I have a 2002 Dodge Ram 3500 with a 5.9l 24 valve Cummins turbo.
My problem is I have lost all turbo boost. I have removed the duct between the air cleaner and turbo and it is free spinning and no looseness in any direction. Could it be the waste gate or I have heard there is a chip that could be bad as well. Anyone had this problem? Or have any suggestions.
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There is no noise, and no black smoke, and no I do not have boost gauges BUT,,this thing used to pin you in the seat on hard acceleration and kept you there until you let off. Now there is no acceleration boost at all. It acts like there is no turbo on the engine.
your lift pump is most likely the cause, STOP DRIVING IT UNTILL YOU CAN CONFIRM FUEL PRESSURE!!!!, with no lift pump i have seen the injection pump fail in as little as a mile and that is expensive!!! and is very common with vp44 engines
98-12v cummins converted from v10,cammed,nv4500,compound turbos,SB3600DD,heavily modified
07 red mega cab long bed,cummins 5.9,G56,mygig,southbend, smarty, more... 99 1500 4bt
The woman's-02 cummins,3500 dually,NV5600,lifted,some added fuel, and 2013 dart 2.0 6spd
I just went through this on my 2000 ram the guy that owned it before me replaced the lift pump,injectors,injector pump,turbo. I hooked a gauge to the turbo and had a buddy brake torque it. I had 3 psi. I hooked my snapon scanner to it and the boost pressure sensor showed 0 psi. I replaced it and the truck came back to life!! 10-15 minutes to test it and scan gotta be cheaper than throwing parts at it. Just a thought. Also I had no CEL.
Last edited by dragracin78; 10-16-2012 at 10:50 PM..
Reason: forgot something
Dragracin78...Thanks for the info. What was it you replaced? The boost pressure sensor?
My truck runs fine except for the boost and I am getting no CEL so maybe I have the same problem you had. I don`t have a code reader but am placing an order for one in a week or so.
My truck run fine too. no cel but was real doggy. no boost. it was like 90 bucks at autozone. code reader wont work unless it has a data display mode. you need to see what the sensor is actually telling the computer the boost is. I had an old pressure gauge I put it on the turbo where the wastegate hose is and had 3 psi when i tried to brake torque it. done same thing with scanner hooked up and it said 0 psi boost.
Thanks dragracin78...I was checking them out online and found one for 89, haven`t checked with CarQuest yet (they are the only auto parts store here except for Napa).
As for a reader, I found one online for $89.75 which hooks up to your laptop and does a host of things. Software is included and 24-7 support if needed. Here`s the link in case you want to check it out. http://www.obdcom.com/
I am definitely going to get one for future use.