01-04.5 LB7 Duramax PowertrainDiscussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect
wheel bearings
t-case likes to rub holes into itself
pitman and idler arms wear out to fast
tie-rods love to break
if its a straight shift, i'll almost guarantee you the flywheel is JUNK!!
check the grear oil in the rear axle, GM liked to underfill those.
injectors are gonna go bad, but theres extended warranty coverage 7years/200k miles from sale date.
thats just to name a few off the top of my head..
__________________ 2002 reg cab/wrong bed
lb7 zf-6 speed, ppe hot+2, sbc/dd, afe intake, 5" mbrp, green keys, sd centerlink/sleeves, kennedy lift pumps, flex-a-lite fans, banks big head, autometer boost and pyro, 5% tint, gooseneck hitch, fluidampnr, aluminum shifter, 305-70-16 on 16x10 eagles, line-x
What kind of injector problems, how often do they go bad?
check the engine oil, if its overfull and smells like diesel fuel chances are your injectors are bad. also check the balance rates for them, anything over 4 in park at idle is bad (i believe).
it varies on time, some only last a few thousand miles and some last a long time. i have 100k on my originals so far (knock on wood), and i consider myself LUCKY!!.
__________________ 2002 reg cab/wrong bed
lb7 zf-6 speed, ppe hot+2, sbc/dd, afe intake, 5" mbrp, green keys, sd centerlink/sleeves, kennedy lift pumps, flex-a-lite fans, banks big head, autometer boost and pyro, 5% tint, gooseneck hitch, fluidampnr, aluminum shifter, 305-70-16 on 16x10 eagles, line-x
this truck only has 77,000 miles, not for sure if its a manual or auto have not looked at it yet. I have a Dodge Cummins and I have had injection pump problems since I bought it. How hard are the injectors to change, I have changed them on a dodge before.
Last edited by FarmBoy7284 : 05-18-2007 at 02:37 PM.
not trying to scare anyone, just trying to inform him of what i have been through or seen. as you well know, all vehicles have problems sooner or later. these are some that are know to be with these trucks.
FWIW, i would not hesitate on buying another one either.
__________________ 2002 reg cab/wrong bed
lb7 zf-6 speed, ppe hot+2, sbc/dd, afe intake, 5" mbrp, green keys, sd centerlink/sleeves, kennedy lift pumps, flex-a-lite fans, banks big head, autometer boost and pyro, 5% tint, gooseneck hitch, fluidampnr, aluminum shifter, 305-70-16 on 16x10 eagles, line-x
Well you could buy a ford and or a dodge and have the front end fall apart or a 6 liter that leaks like a sive or a 24 valve and have the lift pump fail causeing injector failure Your choice, but in my opionion a properly maintained duramax will out live any truck on the road!
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