Question about 2002 Pontiac Grand Am
Hot weather with direct sunlight on this black Grand Am will cause a significant misfire. It has done this off and on for years, but only once or twice a year. Back then the service engine light stayed on and it always self-corrected with a little driving and then restarting engine. Now, service engine light flashes, (not good), engine runs rough and only returns to normal after hours of cooling down in the shade or over night. Stays fine, runs normal for weeks, until it sits out all day in very hot weather, especially if the hood is facing the sun. I strongly suspect a sensor malfunction. Registers OBD code PO206 and PO306 indicate injector circuit and misfire # 6 cylinder. Another time, same symptom, O2 sensor code PO132 was registered. What should I look for? Both O2 sensors have been replaced within the last year, less than 5000 miles ago as part of regular maintanence.
I would check wiring at injector 6 for a bad contact if ok test injector
Posted on Jun 23, 2009
a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Dec 13, 2015 | Cars & Trucks
Jun 19, 2015 | 1992 Volvo 240
Aug 12, 2014 | 2002 Jeep Grand Cherokee
Jan 29, 2013 | 2002 Buick Rendezvous
Jul 30, 2012 | 2005 Mitsubishi Lancer
May 30, 2010 | 2004 Pontiac Grand Am
May 14, 2010 | 2002 Jeep Grand Cherokee
Aug 16, 2008 | 1993 Cadillac Allante
Feb 16, 2017 | 2002 Pontiac Grand Am
428 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: