Problems · by component
2009 Pontiac G5 fuel/propulsion system problems
27 owner complaints to NHTSA about the 2009 Pontiac G5 cite fuel/propulsion system, 36% of all 76 complaints for this model year.
Complaints
27
36% of all complaints
Crashes
0
Reported by owners
Fires
0
Reported by owners
Injuries
0
Reported by owners
What owners say about the fuel/propulsion system
Verbatim from NHTSA complaints, newest first
“All gauges on dash starting going up and down, Anti theft light, power steering light, low fuel light. Car slipping or having hard time going and possibly the key transponder ignition / chip key anti theft shut down.”
“My 2009 Pontiac G5 was driven to work this morning 6-10-21and parked in a Michigan State vehicle garage. Security notified me at work that my vehicle had a puddle of gas under and near a rear tire. I removed vehicle frome parking garage and parked it in a remote open parking lot. A gas leak in a car is dangerous, and a safety issue for me and others , especially in a parking garage!!! The vehicle has always been maintained as I am the original owner of the car. The car will be delivered to the dealer for inspection on 6/14/21. There are no recalls on this car . Opon my own investigation after the incident, there are numerous complaints logged into NHTSA of a rust issue of the fuel line where it is clamped near the fuel tank. There is also reports of crack developing at the intank fuel pump connection. ALL Cobalts,G5 's and other variations of this vehicle should be recalled immediately and inspections of the fuel system be reported back to NHTSA. Was there a fire? My answer is "NOT YET".”
“FUEL LINE LEAKAGE - GAS LEAKS OUT QUICKLY UNTIL THE TANK IS EMPTY. THE CAR IS UNDRIVABLE IN THIS CONDITION, WHICH SEEMS TO BE A HUGELY COMMON PROBLEM WITH THE 2009 PONTIAC G5. A MASSIVE GAS LEAK IS A SAFETY CONCERN.”
“FUEL LEAK. OVER DRIVERS SIDE REAR WHEEL . FUEL FEED LINE IN AREA COVERED WITH MOON TAPE BEHIND HEAT SHIELD. PREVIOUSLY REPORTED A FUEL LEAK ON FEED LINE JUST BEYOND THE FUEL FILTER. NOW HAVE TWO FUEL LEAKS. FUEL RETURN LINE ALSO LOOKS CORRODED .”
“AROUND 127000 MILES I NOTICED A STRONG SMELL OF GASOLINE, AND A SMALL DRIP FROM UNDER MY CAR, AFTER TAKING A CLOSER LOOK I NOTICED THAT IT WAS GAS, AND IT WAS COMING FROM THE RETAINING CLIP THAT HOLDS THE FUEL/BRAKE LINES IN PLACE, I WAS NOT FINANCIALLY STABLE TO HAVE THIS REPAIRED AT THE TIME, AND IT WASN'T LEAKING TO BAD SO I LEFT IT GO, AFTER ABOUT 2-3 MORE WEEKS I WAS DRIVING AND NOTICED THAT I COULD LITERALLY SEE MY FUEL GAUGE DROPPING, I IMMEDIATELY PULLED OVER AND INSPECTED THE PROBLEM AREA AND SEE THAT THE CAR WAS DUMPING FUEL AND A VERY HIGH PRESSURIZED RATE, I ALSO TOOK NOTE THAT THE GAS WAS BEING SPRAYED ONTO THE HOT EXHAUST THAT IS ABOUT 4-6? AWAY FROM THE FUEL LINES, I GOT THE CAR HOME AND PARKED IT, AFTER DOING HOURS OF RESEARCH I SEEN THAT 95% OF THIS YEAR AND MODEL OF GM HAVE THIS ISSUE DUE TO THE HEAT SHIELDING ON THE FUEL LINES AFTER SEARCHING MY VIN IT SAYS THAT MY VEHICLE HAS NO ACTIVE RECALLS BUT I'VE SEEN COMPLAINT AFTER COMPLAINT ABOUT THIS ISSUE, NOT ONLY THAT IT IS EXTREMELY DANGEROUS THAT GAS IS BEING STAYED OUT UNDER PRESSURE WHICH IS CAUSING IT TO VAPORIZE AND BECOME EVEN MORE OF A FIRE HAZARD, NOT TO MENTION IT IS INCHES AWAY FROM…”
“MAJOR FUEL LEAK IN THE MAIN FUEL LINE BETWEEN TANK AND ENGINE DIRECLTY IN FRONT OF THE LEFT REAR WHEEL AND NEAR THE EXHAUST. THE LINE CORRODED FROM BEING COVERED WITH POOR INSULATION TAPE THAT ALLOWED MOISTURE BEHIND. EVAP LINE BAD TOO AND NOW CAUSING CHECK ENGINE LIGHT”
Showing 6 of 27 reports. Read every report on NHTSA.gov.
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 11, 2026NHTSA vehicle page
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.