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Resources for the Repair and Maintenance of your Pontiac G3

Pontiac G3 Models:

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Pontiac G3 Problems

Exhaust & Emissions -- Verified

A Loose or worn gas cap may cause Check Engine Light to illuminate.

Drive Train -- Verified

The speedometer may stop functioning with code P0722 stored in the powertrain control module (PCM). This may be caused by a worn speedometer gear due to coolant contamination of the transmission fluid. If contamination is found the radiator is most likely at fault. The transmission should also be thoroughly inspected and repaired or replaced as required.

Brakes -- Verified

Front brake rotors can wear causing a pulsation felt in the brake pedal. Our technicians often recommend replacement of the front rotors and brake pads as the best option to correct this condition.

Engine -- Verified

Extended life coolant may become contaminated and require cooling system service before the recommended 150,000 miles.

Pontiac G3 Questions and Answers

Visitor, 2009 Pontiac G3, 1.6L 4 Cylinder, Rapid City, SD

How do I find an exploded view of the inside locking mechanism on the drivers doors so that I can fix this thing. Went out of warranty by 6000 miles. Need to know how to remove the panel of drive...

mssljackson, 2009 Pontiac G3, 1.6L 4 Cylinder, Orlando, FL

I have checked the tire pressure and the tpms light will not go off. Also, the check engine light is on. Are these things related? What type if speedometer system does my car have?

IceQueenMama, 2009 Pontiac G3, 1.6L 4 Cylinder, Muskegon, MI

Can u do it urself? Does the filter have to be changed as well? I do mostly highway driving. Over 35,000 miles on it.

Mrs. StraightSix, 2009 Pontiac G3, 1.6L 4 Cylinder, Fitchburg, MA

I have a 2009 pontiac G3. It is sputtering and putting in gear. Shifts fine and clutch feels the same as always but its sputters in gear and then takes off. Slave cylinder maybe? Clutch?

natchez65, 2009 Pontiac G3, 1.6L 4 Cylinder, Ball, LA

work for one evening and night stop working next morning

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Pontiac G3 Reviews

I got this G3 on the CASH 4 CLUNKERS program. Base model, electric nothing! But the stereo was mp3 and aux standard, so good enough.
Like most Aveo stories, the stock tires (Kumho, never again) were bald at less than 30k. At 40k, I had to replace an emission coil (drive train warrenty). Then at 58k "something" broke in the tranny; they were not clear as to what that was... had to replace the Final drive gear and rebuild the tranny (no speedo, no odo, no tacho; would not shift out of 3rd). Then at 62k... exact same symptoms. When i brought it in I was told that the radiator (somehow) leaked coolant into the transmission line... thus corrupting the entire tranny. My MAJOR GUARD service warranty expired at 60k. How convenient that the radiator wasn't at fault during the first transmission rebuild at 58k when it would have been covered. Then, I was dutifully informed that since my radiator was not covered, or part of the power train, and since it was responsible for ruining the transmission; the tranny was void of the power train warranty... final assessment -- $600 out of pocket for a new radiator, $5k oop for transmission!
The only saving grace in this story is that I called GM(Pontiac) and insisted they honor my power train warranty. They sent a specialist to work something out with the Dealership. 3 weeks later (only 1 of which they decided to let me have free rental car), GM decided that they would cover all the repair costs, if I would make a $1k deductible. Now my G3 has a new tranny, good for a new 100k... and radiator. I have had it now for less than 300 miles. Its almost a month away from it I can't quite remember the performance difference. The steering definitely feels much tighter... it was much easier to turn the wheel before. It accelerates great... maybe even better than before... Definitely enough to question, that it may not be the same Japanese transmission as the original.
My only other major concern re: the car over all is that it seems to eat through tires! It handles pretty well so i drive it hard through the corners. But that alone can't account for wearing the outer shoulders of the both fronts and rears leaving almost new inner shoulders could it? Could it be the very visible negative camber on the rear? For the money (less than $9k initial) not a bad car. For some reason I've always/only owned GM's... ('82 Buick Skylark, '95 Geo Storm, '02 Cavaleir, '00 Z2Blazer, '09 G3.

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