2007 Pontiac G6: engine overheating

Filed Aug 4, 2019 · Electrical, Lights · 103,400 miles · UT

Headlight wiring harness overheated and melted, causing lamp failure and no low beam headlights.

Filed Jul 6, 2018 · Engine · 229,560 miles · MS

Vehicle has been sitting since the first of february due to a constant coolant leak. Leak first appeared at bottom corner passenger side of radiator, and within a week had also showed up on bottom corner driver side of radiator. Eventually wound up replacing the overflow reservoir, 3/4" hose tee located directly under overflow, several clamps, transmission cooling lines, installed brand new radiator and oil pressure switch located directly above oil filter. After 10 days with absolutely no leaks, they reappeared in exactly the same locations. Finally traced leak on passenger side to upper corner passenger side of intake manifold gasket, and the driver side leak traces to almost directly at the coolant crossover pipe gasket. Now, I'm again facing another $200 payout to the parts store.! I'm going to make this repair myself, as I have made all repairs for the previous 6 months. My 07 g6 was wonderful for the first 3 years of ownership, but the last 3 years have become nothing more than an absolute nightmare. If I could file for reimbursement for my expenses during this time I have absolutely no doubt that with the prices of parts, current hourly rate charge set at $75-$100 hour, and reimbursement for time spent wasting time going to pick up parts the total would most likely come out to $8000-$9500. I can't even afford to pay for another vehicle, and sadly I also can't afford to continue investing in a vehicle that has become a mechanical monstrosity with an extremely voracious appetite for parts and money.

Filed May 5, 2016 · Lights · NC

The headlights have a known wiring issue. There have been reports of people that have taken thier cars to be repaired and then the same problem still exist shortly afterwards again. I am now going through this problem my mechanic was having issues finding the part. From what I have read the covering that goes over the wiring gets overheated and ends up melting the wire. This is clearly a manufactor problem and gm should be covering the expense to get this fix.

Filed Oct 31, 2014 · Transmission · 155,054 miles · LA

Tl* the contact owns a 2007 pontiac g6. The contact stated the engine overheated and the check engine light illuminated and the vehicle jerked when the gears were shifted. The vehicle was taken to the dealer for an unknown manufacturer's recall repair related to the brake and transmission cable. The manufacturer was not notified of the issue. The approximate failure was 155,054. Updated 12/19/14

Filed Jul 22, 2014 · Electrical · 85,000 miles · TX

When I was driving, don't know for sure the speed, the engine started to overheat the A/C started blowing hot air I stopped at an auto parts store and replaced a cooling sensor on the side of the engine. Some how it kept doing it only in the summer. Then not long after that my oil pressure light kept going on and off periodically. Either speeding up or going around corners it comes on dining and turning the light on. The oil pressure light started coming on just after an oil change. I've had it changed twice since then and its still happening. No one seems to know what it is.

Filed May 12, 2013 · Acceleration, Electrical · 49,000 miles · VA

Brake lights, including the third brake light, appear to be illuminating when the brake is not applied and not illuminating when the brake is applied. They appear to be working opposite than intended. Also, cruise control disengages intermittently and cannot be reset until after the car is turned off and started again. I have replaced the wiring harness for both headlamps because the connectors overheated and caused headlamps to fail. The brake light may cause me to have an accident and will most certainly cause me to fail the state inspection. I don't understand why a further recall has not been issued other than the 2005 models. Obviously the problem is across the entire product line of g6's.

Filed May 17, 2012 · Engine · 97,000 miles · AL

The engine cooling system has coolant leaking. Replace the crossover gasket. The car is running hot and not drivable.