2021 Cadillac Escalade: sudden loss of power

Filed Oct 9, 2026 · Engine, Fuel system · UT

Started car and all of sudden shaking, loss of power, flashing engine light and punch of flashing warnings. The car is being towed to cadillac dealer!

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

Driving my 2021 Escalade on interstate and engine began emitting sudden, loud metallic tapping. Oil pressure dropped off and a reduced power warning came on HUD. Acceleration dropped off, forcing him to coast dangerously across three lanes of traffic to the shoulder. Coasted to dealership—-somehow the VIN didn’t fall within the 2021-2024 recall despite exhibiting the exact same failure. Catastrophic engine failure needing full engine replacement.

Filed Jul 13, 2026 · Engine · SC

Accelerated onto a 4-lane major highway and lost most engine power and many warning lights came on. I lost most vehicle power merging onto a 4 lane highway around other vehicles. I was able to get the car stopped car safely on side of the road and cut off for one minute. There was a noticeable rattlling noise in the engine compartment and severly reduced power. No lights regarding engine were previously available. Got the vehicle to dealer service center. Below is their report. "engine misfire detected. checked misfire data, all cylinder has recorded misfires with cylinder #4 being the most at 23,316. will have to remove bank 2 valve cover for inspection of rocker arms along with push rods. after removing valve cover no visible issues. started vehicle and the scraping/ticking noise is very audible. all rocker arms are moving. when touching cylinder #4 exhaust valve rocker arm can feel the roughness of the noise. which is indication of failed valve lifter or camshaft lobe. estimate provided. labor op 4067490 engine replacement 18.4 add 1.2 evacuate and recharge r1234yf a/c system. old engine #N1203011CU8X0269. new engine #19420611 007507775 1110000000000X. service completed."

Filed May 1, 2025 · Engine · SC

This vehicle experienced a sudden engine failure while traveling on the highway which caused an immediate loss of power. The safety of myself and my family was at risk as we exited the roadway to the shoulder without power and the vehicle shaking violently. Vehicle was towed to a dealership where upon inspection they found the rocker arm for the intake valve on cylinder 6 not moving, a bent pushrod, and a lifter that had come apart. It is unknown if an inspection was performed by the dealer beyond the initial diagnostic. The check engine light had come on within the last 12 hours. We called onstar and they said the code indicated we should bring the car to the dealer within the next 24 hours. There was no indication that it was unsafe to drive with the light on.

Filed Apr 30, 2025 · Engine, Fuel system · IN

1st incident - Car stalled at a red light and had to be towed for repair. It was determined to be the fuel injector pump. No lights came on and there was no indication of an issue prior to it stalling. 2nd incident - On the intestate it started making a rattling noise and felt like it was losing power. No lights came on to indicate any issue. Luckily we were able to exit the interstate but it stalled on the middle of the exit ramp. We were 5 hours away from home and it was towed to the nearest Cadillac dealership. They had the car for approximately 2 months and replaced the engine. 3rd incident - the car was back 2 weeks from the engine replacement. For 1 of these weeks it sat in the airport garage. When it was turned back on after sitting for a week the check engine light came on. I was able to make it home from the airport but it stalled out in our driveway and had to be towed again. It was determined it was the fuel injector pump and it was replaced again. The pump was only about a year old.

Filed Feb 23, 2025 · Engine, Lights · TX

Driving home going 60-70 miles an hour I lost power in the middle of the highway and cruised off to the emergency lane. Engine completely shut off out of nowhere. Spedeometer went down even though i was pressing the accelerator . Starter burned out as well. Dealership says there was metal in the engine. Ordered a new engine and that engine was also defected. Now going into my third engine. In less than 2 months. If traffic would have been worse the possibility of safely maneuvering to a emergency lane could be fatal. Also one of the day running lights on multiple 2021 escalades go off.