2015 Chevrolet Tahoe engine problems

Filed Sep 8, 2026 · Engine · TX

The lifters got stuck not even a month after I purchased the car and then I had them replaced and now its caused further issues in the engine. Its cost me thousands of dollars and I havent even had the car for 5 months.

Filed Mar 20, 2026 · Engine · TX

Had to have motor replaced due to faulty lifters which in turn damaged the motor. No, I didn’t check with dealers, independent service centers. However, it was inspected by an independent individual who handles these type of issues on Tahoes, Suburbans, etc. Lifter issues happened in November of 2025. My vehicle is still in the shop at this writing having a new motor installed. I have never been notified of any recall for this type of issue for my particular vehicle which seems to be a common issue. Also had issues with sensors and a/c.

Filed Dec 15, 2025 · Electrical, Engine · 165,880 miles · LA

The contact owns a 2015 Chevrolet Tahoe. The contact stated that while driving 65 MPH, the vehicle hesitated and the temperature gauge failed to function as needed, with an abnormally loud sound coming from the cooling fans. The check engine warning light illuminated, and a message about the battery was displayed, and a warning light about the battery was illuminated. The vehicle was taken to an independent mechanic, who diagnosed that the thermostat housing had failed and the wiring to the fan had failed. The vehicle was repaired. Several days later, the contact stated that on a separate occasion, the vehicle failed to accelerate as intended while depressing the accelerator pedal. The check engine warning light was illuminated. The vehicle was taken back to the independent mechanic, where it was diagnosed and determined that the catalytic converter had failed. The vehicle was repaired; however, the same day the vehicle was picked up from the independent mechanic, the check engine warning light illuminated. The vehicle was taken back to the independent mechanic, who diagnosed that the timing chain had failed. The vehicle remained at the dealer unrepaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 165,880.

Filed Sep 21, 2025 · Engine · AL

i got my oil changed and got a new air filter and my tahoe started acting like it was chugging put it on a machine said it was a spark in 7 cylinder got new plugs and wires and a new thermostat didnt fix it got a nee crank shaft was driving perfectly went to pass a driving doing 35 m an hr on a 55 m hr and when i did it acted like it was going to die i took it easy the two mikes home had it towed to dealership they said it was my lifter and would codt my 16000$ to fix it! i talked to 3 other mechanics and they informed me this particular engine has a recall for doing just this when it runs at 5.4 and swittchrs to 8 it sometimes blows a lifters , which is exactly what has happened if i hadnt been any cliser to home or was on the interstate this could of neen a really bad accident!

Filed Feb 22, 2025 · Engine, Fuel system · CA

While driving multiple times the vehicle has completely lost power or almost died in the middle of the roadway. It has been taken to the dealership multiple times and they are reporting transmission and catalytic converter issues, however these issues were present at 20,000 miles and taken back to the dealership to be fixed. This is now a reoccurrence of issue and the dealership refused to warranty or fix the reoccurring issue. Loss of power while driving and random acceleration have occurred and almost caused accidents on multiple occasions

Filed Dec 13, 2024 · Brakes, Engine · 5,000 miles · MI · 1 injury

The contact owns a 2015 Chevrolet Tahoe. The contact stated that while driving from a complete stop and while driving at various speeds, the vehicle made an abnormal whining sound. There was no warning light illuminated. The vehicle was taken to the local dealer, where the transmission was replaced. The contact stated that after retrieving the vehicle from the dealer while driving 10-15 MPH, the brake pedal was depressed but was significantly firm and failed to respond. The contact drove into a curb and struck a parking sign pole. The air bags did not deploy. The contact stated that the failure exacerbated pre-existing injuries. The dealer was contacted and advised the contact to restart the vehicle and depress the brake pedal to verify whether the brake pedal was operable. The contact followed the dealer's instructions, and the brake pedal responded as needed; however, the vehicle was towed to the residence because the contact was concerned about driving the vehicle. The vehicle was then towed to the dealer, where it was diagnosed and determined that the vacuum pump needed to be replaced. The dealer replaced the vacuum pump; however, the failure recurred while driving. The check engine warning light was illuminated. The vehicle was taken back to the dealer, where it was diagnosed and determined that the lifters had failed. The vehicle was not repaired. The vehicle was taken to a second dealer, Midway Chevrolet Plainwell Auto Dealer (381 12th St, Plainwell, MI 49080), where it was diagnosed that the fuel pump wires, the transfer case oil and seal, the engine oil coolant hose, the valve cover gasket, and other unknown parts needed to be replaced. Additionally, the dealer determined that the ball joints needed to be replaced, and an alignment needed to be performed. The dealer also determined that the air ride compressor was noisy. The vehicle was not repaired. The vehicle was then taken to a third dealer, Heritage Chevrolet, Inc. (350 W Dickman Rd, Battle Creek, MI 49037), where it was diagnosed with an oil leak.

Filed Nov 22, 2024 · Driver assistance, Engine · 85,000 miles · GA

The contact owns a 2015 Chevrolet Tahoe. The contact stated that while stopped and attempting to make a left turn, the vehicle started jerking, failed to accelerate as intended, and lost motive power. The check engine and traction control warning lights were illuminated. The vehicle was pulled over to the side of the road and turned off. The vehicle was restarted, and the warning lights remained illuminated. The vehicle was taken to an independent mechanic where it was diagnosed and determined that the #7 valve lifter had collapsed and needed to be replaced. The vehicle was scheduled to be repaired. The manufacturer was notified of the failure. The failure mileage was approximately 85,000.

Filed Jun 24, 2024 · Engine, Fuel system · 65,000 miles · TX

The contact owns a 2015 Chevrolet Tahoe. The contact stated that while driving at an undisclosed speed, the check engine warning light illuminated, and the vehicle shuddered. The vehicle was taken to a dealer where it was diagnosed with a high-pressure fuel pump leak. The vehicle was not repaired. The contact related the failure to the federal safety agency Campaign Number: 19V837000 (Fuel System, Gasoline) however, the model year was not included in the recall. The dealer confirmed that the vehicle was not included in the recall. The manufacturer was made aware of the failure and also confirmed that the vehicle was not included in the recall. The failure mileage was approximately 65,000.

Filed Mar 29, 2024 · Electrical, Engine · 149,000 miles · GA

The contact owns a 2015 Chevrolet Tahoe. The contact stated while driving 30-45 MPH, the check engine warning light illuminated. Additionally, the contact stated that while driving at an undisclosed speed at night, the vehicle shut off inadvertently. The contact was able to veer to the side of the road. The contact stated that he opened the hood and moved the battery cables around, and the vehicle was able to restart. The contact stated that the vehicle would temporarily lose electrical power while driving. The vehicle was taken to an independent mechanic, where the contact was advised to add a fuel additive in the vehicle. The contact followed the recommendation, and the check engine warning light was no longer illuminated; however, the failure later recurred. The vehicle was taken back to the independent mechanic, where it was diagnosed that the transmission had failed and needed to be replaced. The vehicle was not repaired. The dealer and the manufacturer were not notified of the failure. The failure mileage was approximately 149,000.

Filed Dec 16, 2023 · Engine, Fuel system · NJ

I was constantly smelling a strong odor of gas coming from the inside/outside of my 2015 Chevy Tahoe. When I purchased the vehicle in 10/23 everything appeared fine. I researched the internet to determine what the problem could be & found dozens of similar situations. People saying the fuel line rubs the undercarriage of the vehicle causing a pin hole size in the fuel line causing it to leak gas. Currently my vehicle is in the shop and the problem is TBD.