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07 chevy Avalanche

Gary Boyd's Avatar
CF Beginner

Join Date: Mar 2017
Posts: 1

March 20th, 2017, 12:15 AM   #1  
07 chevy Avalanche

service stabling ..traction control ..p300 co561 codes read ..running rough and shifting hard ..changed plugs .coilpacks
with no change ..please help!!!!!!

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