Cummins lift pump failures

[DNordvik]

At 17,000 miles my 2007 Ford F650 quit running and had to be towed to dealer for repair. Lift pump was replaced under warranty. Dealer says that this is common for the Cummins powered trucks. Alot has been posted about how Dodge has a faulty fuel system on the trucks that they build, but my experience leads me to believe it is more of a Bosch/Cummins problem.

 

[DMcPherson]

it is and allways has been. the common rail engines seem to be worse in a sense, shice the engine usually dies from having a lift pump failure. but generally there is a fuel pressure sensor now so you know if its going bad.

UI thought they had done good with the inline pump instead of the carter but I guess not.

the 07 emissions will not have a transfer pump just like all the previous common rail engines in europe did not.

 

[steved]

it is and allways has been. the common rail engines seem to be worse in a sense, shice the engine usually dies from having a lift pump failure. but generally there is a fuel pressure sensor now so you know if its going bad.

UI thought they had done good with the inline pump instead of the carter but I guess not.

the 07 emissions will not have a transfer pump just like all the previous common rail engines in europe did not.

I don't agree about this... the 2nd gens with the VP44 are the worst because when the LP fails it causes the IP to also fail if not caught right away. In a 3rd gen, if the LP fails, the IP (CP3) simply runs out of fuel... you are stuck with a tow bill and cost of a LP; not a tow bill, cost of a lift pump, and cost of a new VP44.



That's my take anyway...



steved

 

[Greenleaf]

Lift pumps and injection pumps all the time with the nine ISB engines here at the school. The lift pump is same for the dodge, however, the bus fuel tank is much farther back.

 

[DMcPherson]

I don't agree about this... the 2nd gens with the VP44 are the worst because when the LP fails it causes the IP to also fail if not caught right away. In a 3rd gen, if the LP fails, the IP (CP3) simply runs out of fuel... you are stuck with a tow bill and cost of a LP; not a tow bill, cost of a lift pump, and cost of a new VP44.



That's my take anyway...



steved

thats why I say I could go either way. at least with a common rail failure the pump doesnt go bad, but you are generally stranded. if yo uhave a feul pressure light your ok, I guess its the worse of 2 evels.

 

[DNordvik]

I don't agree about this... the 2nd gens with the VP44 are the worst because when the LP fails it causes the IP to also fail if not caught right away. In a 3rd gen, if the LP fails, the IP (CP3) simply runs out of fuel... you are stuck with a tow bill and cost of a LP; not a tow bill, cost of a lift pump, and cost of a new VP44.



That's my take anyway...



steved

The service manager at this dealer told me that they also have had to replace injection pumps because of transfer pump failure. On the Ford tuck there is no warning other than service engine soon light and loss of power. When I picked up the truck I was told it quit running because the wiring harness by the starter had been rubbing on the frame and had worn through. So after repairing the wiring they replaced the transfer pump which had been causing low power and service engine light to come on intermittently.



I feel that by now they should have a transfer pump that should hold up for alot longer than they do. The gas engine vehicles I currently own have all made it past 100,000 miles without fuel system problems.

 

[steved]

The service manager at this dealer told me that they also have had to replace injection pumps because of transfer pump failure. On the Ford tuck there is no warning other than service engine soon light and loss of power. When I picked up the truck I was told it quit running because the wiring harness by the starter had been rubbing on the frame and had worn through. So after repairing the wiring they replaced the transfer pump which had been causing low power and service engine light to come on intermittently.



I feel that by now they should have a transfer pump that should hold up for alot longer than they do. The gas engine vehicles I currently own have all made it past 100,000 miles without fuel system problems.

Are you sure it was a Common Rail engine?? I have seen a lot of guys have LP failures in the 3rd gens and very rarely does it require a CP3 replacement...



steved

 

[pwr2tow]

I feel that by now they should have a transfer pump that should hold up for alot longer than they do. The gas engine vehicles I currently own have all made it past 100,000 miles without fuel system problems.

Dodge does, it's called an in-tank lift pump and you get them standard on a 05 through early 07 trucks. Not sure what the 07. 5's will have. Extremely rare for one fail.

The only in-tank lift pumps that have had problems are the ones the dealer installs on the earlier trucks as replacement for the engine mounted pumps. There was a connector in the harness that had a bad wire installed. I think DC is aware of this retrofit problem and is correcting it.