Chevy/GMC Duramax 06-07 LBZDiscussion of Chevy and GMC Trucks with LBZ Duramax Turbo Diesel Engines
For more than 2 years periodically out of the blue the engine will not rev over 2000RPM! if you stop and turn the truck off and wait 2 minutes and restart it will go back to running fine, sometimes for a minute sometimes for a ... JOIN NOW TO REMOVE TRACER
For more than 2 years periodically out of the blue the engine will not rev over 2000RPM! if you stop and turn the truck off and wait 2 minutes and restart it will go back to running fine, sometimes for a minute sometimes for a month. i took it to a dealer and they said it was the computer, egr, and egr cooler. I replaced them all and it made no difference. i have put over 50k miles on the truck fighting this , any Ideas? The truck has 215k and runs like new when this is not happening.
I have changed the fuel filter multiple times. I will take off from a stop and upon acceleration it will stumble and then boom it just won't go over 2000rpm. This does not generate any codes either!! So anyone have any ideas??
This happend to my brothers 01 LB7. He would be driving around normal nothing wrong. But as soon as he hit the pretty steep hill by our house and he would need to get on it, by the time the truck would hit 2nd or 3rd gear and hit 2000 rpm, it would startle really hard, a check engine light would come on, and he couldnt go above 2000. If he was real easy on it he could shift without going above 2000. But the problem stopped when he replaced the injectors when one finnaly stuck open at 160,000. But either way, the chevy dealer mechanic said its either injectors, fuel filter, or map sensor on your air intake.
I have an 07 duramax usually towing about 10 to 20k on average, it has 271k miles. It recently went into limp mode while towing a dully on a flat bed. Three codes came up one was #8 glow plug, fuel rail pressure low, and temperature too low on coolant any advice is greatly appreciated
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