Dealer can't fiqure it out, can you?

[DieselFite]

Here goes the problem I have. First of I have A 2006 Cummins with a six speed. I have a long start problem and it's throwing a p0148 trouble code. It's been in the shop for 4 days now, they have pulled a new truck side by side pulling parts to try to fix it and no luck now the are waiting on corporate to call Monday. After the ran all test that they were told to the only thing they came up with is a retuen flow problem now get this the return flow should be 180ml per minute and there readings so 450 ml per minute. Soo does anyone know the problem and how to fix it. The only thing they have let to try is pulling the cp3 off the other truck and put it on mine.





Oh yeah they did make a comment about pink fuel in the fuel filter canister and how if the cp3 was bad Dodge may not warranty it. Thanks in advance guys.

 

[Lightman]

Check the rail pop off valve, or bad injector 180 ml max the good range would be below 100 ml could also be leaking past injector feed tubes so CP3 cant keep up at start if they isolate each injector they can tell which one is leaking

 

[MMeier]

Any fuel at all coming out the top of the pop off valve indicates it is bad, correct?

 

[steveinaz]

When I had the in-tank pump put in my 02 the dodge garage said that red fuel would take the pump out. The only failed pump they have seen was from a guy running off road diesel. Jeff

I think that if red fuel was bad for fuel systems Caterpillar(where I work) would not be putting it in their multi billoin dollar fleet of equipment. My . 02 SteveinAZ

 

[6speed]

I drive an 18 wheeler and about the time that fuel sky rocketed after the hurricanes they were putting off-road on the market because the road diesel was not available from the refinery. I know because I had to buy it for the big truck for about 2 months. Did you have your truck late last year? I live in Ga and I know that Pilot was as well as Flying J.







04 3500 Q/C, 6sp, graphite metallic sport model, teflon coated american racing wheels, BD intake system, TST box, Autometer, SRT-10 hood, fast coolers, Mag-tech diff cover

 

[DieselFite]

no I bough it in december and the dealer also said that red is better for the trucks and mileage is better on mine if i run it and my buddy runs it in his powerstroke and his mileage it better

 

[PGreenleaf]

If your getting 450 on the return and are supposed to be getting only 180 then common sence telles me The return flow valve is not working right - allowing to much fuel return and not enough pressure to the common rail to feed motor.

 

[DieselFite]

If your getting 450 on the return and are supposed to be getting only 180 then common sence telles me The return flow valve is not working right - allowing to much fuel return and not enough pressure to the common rail to feed motor.

I agree with that. Is the retuen flow valve a replacement vavle or is it internal in the cp3?

 

[cerberusiam]

The valve you are talking about is the FCA(Fuel control actuator) and it is a serviceable item.

 

[Cattletrkr]

... and the dealer also said that red is better for the trucks and mileage is better on mine if i run it and my buddy runs it in his powerstroke and his mileage it better

The fuels *should* be identical except for color.

 

[EXSTROKER]

yes ,thay are the same I hauled fule,right wen it goes in to the tanker

the dye is put in ... so wen thay say it is the red fule that is doing it

totaly full of crap... . just tell then it is the fule addetive you must be using. .

:-{}

 

[DieselFite]

I will try that. I will know more this afternoon. Here's the deal If I can run red fuel in a $200,000 Combine and $100,000 (CASE IH) which has the same more It doesn't bother me to run it in my $40,000 truck. I know alot will agree with that.

 

[preleeguy]

For what it's worth, I've had 2 dealerships try to fix my long start/no start problem for a month now. They now say I have fuel that is contaminated with gasoline. I can't believe it took them this long to figure this out,They finally called in a Cummins Tech to figure it out, Maybe I shouldn't speek too quick,They've guaranteed a fix several times before with bad results when I take it home. By the way if they are correct you wouldnt believe who I get my fuel fron exclusively. Good Luck with your truck man, you'll need it.

 

[Lightman]

If your getting 450 on the return and are supposed to be getting only 180 then common sence telles me The return flow valve is not working right - allowing to much fuel return and not enough pressure to the common rail to feed motor.

The 180 ml measurement is injector return flow only when the test is done the rail pop off valve and the CP3 have to be isolated from the injectors and the injectors are tested by them self. The CP3 return flow is 1000 ML per min

max.

 

[DieselFite]

Just called my dealer this evening and this is what I found out. He did the same test on a new truck and it checked out so tomorrow he's testing mine again. They have to check each individaul injector cause last time they tested it they just rounded the ml off to the nearest ten. Anyway Dodge told them they will have to put some injectors in it but don' t think it needs all six. So this is what they have to figure out and this is the example. 6 injectors two of them are returning at 425 ml per minute and the other 4 are 450 ml per minute. Dodge tells them to replace the four high ml flow injectors and that will fix the other two thinking that the four bad one's are throwing the other two off. So we will see what happens I don't think I will know till Friday.

 

[sag2]

It sounds like the technician is not familiar with the return test. You have to isolate the injectors, connector tubes and head from the CP3.

They install the 9012 test fitting into the back of the fuel filter. They then remove the quick disconnect from the line at the bottom of the filter that goes back to the tank. Now they need two clean containers with ml graduations. The hose from the 9012 should be 1000 ml or less in one minute idling. The hose from the bottom of the filter housing is now isolated from the CP3 and should read 180 ml or less in one minute idling. The book is confusing and if the technician has not been to diesel class where they do the fuel testing he might be lost.

If they have more than 180 ml off the bottom they cap the injectors one at a time to isolate the bad one(s). Sometimes helps to have several caps if there is a lot of leaking by.

I have photos of the procedure if they need them.

 

[TowPro]

I got the same problem, once you guys figure it out, I might need some kind of reference number or repair order number so I can get my dealer to figure out what to do.

 

[DieselFite]

They are bound and determined to figure it out. My neighbor and his dad are waiting inline for the same thing. I will let you know the final fix. Also sag2 can you post the picture and procedure for all of us and future references?

 

[sag2]

I can't post them directly because they are too large. Rbattelle has been resizing them for me so I can post photos. When I get back home I can ask him if he can do a couple more.

 

[DieselFite]

ok so they figured it out. My truck is getting SIX new injecters. I have to go get the truck cause they don't have them in stock. They also told me to make sure when I bring they truck back that there is no red deposits of fuel so they don't get a charge back on them. So does anyone know how to get the red out?????????????????????