I feel really dumb, but how in the world do you create a post of your own? I have searched all around the home page and such.
lb7 problems ,high fuel rail pressure code rpl fuel rail sensor cleared problem ,next low fuel rail pressure on demand, rpl regulator, didn't fix . the trk need injectors ( haseing)
replaced injectors . same problem . low fuel return to the tank . rpl pump ,fuel return much better. but same problem . checked for air .found air suction side of filter,rpl housing ,no air .i no longer get code but as i increase rpm to 1600 injectors start cackling, the return line to the tank ( clear hose) shows a bubble just as the injector cackle. new fuel hoses . how can i check the fuel pressure relief value.before i rpl pump i added .60 shims to the relief valve spring. no change . getting discouraged (bosch injectors/ pump) gillespie
I just purchased a 2015 High Country in July, When I get up to 40mph the passenger seat starts vibrating, the faster I go the harder it vibrates. The service dept. at the dealership had the truck for a week, saying the tires are the issue. They have put different brands on and still the issue remains! I'm now being advised they are looking for a different set of tires on another new Duramax that doesnt cause the vibration and will put them on mine??? I'm calling BULL@(%$
I've had a few folks tell me it sounds like something in the drive shaft, or possible the axle???
Any advice??
Seriously, why does everyone post in here.here is my advice. start a new thread.....
Hey guys, Ive been checking out this forum from time to time and it seems like for the most part a good place to kick things around and figure things out. So I have had 4 of these lb7 trucks and love them. I have had different problems and have taken care of them. I have also done a bit of work on several other trucks for folks. Now I have run into a issue thats driving me crazy. I have a 01 that just turned 200k. I bought the truck with bad injectors the previous owner did head gaskets, bolts,radiator, water pump and block heater. (His mechanic told him he needed to replace it all when doing head gaskets) I replaced the injectors and the fuel in the oil problem stopped. My issue now is at times the truck seems lazy on take off and other times I can pull out and it will blow the tires off. I have changed the boost sensor , that was the code it was pulling out. If it done it all the time it would be easier to fix. Anyone have any insight on what it could be.
Thanks,
Dew