start up problem

[jman1986]

hey guys i just bought a 2005 g6 it has a start up problem it starts up great when we bought it and still does , but we get those times where we put the key in the ignition and go to start it up and turn the key and it tries to start up and it doesnt and the starter seems to still be in gaged while the key isnt turned. so i try again and step on the gas and it starts up just fine. can you help me solve this prolem .

[grfnkl]

It sounds like you have the overcrank issue. It's common for 2005 and early model 2006 G6's. A PCM flash should resolve your problems.

Originally Posted by TSB

Subject: Starter Engaged After Engine Starts #PIP3550D

Models: 2005-2006 Buick Terraza
2004-2006 Chevrolet Malibu
2005-2006 Chevrolet Uplander
2005-2006 Pontiac G6, Montana SV6
2005-2006 Saturn Relay
with 3.5 LX9

Condition/Concern:

Some customers may comment that the starter motor stays engaged or doesn't release from the engine after the engine has started. Most comments received indicate that this condition only lasts a few seconds and usually occurs on a warm or hot engine restart after the engine has been turned off for a period of time. Dealer may have to drive the vehicle for a distance and then shut off for a short period of time to duplicate.

Recommendation/Instructions:

Engineering is currently developing a new service calibration for the PCM to correct this condition. At the present time the calibrations are expected to be available and a bulletin released in September, in the meantime do NOT replace the starter motor/solenoid, flexplate (flywheel) or other components in an attempt to correct this condition.