Problems · by component
2006 Pontiac G6 engine and engine cooling problems
33 owner complaints to NHTSA about the 2006 Pontiac G6 cite engine and engine cooling, 2% of all 1,910 complaints for this model year.
Complaints
33
2% of all complaints
Crashes
2
Reported by owners
Fires
0
Reported by owners
Injuries
1
Reported by owners
What owners say about the engine and engine cooling
Verbatim from NHTSA complaints, newest first
“LETTER FROM SENATOR GILLIBRAND ON BEHALF OF CONSTITUENT RE 2006 PONTIAC G6 CATALYTIC CONVERTER. *SMD THE CONSUMER STATED HIS MOTHER WAS DRIVING THE VEHICLE, WHEN THE SERVICE ENGINE LIGHT ILLUMINATED. THE CONSUMER STATED ON THE WAY TO THE DEALER, THE SERVICE ENGINE LIGHT WENT OUT. HOWEVER, THE TRANSMISSION WAS SHIFTING HARD. ACCORDING TO THE DEALER, THE EXHAUST CAM SOLENOID NEEDED TO BE REPLACED. HOWEVER, A MONTH LATER THE VEHICLE WAS EXHIBITING THE ISSUE. THE DEALER DETERMINED THE CATALYTIC CONVERTER NEEDED TO BE REPLACED.*JB”
“TL* THE CONTACT OWNS A 2006 PONTIAC G6. THE CONTACT STATED THAT AFTER THE VEHICLE WAS PARKED, THERE WAS FLUID LEAKING FROM UNDER THE FRONT END. THE VEHICLE WAS TAKEN TO A DEALER WHERE IT WAS DIAGNOSED THAT THE COOLANT CROSSOVER PIPE GASKET NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 155,000.”
“KNOCKING LOUD NOISE COMING FROM THE MOTOR, MECHANIC FOUND THE FRONT AND BACK MOTOR MOUNT BROKEN ALONG WITH THE BOLTS ALSO BROKEN. REPAIRED COST $474.10. FRONT OF BODY NOT ALIGNED PROPERLY THERE IS A GAP WITHIN THE HOOD AND THE CAR BODY DON'T KNOW WHETHER WAS CAUSED BY THE MOTOR SHIFTING AROUND. *TR”
“TL- THE CONTACT OWNS A 2006 PONTIAC G6. THE CONTACT STATED THAT THE VEHICLE EXHIBITED AN EXCESSIVE CRANK AND WOULD SPORADICALLY FAIL TO START. THE CONTACT TOOK THE VEHICLE TO THE DEALER FOR DIAGNOSTIC TESTING BUT THE TEST DID NOT DETERMINE ANY DEFECTS WITHIN THE VEHICLE. THE CONTACT TOOK THE VEHICLE TO A LOCAL MECHANIC AND THE MECHANIC ADVISED THAT THE FUEL PUMP WAS FAULTY. THE MECHANIC REPLACED THE FUEL PUMP BUT THE REPAIR DID NOT REMEDY THE PROBLEM. THE FAILURE MILEAGE WAS 86,000. THE VIN WAS NOT AVAILABLE. KMJ”
“I BOUGHT THIS CAR A LITTLE OVER A YEAR AGO AND I HAVE NEVER HAD ANY PROBLEMS WITH IT WHATSOEVER. ALL OF A SUDDEN I GO TO START MY CAR THIS MORNING AND MY ENGINE LIGHT IS ON. ALSO, MY CLOCK IS DISPLAYING THE WORDS, "POWER STEERING" AND "ENGINE POWER REDUCED." I HAVE NO IDEA WHAT HAPPENED BUT I COULD NOT CONTROL THE CAR VERY WELL AND THE ENGINE WAS REMMING HIGH AND LOW EVEN AFTER I HAD STOPPED THE CAR. I HAD TO PRESS REALLY HARD DOWN ON THE BRAKES TO GET IT TO STOP MOVING BUT THE ENGINE WAS STILL REMMING HIGH AND LOW. LUCKILY, THIS HAPPENED AS I WAS JUST PULLING OUT OF MY APARTMENT COMPLEX SO I WAS ABLE TO MAKE IT BACK HOME. AS YOU CAN SEE THOUGH, HAD THIS HAPPENED WHILE OUT ON A MAIN ROAD OR ON THE HIGHWAY, THIS COULD BE A MAJOR ISSUE OR MY CAR JUST SHUTTING DOWN. *TR”
“I HAVE HAD A THUMPING IN THE CAR WHEN TURNING THE STEERING WHEEL AND WAS TOLD THAT THE STEERING GEAR NEEDS TO BE REPLACED AND THERE COULD BE OTHER DEFECTIVE PARTS ONCE THEY GET INTO IT. AT PRESENT I CANNOT AFFORD TO FIX THE PROBLEM AND AM SAVING UP TO GET THE $800 REPAIR STARTED. I FEEL THIS IS A RECALL ISSUE THAT GM NEEDS TO BE FORCED TO RECALL THE G6'S FOR THIS PROBLEM BECAUSE A FAULTY STEERING SYSTEM IS A SAFETY ISSUE. I DO NOT FEEL SAFE DRIVING MY CAR BUT IT IS THE ONLY MEANS OF TRANSPORTATION I HAVE, SO AT THIS TIME I HAVE NO CHOICE. ALSO, I HAVE HAD OTHER MAJOR PROBLEMS WITH THIS CAR EVERY YEAR SINCE I BOUGHT 3 YEARS AGO. THE FIRST YEAR WAS A SENSOR IN THE TRANSMISSION, THE SECOND WAS THE CATALYTIC CONVERTER, AND NOW THIS YEAR THE THERMOSTAT AND SENSOR AND THIS STEERING PROBLEM. THIS CAR IS A LEMON AND NEEDS TO BE RECALLED! *TR”
Showing 6 of 33 reports. Read every report on NHTSA.gov.
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 9, 2026NHTSA vehicle page
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.