Seven problems related to other fuel system tank assembly have been reported for the 2015 Chevrolet Tahoe. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2015 Chevrolet Tahoe based on all problems reported for the 2015 Tahoe.
Large fuel leak coming from line that rubs body above gas tank. Gas was pouring out causing a very hazardous condition. When noticed vehicle was stationary in a parking lot. Gm knows that there have been issues as there is a TSB # 17-na-304 dated September of 2017. A quick google search reveals dozens of like reports with one causing a complete loss of vehicle due to fire. This is of major concern as loss of life from this engineering failure is high. Children could be restrained in car seats in rear of vehicle just above fuel for fire.
Upon returning from work , my wife complained of a strong odor of fuel in and outside of the vehicle. After inspecting the engine, interior, and exterior of the vehicle a small running fuel leak was discovered beneath the vehicle on the driver side, immediately forward of the fuel tank . The leak left a small puddle of fuel under the vehicle, which continued to leak until fuel pressure dissipated 5-10 minutes later. Upon inspection by mechanics at my local gm dealer , it was found that a hole was worn into the fuel supply (pressure) line due to chafing and rubbing of the line against the structure (frame) of the vehicle . This problem occurred any time the vehicle was running, whether it was in motion or not. The problem occurred on 10/07/2020. The cause of this problem was due to the fuel line being insufficiently protected from chafing and vibration. The new fuel line came with a sleeve protecting the affected area. This appears to be an engineering deficiency on 2015 Chevrolet Tahoe models.
Fuel starts leaking from gas tank about 2 minutes into the car gets turned on.
The fuel is leaking from the top of the fuel tank. It only leaks if the vehicle is running. This an obvious safety hazard as the leaking gas is near the hot exhaust and electrical wires.
Tahoe is used to commute to owner's profession roughly 20 miles every week day. One day after driving home, Tahoe had strong fuel odor while sitting in owner's garage. It would then also have similar odor when initially starting the car. Brought the Tahoe to blasius Chevrolet in waterbury, CT. Tahoe is under 60,000 miles and still under powertrain warranty. They stated that "fuel line chewed threw buy (sic) mouse. " owner asked for a picture of the pinhole leak cause by the mouse. Image (which is attached) illustrates damage that could not possibly be caused by an animal. It is smoothly rubbed down and shows no chew marks and is in one specific spot. Dealer refused to use warranty to cover the repair, even though its not normal wear and tear, could not have been caused by an animal and not related to anything done to the car by owner. Only work that has been completed on the Tahoe has been by the dealership. This seems to be a recurring issue with 2015 Tahoes around the 60k miles mark. The fuel line is worn down by rubbing against something near the fuel tank. This is a manufacturing defect and expensive repair that should not be covered by the consumer considering a fuel line is not a part that should "get worn down" over time. Fuel leaking on the engine could have been catastrophic if it was not caught in time.
Vehicle did not want to start when cold. Would take 2-3 times to get engine to turn over. After driving, the smell of gasoline was undeniable. Brought vehicle in to local mechanic and he discovered the fuel hose had chaffed and fuel was spraying out and puddling on top of fuel tank. He dropped fuel tank and replaced fuel line. Fuel line that was removed had no protection on it. Replacement part had a corrugated loom protecting fuel line. I am still in possession of damaged fuel line in question.
Tl-the contact owns a 2015 Chevrolet Tahoe. The contact stated that while driving approximately 65 mph, noticed that fuel was leaking from the fuel tank. The vehicle was driven to the dealer weseloh Chevrolet carlsbad California 760-438-1001, they determined that a fuel feeder line was defective and needed replacement. The vehicle was repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 84,000. Bp.
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