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2008 Pontiac G5: fuel leak

15 of the 115 complaints about the 2008 Pontiac G5 describe fuel leak.

owner complaints
15
of this car's complaints
13%
typical mileage
83,658
recalls
1
Is there a fix? There is 1 recall and 4 service bulletins for this area of the car. See below

Fuel leak by model year

What owners say

Filed Mar 27, 2025 · Fuel system · PA

1. Fuel Leak 2. Fuel leaking in driveway, car has potential to catch fire if driven 3. Suspected leak and odor was reported 4 years ago. Dealer said the recall did not apply to my car. After receiving an email reply back from GMLegalUpdate department indicating they would cover the "fuel line" under special coverage, the dealer looked at the car. Dealer said they couldn't find any leak. Now the leak is very apparent when you start the car. Significant gas leaks onto the ground. After speaking to GM at 866‑790‑5600, GM says that my VIN No does not apply to the special coverage. Now they won't honor the letter. A service bulletin 12191B has been issued for this problem "regardless of the vehicle's age or mileage" but it seems from numerous posts GM pawns this problem off as the car's Vin No does not apply to their vehicle.

Filed Oct 3, 2020 · Fuel system · VA

Leaky fuel lines toward the left rear wheel well. Large puddles of gasoline under the car when parked. Visible gas leak

Filed May 4, 2020 · Fuel system · 83,658 miles · PA

Car leaks gas toward front of car driver side after it has been running. It also has an odor of gas radiating around the car after it has been run. This car has been recalled for this problem in regionally hot states. Gm alan adler said they would repair cars that has the problem outside of the designated states, but pontiac refuses. See att.

Filed May 31, 2019 · Fuel system · 31,903 miles · SC

My 2008 g5 has a strong gas smell both inside and outside the car. I checked for recalls and saw that 2008 g5's have been recalled for a fuel leak due to a defective fuel pump module but only in hotter states. I'm in sc and we certainly should qualify as a hotter state with temps in the upper 90's in the spring. Gm recalled the '06 and '07 g5's in sc for fuel leaks so they should recall the '08 model too since it has the same problem (recall 09v‑419) my car has only 31,903 miles on it so I should not be stuck with the cost of repairing an ongoing fuel leak problem that gm has had with '06-'08 models. My mother bought this car new from the dealership and it has been garage kept and driven very little. Gm should repair all the 2008 g5's that are leaking fuel, not just the ones in a select few states. Fuel leaks are dangerous and could result in a fire in any state.

Filed Nov 9, 2018 · Fuel system · 90,915 miles · MA

Tl* the contact owns a 2008 pontiac g5. Periodically, the contact noticed an odor of fuel inside the vehicle and the check engine warning indicator illuminated. The contact stated that the odor went away. When the vehicle was taken to an independent mechanic for routine service, the technician diagnosed a fuel leak in an unknown part of the vehicle and recommended that the fuel lines be replaced. The dealer was not called. The manufacturer was not made aware of the failure. The vehicle was not repaired. The failure mileage was 90,915.

Filed Sep 25, 2017 · Fuel system, Suspension · 158,000 miles · AL

Hi! I noticed very strong gas fumes after filling my car with gas. I took the car to the dealer on friday, september 22, 2017 and had the fuel pump replaced, after filling my car with a tank of gas, I noticed strong fumes in the car. I noticed the fuel needle went from 401 miles to 388. I drove home parked my car in the garage moments later my daughter arrived home and began complaining about the strong gas fumes in the garage and gas leaking underneath my car. I got out of bed went into the garage, then I smelt heavy gas fumes and saw the gas on my garage floor. I backed the car out of the garage and left the garage door open.

Filed Dec 5, 2016 · Fuel system · 163,000 miles · IN

Fuel line rusted out causing fuel leakage. The bracket that holds fuel lines also retains salt and brine deposits and is of poor design causing fuel lines to rust through one spot only. It is located a foot in front of rear driver side tire underneath. About a inch away from exhaust. Fuel pours out a steady drop and puddles underneath hot exhaust. This is not the fuel pump recall problem already listed. Repair costs $951.87 at dealership. Looking underneath car all the line was rust free except this fuel bracket area. This is very dangerous to have fuel leaking on to pavement and under hot exhaust. As gas evaporates its fumes could start a fire. A person may drive for many miles without noticing the fuel leaking. The gas fumes enter the inside of car. If a person smokes this could also cause explosion all from poor design and no recall to replace fuel line and bracket. The fuel leak is constant stationary, in motion on street and highway. This is very dangerous.

Filed Oct 7, 2016 · Fuel system · 77,000 miles · VA

2008 pontiac g5, approx. 77,000 miles. Failed annual inspection due to fuel leak in fuel line, drivers side, rear, just in front of tire. Close inspection of fuel line, showed it to be the fuel return line, that had rusted a small hole due to shielding that was around the line in that area retaining moisture (shielding was fiberglass looking in appearance and covered in silver covering and most likely is a heat shield as like are about a foot from the exhaust pipe. This is a poor design as it retains moisture around the line causing it to rust. Dealer estimate to repair (replacing entire fuel line was $700+. This appears to be a common issue with these cars (chevy and saturn versions too) suggest dealers recall these cars and replace with stainless fuel lines if lines are rusty.

Filed Jul 5, 2016 · Fuel system · TX

Tl* the contact owns a 2008 pontiac g5. Whether driving or parked, the vehicle leaked fuel from the top of the fuel tank. The vehicle was not diagnosed or repaired. The VIN was excluded from the federal safety agency campaign number: 12v459000 (fuel system, gasoline). The manufacturer was not notified. The failure mileage was not available.

Filed Jan 29, 2016 · Fuel system · 63,989 miles · KY

Noticed a strong fuel smell coming from rear of vehicle after returning from a trip to the store. Looked under vehicle and saw a puddle of fuel forming on drivers side in front of rear tire. Looked at the undercarriage and saw a steady fuel leak coming from the fuel line beneath the silver heat shield wrap. I removed the wrap to find that the fuel line had rusted through around the plastic mounting clip. This is a serious safety defect as the fuel line run inches from the exhaust pipe hence the manufacturers heat shield wrap attempting to shield the fuel lines from the exhaust pipe. This is a poor design as it is located just in front of the driver side rear tire. The heat shield wrap gets saturated from water from the tire then has no place to go, accelerating corrosion. My vehicle only has 63,000 miles. This should never had happened. Request gm correct the design and repair my vehicle thus eliminating future occurrences.

Filed Dec 30, 2015 · Fuel system · 96,000 miles · NC

After noticing a gasoline smell and a puddle collecting underneath my vehicle while it was in park, I took it to the dealer to see what was going on with my vehicle. The dealership then informed me that my vehicle was seriously leaking fuel. They told me that the fuel line from the tank to the engine was completely rusted through. The price to replace this part is completely ridiculous and I am highly upset that no one has told me that this part was starting to rust for the last year. My car is only 9 years old and doesn't even have 100,000 miles on it. This is a highly unsafe issue that requires the company to do a recall on because no one should be driving their vehicle when there is a fuel leak!!!!

Filed Nov 3, 2015 · Fuel system · 100,000 miles · IL

Noticed a fuel smell in the car, then had trouble starting the car. After a few days there was a puddle of liquid under my car as I left the grocery store. Fuel smell was extremely strong. Got home and looked under car and found a fuel hose leaking gas. Took into a mechanic who found the whole fuel line to be rotted! Its a 7 year old car with slightly over 100,000 miles on it. Mechanic said he has never seen anything like this and can't believe their isn't a recall issued on this. This is very unsafe and could have seriously harmed myself and my children had a fire started.

Service bulletins that may apply

Related recalls

Fuel system, gasoline: delivery: fuel pumpReported September 19, 2012 · 49,768 vehicles affected
What is wrong
General Motors (GM) is recalling certain model year 2007 Chevrolet Equinox and Pontiac Torrent vehicles originally sold or currently registered in Arizona, California, Nevada, and Texas; model year 2007 Chevrolet Cobalt, Pontiac G5, and Saturn ION vehicles originally sold, or currently registered in, Arizona, California, Florida, Nevada, or Texas; model year 2008 Chevrolet Cobalt and Pontiac G5 vehicles originally sold, or currently registered in, Arizona; and model year 2009 Chevrolet Cobalt and Pontiac G5 vehicles originally sold, or currently registered in, Arkansas, Arizona, California, Nevada, Oklahoma, or Texas. Some of these vehicles have a condition in which the plastic supply or return port on the fuel pump module may crack, which could cause a fuel leak.
Risk
Fuel leakage in the presence of an ignition source may result in a fire.
Remedy
GM will notify owners, and dealers will replace the fuel pump module, free of charge. Notification to owners began on on November 21, 2012. Owners were instructed to not bring their vehicles in for repair until January 2013. Owners may contact General Motors at 1‑800‑521‑7300.

Recall number 12V459000 · Recall details

Questions about the 2008 Pontiac G5 fuel leak

Is fuel leak a common problem on the 2008 Pontiac G5?

15 of 115 owner complaints about the 2008 Pontiac G5 (13%) mention fuel leak. The model year with the most reports is 2007.

Is there a recall or service bulletin for this on the 2008 Pontiac G5?

There is 1 recall and 4 service bulletins for the same area of the car. Check them below with your VIN.

Other symptoms on the 2008 Pontiac G5

Fuel smell 18Fuel pump 13No deployment 9Airbag light 7Stalling 6Harsh shifting 5

All model years of the Pontiac G5

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