This Problem Across All Years
Summary: Sudden loss of engine power while driving due to lifter failure. Details: While driving my 2022 Chevrolet Suburban equipped with the 5.3L V8 (RPO L84), the engine suddenly lost power without warning. The vehicle began misfiring and lost propulsion in traffic, creating a hazardous situation. I was unable to maintain normal speed and had to maneuver to safety while the truck rapidly lost power. The dealer later diagnosed the problem as a collapsed lifter/valvetrain failure — an issue that GM has already documented in service bulletins (PIP5776G, 23-NA-043) and a service update (N212353840). These bulletins show GM has long been aware of defective lifters in 5.3L engines. This is not just a drivability concern. A sudden engine failure and loss of propulsion while driving poses a clear safety risk, especially when merging, crossing intersections, or towing. I maintained the vehicle properly and have all service records. I request NHTSA investigate these widespread lifter failures in GM’s 5.3L V8 engines as a safety defect, since they can and do cause sudden loss of power in motion.
Summary: Sudden loss of engine power while driving due to lifter failure. Details: While driving my 2022 Chevrolet Suburban equipped with the 5.3L V8 (RPO L84), the engine suddenly lost power without warning. The vehicle began misfiring and lost propulsion in traffic, creating a hazardous situation. I was unable to maintain normal speed and had to maneuver to safety while the truck rapidly lost power. The dealer later diagnosed the problem as a collapsed lifter/valvetrain failure — an issue that GM has already documented in service bulletins (PIP5776G, 23-NA-043) and a service update (N212353840). These bulletins show GM has long been aware of defective lifters in 5.3L engines. This is not just a drivability concern. A sudden engine failure and loss of propulsion while driving poses a clear safety risk, especially when merging, crossing intersections, or towing. I maintained the vehicle properly and have all service records. I request NHTSA investigate these widespread lifter failures in GM’s 5.3L V8 engines as a safety defect, since they can and do cause sudden loss of power in motion.
Driving down to Florida, No warning, no lights, never any issues except a belt replacement. I get oil changes, tire rotation every 3500 miles. Almost got killed doing 75 miles per hour, engine sputtered, totally shut down. Coasted onto an exit ramp thank God it was right there or we could of been killed. Tow truck towed to Davis Chevy Gainsville, they called me on Monday said good news I have a warranty bad news Total Engine Failure, will take 3-4 weeks to replace. Now I am trying to find a GM rental large enough to get me and my family back to TN since GM said they will only pay for a GM rental car. Scary, could of gotten killed. NO NOTICE FROM GM ABOUT ANY POSSIBE PROBLEMS....WE ALMOST GOT KILLED AND CRASHED along with the other drivers on the road. Thank God it was a Sunday and 6 am so not much traffic or it would of been worst.
Driving down to Florida, No warning, no lights, never any issues except a belt replacement. I get oil changes, tire rotation every 3500 miles. Almost got killed doing 75 miles per hour, engine sputtered, totally shut down. Coasted onto an exit ramp thank God it was right there or we could of been killed. Tow truck towed to Davis Chevy Gainsville, they called me on Monday said good news I have a warranty bad news Total Engine Failure, will take 3-4 weeks to replace. Now I am trying to find a GM rental large enough to get me and my family back to TN since GM said they will only pay for a GM rental car. Scary, could of gotten killed. NO NOTICE FROM GM ABOUT ANY POSSIBE PROBLEMS....WE ALMOST GOT KILLED AND CRASHED along with the other drivers on the road. Thank God it was a Sunday and 6 am so not much traffic or it would of been worst.
Engine lost power and stalled without warning while driving down the highway. Coasted to side of road and was unable to restart engine. After engine stopped, dash indicated low fuel, although tank was 3/4 full. After coming to a stop, was unable to shift out of Park (which could have been a major issue if I had not been able to clear the highway before coming to a stop). Towed vehicle to closest Chevrolet dealer, who replaced the fuel pump control module. Dealer indicated that this is a common failure item to the point that they stock the part and suspected what the failure was based on my description. When pressed, the dealer representative also noted that GM has not updated or redesigned the factory installed fuel pump control module ("the new module installed is exactly the same as the one that failed"). Fortunately, traffic was light and I was able to pull to the side of road. This would be extremely dangerous if it happened while driving on a multi-lane expressway and we were trapped at a stop in heavy, fast moving traffic.
Engine lost power and stalled without warning while driving down the highway. Coasted to side of road and was unable to restart engine. After engine stopped, dash indicated low fuel, although tank was 3/4 full. After coming to a stop, was unable to shift out of Park (which could have been a major issue if I had not been able to clear the highway before coming to a stop). Towed vehicle to closest Chevrolet dealer, who replaced the fuel pump control module. Dealer indicated that this is a common failure item to the point that they stock the part and suspected what the failure was based on my description. When pressed, the dealer representative also noted that GM has not updated or redesigned the factory installed fuel pump control module ("the new module installed is exactly the same as the one that failed"). Fortunately, traffic was light and I was able to pull to the side of road. This would be extremely dangerous if it happened while driving on a multi-lane expressway and we were trapped at a stop in heavy, fast moving traffic.
I WAS DRIVING HOME AT HIGHWAY, I HEAR NOISE SCRAPPING NOISE FROM UNEVEN PAVEMENT AND ROLL OVER SPEED BUMP AND A PIECE OF METAL LIKE U SHAPE FELT OFF. WHEN I GET HOME, INSPECTED I SAW MY VEHICLE FUEL TANK HAGGING ON ONE SIDE. FOR SAFETY TO PREVENT TANK TO FELT OFF I HAVE TO GET A STRAP TO SECURE IT THE TANK TO THE FRANME .
I WAS DRIVING HOME AT HIGHWAY, I HEAR NOISE SCRAPPING NOISE FROM UNEVEN PAVEMENT AND ROLL OVER SPEED BUMP AND A PIECE OF METAL LIKE U SHAPE FELT OFF. WHEN I GET HOME, INSPECTED I SAW MY VEHICLE FUEL TANK HAGGING ON ONE SIDE. FOR SAFETY TO PREVENT TANK TO FELT OFF I HAVE TO GET A STRAP TO SECURE IT THE TANK TO THE FRANME .
High pressure pump failed at 73000 miles.
High pressure pump failed at 73000 miles.
When I started up the vehicle with the key fab button I noticed the cabin air blower came on as normal however when we went to the cockpit we noticed the engine was not running. When we went to start the vehicle (holding break and pressing start button) the dashboard started the Z71 launch sequence and then went to a dashboard as if I was in the normal drive mode however the dashboard was extremely dimly lit as if the backlight was not on and the engine still was not running. After several attempts to start using the brake+start button method we noticed a clicking sound that seemed to be coming from the engine cabin just in front of the passenger cabin however it would never ignite/start the engine. After several attempts to start the engine through the brake+button, we tried to just press the start button, which would sometimes be prompted on the dashboard, and get some feedback from the dashboard through better backlighting and messages I now cannot recall but never ignited the engine. When we tried again with the key fab x2 button (hoping it would either start or "cancel" the current vehicle state), we received no response from the vehicle. When we attempted to shift, it stated the "conditions were not met", which I perceived as the correct response. The vehicle was stuck in this "mode" with the air blower still running and exterior lights still on and it was only a matter of time until the battery ran out. When it ran out later that day (though not completely ded) in rebooted in the same tweener mode. However, when we came the next day with a tow truck and a fully dead battery in the Suburban, the vehicle booted right up as normal. The tow truck driver indicated several new Tahoe drivers experiencing the same issue. To me, this is a software launch issue. While the vehicle was not perceived to be in danger, it left us stranded in what could be a dangerous location. Several episodes as reported by tow truck. Unsure if inspected. No symptoms before problem.
When I started up the vehicle with the key fab button I noticed the cabin air blower came on as normal however when we went to the cockpit we noticed the engine was not running. When we went to start the vehicle (holding break and pressing start button) the dashboard started the Z71 launch sequence and then went to a dashboard as if I was in the normal drive mode however the dashboard was extremely dimly lit as if the backlight was not on and the engine still was not running. After several attempts to start using the brake+start button method we noticed a clicking sound that seemed to be coming from the engine cabin just in front of the passenger cabin however it would never ignite/start the engine. After several attempts to start the engine through the brake+button, we tried to just press the start button, which would sometimes be prompted on the dashboard, and get some feedback from the dashboard through better backlighting and messages I now cannot recall but never ignited the engine. When we tried again with the key fab x2 button (hoping it would either start or "cancel" the current vehicle state), we received no response from the vehicle. When we attempted to shift, it stated the "conditions were not met", which I perceived as the correct response. The vehicle was stuck in this "mode" with the air blower still running and exterior lights still on and it was only a matter of time until the battery ran out. When it ran out later that day (though not completely ded) in rebooted in the same tweener mode. However, when we came the next day with a tow truck and a fully dead battery in the Suburban, the vehicle booted right up as normal. The tow truck driver indicated several new Tahoe drivers experiencing the same issue. To me, this is a software launch issue. While the vehicle was not perceived to be in danger, it left us stranded in what could be a dangerous location. Several episodes as reported by tow truck. Unsure if inspected. No symptoms before problem.