The contact owns a 2008 Pontiac G5. The contact stated that while making a right turn in an intersection the vehicle failed to accelerate causing a crash with a second vehicle. During the crash, the air bags did not deploy. The driver sustained a shoulder and back injury and the passenger sustained a left torso injury which required medical treatment. A police report was taken at the scene and the vehicle was towed away. The cause of the failure was not determined. The manufacturer and local dealer were not notified of the failures. The failure mileage was undetermined.
Engine & cooling
Pontiac G5 Engine problems by year
20 complaints filed with NHTSA about the Pontiac G5's engine & cooling. Stalling, loss of power, oil consumption, overheating, head gaskets, timing chains and engine failure.
Engine complaints by model year
Latest G5 engine complaints
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...
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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 the exhaust and directly below the fuel tank... This issue should defiantly be addressed with gm and be submitted for recall in my opinion, this issue only happens when the vehicle is on or the key is turned to the on position and the fuel pump is primed and running to charge the fuel lines, after the vehicle is turned off the leak stops after the fuel line has drained onto the ground causing another fire hazard and a environmental hazard making it an issue to start the car again due to no gas being in the lines, in my case I have to turn the key to on and give the fuel pump about 15 seconds to prime and pump gas into the lines, this issue has made it impossible to drive as I dump a gallon of fuel every 2-3 miles. *Tr
Car speeds up without pressing the gas petal and it's hard to stop it when in motion on interstate it stopped out of nowhere and turned off with an 18 wheeler behind me like to have killed me got car in neutral finally forcefully praying that jesus protect me because it would not shift into gear and pulled over to side of road. I'm scared to drive my car. Driving down road steering wheel locks up causes engine to shake whole car and backfires my car rides really rough. Messed up power steering has caused my...
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blinkers not to work now. I'm really sad. The engine light comes on every time I put gas in my car. The transmission acts up and when driving my car it's like it doesn't know what gear it should be in so it jerks really bad.
On the26th of june 2018 I was leaving work when all if a sudden when I started it up there was bad knocking coming from engine when increasing rpm's. I took it to mechanic and requested my oil to be changed and to check why it was knocking. At that point I was told there was metal shavings in the old oil as well as filter. I was shown this by the mechanic. He stated berrings were going and I would have to rebuild or replace the engine. Confirmed by another mechanic. Upon returning home about 30 min later I noticed...
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fresh oil under my car. I took it back and was shown a major oil leak at the timing chain cover. Turns out the bolt came loose. He tightened and oil stopped leaking. This was probably the cause of bearings going out. This was a sudden issue and not over a period of time. The car has 45k original miles on it. How can this be? 10 Years old but only 45k miles.
I was driving down the highway at 70mph (posted speed limit) when the rpm gauge dropped to 0 and the car lost power. I was able to ease my way onto the shoulder but with no power breaks I had to mash down the break petal finally coming to a stop. The vehicle was towed back into town and am still waiting to find out the cause of this issue. The car has less than 80,000 miles on it! I have dealt with the ignition switch recall, the timing chain has been replaced twice already, the headlights and break lights have to be changed every 3 months just about, and now this!
Timing chain is off time after so many miles the vehicle was stationary and still is stationary due to a rattle noise and the engine not wanting to run properly.
Tl* the contact owns a 2007 pontiac g5. The contact stated that while in park, the contact noticed that there was fuel leaking from the fuel tank and the engine warning light illuminated. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was 150,000.
When pep boys first removed the passenger rear engine cradle bolt back in march, the factory nut broke off from being welded to the car body. When a local mechanic recently removed the bolt for related service, he showed it to me. The threads on the middle of the bolt shaft were all seemingly chewed up. The local mechanics best guess was that the air conditioner condenser drains on to that area, which originally weakened the factory welded nut, and causing corrosion on the engine cradle bolt. The bolt won't last...
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long, and I have ordered a replacement bolt, at my expense, to replace the prematurely 'worn' original bolt. Unfortunately, not much can be done to restore having a factory welded nut to receive said bolt. Had I not commissioned the additional work, I may have had a serious accident in the future, unaware of the bolt corroding away! *Tr
Tl* the contact owns a 2009 pontiac g5. While driving various speeds, the vehicle would suddenly lose power before stalling. The failure occurred on multiple occasions. The contact also indicated that when lifting off the accelerator pedal, the vehicle would not respond for approximately 2 to 3 seconds and the speed would remain the same before the vehicle would decelerate. The vehicle was taken to an independent mechanic who diagnosed that the crank sensor was faulty. The crank sensor was replaced, but the failure...
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recurred. The contact examined the vehicle and discovered that the crank sensor connector wire was faulty. The vehicle was not repaired and the manufacturer was not notified. The failure mileage was 87,000.
Tl* the contact owns a 2008 pontiac g5. The contact stated that when attempting to stop, the vehicle suddenly stalled as the check engine warning light illuminated. The engine was restarted and the vehicle operated as normal. The failure recurred on multiple occasions. The vehicle was not diagnosed or repaired. The manufacturer was not notified. The failure mileage was 90,325.
As I was turning onto the highway, on my way to drop my son off at daycare before work, early march 27th, 2014, my car would not move from the stop sign I was stopped at. It was extremely scary, especially with my young son in the back seat. My car is a manual, and the stick shift would slip into each slot but not engage the gear, which lead me to assume that the transmission had gone out. My car remained running, even with my foot off the clutch, and in any gear, including reverse. I ended up having to push my car...
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off to the side of the road and highway, with my son still inside. Although I felt that this was not the safest situation for my son to be in, I felt that the alternative of remaining immobile in the flow of traffic may get us in a rear-end collision, or having my son standing on the side of the highway while I pushed the car may get him hurt. I was able to get my car towed to my house, but the cost to repair or replace the transmission at a shop is an outrageous price, and I am not able to find a transmission for sale at any auto parts store because it seems that they are no longer able to acquire the part. Most of the mechanics I have spoke with have stated that they have repaired multiple pontiac g5 transmissions in the recent months. After all the news about gm vehicles, I feel that I may have made a bad investment when purchasing my car brand new and having such a major issue occur this soon. More so, I am concerned by the way my car broke down. It was very dangerous to have my car unexpectedly stop moving as I was turning onto the highway and in the flow of traffic, but all I could think is what I would have done if my transmission had gone out while traveling at high speed or in an area without a place to pull off, it is a scary thought. *Tr
At the end of september 2013 I noticed a disturbing noise when I started my car. It was a loud rattling sound that lasted about 3 seconds when cranking my car. To my surprise the timing chain had snapped in half. On october 20-21, 2013, the timing chain set was removed and replaced by a trusted mechanic who informed me that I was lucky the engine had not been damaged. My complaint in question is why at only 54,540 miles did the timing chain snap in half? My next question is have there been any other complaints...
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made by other owners or manufacturers of this model relating to this issue? I was frustrated as it was having to have the set replaced at only 54,540 miles, but I am even more frustrated with the latest recalls on my car (13454 and 14063). Especially when I learned gm had known the potential for this recall for an extensive amount of time. I loved this car when I got it, but now I have begun to question the entire integrity of my vehicle structurally, electrically, and mechanically. Even if nothing results from filing this complaint, honestly all I want is a human response that gives me some sort of belief that someone gives a[ [redacted]] about this matter. Information redacted pursuant to the freedom of information act (foia), 5 u.S.C. 552(B)(6). *Tr
While driving on icy roads, the car began to slide and spin out of control. As I attempted to correct the motion of the car, the engine switched off. And because the engine had switched off, it became impossible to turn the steering wheel. The car spun around at least 3 complete rotations (of 360 degrees) before sliding to a stop on the side of the road. The gear shift was still in drive, and could not immediately be changed to park. But naturally, the car had to be restarted, which it finally did after much effort. And the car could be put into park after the engine had restarted. *Tr
I was just driving home an on the freeway the car just stopped, I was lucky that I could just coast in to a safe area. After awhile I turned it on an it started up.. The same thing happened today 2/26/14 I stopped at the post office and it would not turn on I waited about ten minutes and it started. It seems to be the ignition. *Tr
Tl* the contact owns a 2009 pontiact g5. The contact stated that while driving approximately 35 mph, the vehicle stalled multiple times. The vehicle was taken to an authorized dealer, who was not unable to determine the problem. The vehicle was not repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 100.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked daily. Complaints are owners' own reports and are not verified. How we use the data