2009 Pontiac G6 engine problems
24 owner complaints filed with NHTSA name the engine on the 2009 Pontiac G6 — 3% of all complaints for this model year.
What owners report
“I purchased a used 2009 Pontiac G6 3.9L almost 4 years ago. I have experienced white smoke pouring from under my hood 3 times so far. I've taken it to the dealership and first time was informed it was a bad power steering hose leaking onto the exhaust- preCat area. The second repair dealership said…”
filed Jan 21, 2025
“Timing Chain making noise...voltage fluctuations throughout all the car...cruise control will shut off if I got to use wipers or blinkers or even turn on the air system and lights will dim if you use power windows or have the radio up loud.”
filed Jun 8, 2024
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
04-06-04-051J · Service Bulletin/Repair Instructions · issued Sep 27, 2024
Engine problems in other G6 years
| Year | Reports | Share |
|---|---|---|
| 2010 G6 | 4 | 1% |
| 2008 G6 | 36 | 3% |
| 2007 G6 | 44 | 4% |
| 2006 G6 | 55 | 3% |
| 2005 G6 | 12 | 2% |
Other reported problem areas on the 2009 Pontiac G6
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.