4.3L L35 Engine Wide Open Throttle DTC P0335 P0336 P0339 - kw crank crankshaft DTC data LU3 miss misfire sensor speed stall tachometer

When servicing the vehicle with the VIN you entered, the following diagnosis might be helpful if the vehicle exhibits the described symptoms.

Engine appears to be at RPM limit (fuel cut off) between 3000 and 4000 RPM. Engine may feel like it is at the rev limit, scan tool RPMs may spike, and the tachometer may fluctuate.

Reference bulletin 02-06-04-059. This bulletin applies to 2004 MY also.

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Please follow this diagnosis process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed. If these steps do not resolve the condition, please contact GM TAC for further diagnostic assistance. This diagnostic approach was developed for the vehicle with the VIN you entered and should not be automatically be used for other vehicles with similar symptoms.

(00 01 02 03 04 CHEVROLET SILVERADO 2WD) and (00 01 02 03 04 CHEVROLET SILVERADO 4WD) and ( 00 01 02 03 04 CHEVROLET ASTRO VAN 2WD) and (00 01 02 03 04 CHEVROLET ASTRO VAN AWD) and (00 01 02 03 04 CHEVROLET EXPRESS VAN) and (00 01 02 03 04 CHEVROLET S10 PICKUP 2WD) and (00 01 02 03 04 CHEVROLET S10 PICKUP 4WD) and (00 01 02 03 04 CHEVROLET BLAZER 2WD) and (00 01 02 03 04 CHEVROLET BLAZER 4WD) and (00 01 02 03 04 GMC SIERRA 2WD) and (00 01 02 03 04 GMC SIERRA 4WD) and (00 01 02 03 04 GMC SAVANA VAN) and (00 01 02 03 04 GMC SAFARI VAN 2WD) and (00 01 02 03 04 GMC SAFARI VAN AWD) and (00 01 02 03 04 GMC SONOMA 2WD) and (00 01 02 03 04 GMC SOMONA 4WD) and (00 01 GMC JIMMY 2WD 00 01 GMC JIMMY 4WD)

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