2008 Pontiac G6 Engine cooling Problems
- Complaints
- 9about this part
- Share
- 1%of 1,080 total for the year
- Median mileage
- 91,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 9 complaints about the engine cooling of the 2008 Pontiac G6, 1% of the 1,080 complaints for this model year. Where a mileage was given, the median is 91,000 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“My problems started with the catalytic converter which failed and the dealer told me it was not covered under warranty which I later found out it was up to 100,000 miles. Next my airbag service light keeps coming on and now my traction control comes on and my engine powers down and I slow down at a rapid rate. Yesterday I was going down the interstate at 65 MPH and the traction control light came on and the car completely lost all power almost causing me to crash and get hit by a tractor trailer and now it will not start.”
NHTSA complaint #10427119, filed 2011-09, 98,672 miles“2008 Pontiac G6 2.2l 4-cyl. Catalytic converter failure. I purchased the car in july-2008 specifically because I took a new job that would require a lengthy commute until the wife and I could relocate closer to my job. I have driven approximately 176 miles round trip daily between july-2008 and july-2010. At 90k miles, the check engine lamp came on. The local GM dealership informed that the catalytic converter had failed. They converter was replaced by the dealer on 7/29/2010 at a cost of $787 - including labor. …”
NHTSA complaint #10346316, filed 2010-07, 91,000 miles“My power steering went out while driving down the interstate entering an exit ramp at 50 MPH. This is the first and only time this has happened. I've now parked my vehicle and haven't been driving it. I have two children under age 4 and cannot allow them to be in that death trap. After I pulled over to a safe area, I turned the ignition off and about 10 min later on again. After that, my steering was fine. I've also had the rack and pinion replaced 3 times for a click sound that is made anytime I turn to the left or right. …”
NHTSA complaint #10230021, filed 2008-06, 64,216 miles“Intermittent stalling of the car while driving. At first the stalling took place once every few weeks and only as the speed was decreasing. The car was taken to the dealership, who said there was nothing wrong with the car. The dealership stated there was no codes in the computer to explain the stalling and was unable to replicate it. Over the last 9 months the stalling has increased. The car stalls every few days, and at times stalls while accelerating. After the car stalls, it immediately starts right back up.”
NHTSA complaint #10355844, filed 2010-09, 40,000 miles“The contact owns a 2008 Pontiac G6. The contact stated that the vehicle would lose power intermittently. The vehicle was taken to the dealer. The technician diagnosed that the catalytic converter needed to be replaced. The manufacturer was made aware of the failure. The vehicle was not repaired. The failure mileage was 142,000.”
NHTSA complaint #10716778, filed 2015-05, 142,000 milesRelated service bulletins
- 10251890Mar 13, 2024This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank…
- 10250775Feb 22, 2024This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large…
- 10249579Jan 12, 2024This PI bulletin advises the technician on the proper way to install the pistons in an engine.
- 10246483Nov 29, 2023This service bulletin provides diagnostic aid information/procedures to perform inspections to determine if the engine needs to be replaced as opposed to just internal parts for…
- 10245395Nov 6, 2023This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure when diagnosing…
- 10244273Oct 6, 2023This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.
- 10247768Sep 1, 2023This Preliminary Information communication provides information to the technician of a complaint of a sag or hesitation when accelerating. The concern is present when coasting at…
- 10242262Aug 24, 2023This service bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and…
- 10242061Aug 7, 2023This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.
- 10241417Aug 1, 2023This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
Engine cooling: other model years
Other parts of the 2008 Pontiac G6
420 complaintsExterior lighting
243 complaintsElectrical system
225 complaintsBrakes
154 complaintsAir bags
101 complaintsTransmission and drivetrain
83 complaintsVehicle speed control
67 complaintsFuel system
62 complaintsElectronic stability control
44 complaintsEngine
36 complaintsOther or unknown
25 complaintsLatches, locks and linkages
23 complaints
← All problems reported for the 2008 Pontiac G6
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology