GMC Terrain fuel smell problems

Filed Oct 22, 2026 · Fuel system · 92,000 miles · LA

The contact owns a 2018 GMC Terrain. The contact stated that while driving, the vehicle unexpectedly stopped. The contact exited the vehicle and there was an abnormally strong gasoline odor coming from the rear of the vehicle. The vehicle was towed and the tow truck operator stated that there was gasoline leaking underneath the front of the vehicle. The vehicle was towed to an independent mechanic and was diagnosed with high-pressure fuel pump failure. The mechanic referenced the federal safety agency Campaign Number: 18V358000 (Fuel System, Gasoline); as the possible cause of the failure. However, the VIN was not included in the recall. The contact stated that the “Engine Power Reduced" message was displayed. The mechanic associated the failure with the fuel system. The failure mileage was 92,000.

Filed Sep 24, 2026 · Fuel system · NY

The contact owns a 2018 GMC Terrain. The contact stated that while the vehicle was parked in the garage at the residence, there was fuel leaking from the vehicle from the fuel line. The contact stated that the fuel pump was replaced. There was a strong gasoline odor coming from the vehicle. The contact associated the failure with the federal safety agency Campaign Number: 18V358000 (Fuel System, Gasoline); however, the VIN was not included in the recall. The dealer was contacted by phone and made aware of the failure but stated that the repair was not covered because the VIN was not included in the recall.

Filed Sep 20, 2026 · Fuel system · NJ

I purchased this vehicle two weeks ago. It was my first time driving it since I bought it home from the dealer. I was on the highway driving about 55 mph in the left lane. All of a sudden the car started to slow down on its own going down to 15 mph without knowing what was happening. I tried to ease my way to the left and was almost hit by multiple vehicles. Once I got to the left lane the vehicle stopped running. I couldn’t start it. I noticed a pool of liquid on the right side of the vehicle. I also started to detect a strong smell of gasoline. I had to get towed off the road by calling 911 for assistance. The tow truck driver also confirmed that the liquid was gasoline. I had to get the car towed twice. It is now at my mechanic awaiting his inspection. I also spoke to the dealership. Unfortunately they are too far away for me to get the car there. I’m in limbo now. I am praying that the car is still under warranty. This was a very dangerous experience and it could have been worse. I did notice a recall for fuel system failure but I did not see it on my vehicles vin number.

Filed Jun 2, 2026 · Engine, Fuel system · AR

My car has started stalling and dying when i slow down, take off or when idling. No power when accelerated, and the smell of exhaust comes into my car. I was making a turn from a red light and my car spit, sputtered, and died right in the middle of the busy intersection. I was almost hit from the rear and another car had to go into on coming traffic to avoid T boning me. I took it to 2 different places to get a diagnosis reading and both places said it was a catalyst problem, and I was told that there was a recall about that because of engine oil clogging it up. My car has been using more oil than usual here lately and im guessing thats why. Now, im afraid to drive anywhere because I don't feel like it safe and the fact that my car doesn't run good enough to drive. I was told by more than 1 person that knows mechanics, that its a issue with the catalyst and that it had a recall on it but I never received one. This is a very concerning safety issue, and one that needs immediate attention before someone gets badly hurt (or worse) because of a bad car part . My car is literally just a lawn ornament now until I can get this issue resolved. I need my car to make a living and support my family. PLEASE, get the recall letters out and get this fixed before someone loses a life.

Filed May 18, 2026 · Fuel system · TX

Vehicle stalled while driving and would not restart. Strong gasoline smell present and on ground. Third occurrence. Vehicle stalled while driving at on busy road (safety issue both times). Strong raw gas smell. Would not crank afterward. Dash powered normally with check engine light. Happened previously around 27k miles in September 2025. Occurred again May 9, 2026. Occurred again today l, May 18, 2026. Vehicles is being towed to dealership again for the 3rd time

Filed May 8, 2026 · Fuel system · TX

Car reduced speed and smells of gas. Will not crank and will stall immediately and just stops immediately. Car has only 30,000 miles and it has stalled out for the second time with the same issue. The first time the car stalled on the freeway and I was almost hit from the back. This second time reduced speed and quickly shut off on a Main Street and was almost hit again. Car does not allow you to press the gas and coast during the incident.

Filed May 8, 2026 · Fuel system · TX

Car reduced speed and the smell of gas filled the car. Car shut off. Check engine light came on with reduced speed. This is the second time this has happened. Gas leaked onto ground from car. Car stalls immediately while driving and does not allow you to press the gas to keep moving. Almost hit from behind on Main Street.

Filed Mar 28, 2026 · Brakes, Engine · AL

1- at 71,000 miles in 2022 brake vacuum pump “exploded” broke into many small pieces in the middle of driving. Causing brakes to lock. Brake pedal was brick hard. Hard to maneuver the car out of traffic without causing a collision. Luckily car was not being driven at high speed. At time of repair costing $1,000 Mechanic informed me that the pump was made out of a non metal material and he could not fish the small particles out of the motor with a magnet. The motor would need to be taken apart, cleaned out and reassembled….. From this point forward the car drives in “low engine power mode” even with repairs completed and codes cleared. 2- 2 years later the same part “brake vacuum pump” exploded again. Another $1000 repair. At this time we discovered that the fine particles that were not removed from motor has now knocked the timing off by 8%. Also it has caused a knick in a seal causing an oil leak under 100k miles $1800 repair. After these extensive repairs…… The car emits gas fumes into cabin. The smell is so strong it can’t be parked in the garage because it circulates through the house. Even when car is not running. The Car can’t be driven because risk of fire or explosion from gas. Fuel system gets cleaned. Injectors replaced. The car temporarily runs without the gas smell. 2 weeks later the gas smell returns Come to find out the fuel pump failed. Search online and find there is a recall for fuel pumps in this same make model and year. But not this vin number. The car has been a headache from day 1. Recall the whole car at this point, to have so many faulty parts in such major systems of a car is crazy.

Filed Feb 25, 2026 · Engine, Fuel system · TX

On Febuary 14 2026 I was driving on the feeder of the freeway with speeds of 50 mph my car suddenly down shifted in the middle of driving started shaking real bad stalled wouldn’t start wouldn’t go in gear at all would just die and say engine power reduced. This is after it had just been at the dealership and they said all I needed was an update. It had to be towed and the dealership said it was my high pressure fuel pump had failed. They replaced it and gave me the car back. I staled the next morning going to work on the freeway going 70 mph same exact thing happened except this time I could smell gas so strongly. I had to sit on the side of the highway until it was picked up due to gas smell and fear of fire. They say a bolt broke off of the high pressure fuel pump they just installed

Filed Jan 7, 2026 · Engine, Fuel system · FL

The exhaust and emissions system appears to have failed or is malfunctioning, including the catalytic converter and potentially the exhaust manifold or upstream exhaust components. The engine and fuel/propulsion system are also affected, as evidenced by sputtering and drivability issues. The vehicle and affected components are available for inspection upon request. Exhaust and/or fuel fumes enter the passenger cabin, particularly when the heater or air conditioning is operating. This creates a risk of exposure to harmful exhaust gases, including potential carbon monoxide, which poses a serious health and safety risk to vehicle occupants. The vehicle also sputters and hesitates, which could lead to unsafe driving conditions, especially in traffic or at highway speeds. Yes. The issue has been confirmed through diagnostic trouble codes indicating catalytic converter efficiency failure. Despite replacement of spark plugs and sensors, the problem continues to recur, indicating an underlying exhaust or emissions system defect rather than routine maintenance. The vehicle has been inspected by service professionals for diagnostic purposes. The manufacturer has not physically inspected the vehicle, and no inspections have been performed by police or insurance representatives to date. The check engine light illuminated prior to and during the issue. Additional symptoms included engine sputtering, loss of smooth acceleration, and a strong exhaust or fuel odor inside the cabin when the HVAC system is in use. These symptoms have recurred over time despite repairs.