas and didn't want to be down that far away from home while the new pump was ordered if they decided to replace it. Also you can find the pumps for in the mid 900 range from cummins and other places. Maybe even betting if you can get a direct jobber price. I will sure as heck try to replace mine if it ever goes out. I have the repair manual and it doesn't look too bad.

Its really not hard to replace at all. Only special tool you need is a standard gear puller. Cummins even designed a cap for the gear so it was easily accessible for repair/replacement. I am just amazed though about how many people are experiancing this problem. You would think that with time they, Bosch, could engineer a better pump.

 

[DieselFiend]

This thread is probably dead but I'm getting the same leak running down my cam shaft sensor harness and can't pinpoint exactly where it's leaking from but I know its the injector pump.