2019 Chevrolet Tahoe fuel system problems

Filed May 23, 2026 · Engine, Fuel system · HI

While driving, the engine started to shutter and run rough. Pulled over to check and see if everything was ok. When restarting engine it developed a ticking noise which got worse and worse. We then made an appointment at a transmission specialist to get it serviced. While driving there the engine started experiencing engine failure with loss of power and loud ticking noise. Diagnostic from trans shop showed issues with engine and cylinder 4 misfire detected. Yes, the vehicle can be inspected upon request. Safety was put at risk while driving when engine started to fail. Had to pull over and have towed. Independent service center has confirmed issues. Report in attachments. No warning lamps or messages appeared prior to failure issues. The issues first started on March 18th 2026. SUV has been un drivable since. We have been unable to find a repair shop who is willing to do the repairs needed. The vehicle really needs a whole new engine.

Filed Jan 22, 2026 · Engine, Fuel system · CA

What component or system failed or malfunctioned, and is it available for inspection upon request? Complete engine failure. 2nd time this engine failed cylinder 4 bent rod. Cylinder 7 and camshaft. How was your safety or the safety of others put at risk? Yes. Loss of power on busy highway. Trying to navigate to the shoulder through 5 lanes of high speed traffic. Has the problem been reproduced or confirmed by a dealer or independent service center? Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? Yes. I have a copy of a manufacture technical bulletin confirming the problem and service records. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? No1

Filed May 11, 2025 · Engine, Fuel system · PA

Active Fuel Management for the automobile variable displacement technology was the issue. 6.2L V8 L87 engine has created the following issues- Cylinder deactivation issues transmission issues Multiple camshaft issues include camshaft lift issues Fuel system problems

Filed Apr 30, 2025 · Acceleration, Engine · TX

While attempting to accelerate to merge onto interstate/freeway from highway speed of 55mph, experienced significant engine misfire & loss of speed. This happened less than 40 days after purchase of this used vehicle from local dealership, with 30 day "warranty". Vehicle is currently NOT safe to drive.

Filed Mar 18, 2025 · Engine, Fuel system · TX

Lot white smoke for tail pipe, noise came in the motor, leak gas for tailpipe

Filed Feb 26, 2025 · Engine, Fuel system · TX

Not power, lot blue smoke, excessive consumption of engine oil, noise in the motor, like something is broken in it.

Filed Jul 19, 2024 · Engine, Fuel system · MI

In March of 2023, my 2019 Chevy Tahoe began having episodes where while driving there would be no gas power. The needle on the speedometer would start dropping to zero and the truck would sound like it was in neutral without notice putting everyon in the vehicle and outside of the vehicle at risk. My kids travel long distance for their AAA sports. Then all of a sudden there would be a loud noise (sound like hitting a rock with a sledge hammer) and you would feel the jarring noise and it would engage again. It was taken into the dealer and they found nothing wrong with it, couldn't duplicate the problem. This was at approximately 128,000 miles. On and off it happened all from March through April 2023 without notice, on the expressway traveling at 70 mph and having no control over the speed of the vehicle. In April, it became more apparent that when you hit 50 mph and 70 mph it was happening on cue, at 130,000 miles. Took it to the dealer again in April 2023, gave them the information and all they told me was that it was the transmission, $12,000 and it would be $500 to just take it apart to confirm, no error code was scanning and if I wanted to trade it in they would get a sales person. I spoke with the sales person who couldn't help because the balance on the loan is $28,000. Went back to the sales to get the car and a different service person helped me and couldn't find the truck. The truck had never been entered into anything in the service department. I took the truck home and it has sat in my driveway. It is a shame that you purchase a $70,000 vehicle and cannot get quality service from the dealer and a vehicle that doesn't make it past 130,000 miles. We have a 2013 Ford Edge that has 358,000 miles on it. What does that say about Chevy currently? Currently I have been starting the vehicle and driving it down my block and back daily to keep it from deteriorating, it cannot go over 20 mph without the gas power failing. I am hoping someone can help.

Filed Jul 12, 2024 · Fuel system, Transmission · FL

This vehicle is owned by the City of Fort Lauderdale Police Department. We are submitting complaints for multiple Tahoe's that have stopped during operation causing extreme danger to our staff and other drivers in the city. The cause is always bad fuel pumps and our units have had to have the pumps replaced in some cases multiple times. 7-12-23 Stalled in intersection and turned off Engine wont start Will start again after several minutes CHECK UNIT CODE P2635 PINPOINT TEST NEED FUEL PUMP 2-12-24 Sputters and stalls and stumbles CHECK UNIT NO ENGINE LIGHT AND NO CODES. REPLACE FUEL PUMP DRIVER MODULE

Filed Jul 12, 2024 · Fuel system, Transmission · FL

This vehicle is owned by the City of Fort Lauderdale Police Department. We are submitting complaints for multiple Tahoe's that have stopped during operation causing extreme danger to our staff and other drivers in the city. The cause is always bad fuel pumps and our units have had to have the pumps replaced in some cases multiple times. 7-11-23 Driver noted the unit stalls while driving. they couldn't get past 5mph without stalling. check engine light on. tried starting unit multiple times. officer was unable to get the unit to turn over. unit was towed in by westway around 0100AM CHEK UNIT CODES P2635 PINPINT TEST NEED FUEL PUMP 02-12-24 Stalls over and over again Cause- Performed a DTC scan and found codes (P2635) fuel pump flow performance and (P018B) fuel pressure sensor performance. With pinpoint test I found that the fuel pump and module assembly need replacement at this time! Correction- Replaced and tested the fuel pump

Filed Jul 12, 2024 · Fuel system, Transmission · FL

This vehicle is owned by the City of Fort Lauderdale Police Department. We are submitting complaints for multiple Tahoe's that have stopped during operation causing extreme danger to our staff and other drivers in the city. The cause is always bad fuel pumps and our units have had to have the pumps replaced in some cases multiple times. 03-04-24 Engine sputtering Scanned vehicle and codes P2635 fuel pump low fuel/performance was detected. Ordered fuel pump and fuel pump module.