2017 Cadillac Escalade engine problems

“My 2017 Cadillac Escalade AFM lifter fail and cause complete engine failure while driving on the highway. It was terrifying to happen on the highway. This could have cause as a major accident.”

“P0306 misfire. Flashing check engine light. Ive replaced all spark plugs. Ive replaced the ignition coil. Still has not fixed problem. While doing research on how to replace fuel injectors came across an article stating special coverage N102291660 for fuel injectors extending the warranty to 10 years, 150,000 miles but this is not showing for my VIN. My vehicle has the 6.2L engine so Im not sure what this is covered for some but not others when this is a known problem. I bought this vehicle a year ago because my wife and I took in custody of our 3 nieces all under age 2 thinking this would be a reliable vehicle. Id like to understand why my vehicle os not covered for this known issue, but others Cadillac ESVs are.”

“Engine misfire, AFM lifter collapse, defective AFM/DOD lifter technology. The three diagnosis I have had done to check for multiple opinions have all come back the same with a collapsed AFM lifter causing camshaft damage, overall failure of an AFM/DOD deactiviating lifter in the 6.2L L86 engine leading to engine damage. It is available for inspection. The problem has been confirmed by multiple independent service providers and confirmed to be an issue in ongoing litigation against GM. It was initially diagnosed by a mobile mechanic and then taken to a independent service mechanic who confirmed the initial diagnosis. It was then confirmed again by a third party independent mechanic. The engine light did not appear until the noise started and what I now know as when the lifters failed, at which after my vehicle alerted me with the engine light. When the problem first occurred, I was driving around 35 MPH down a public road, I had to immediately slow down and pull over. I then limped the vehicle to a safe destination where the mobile mechanic was able to check it out. Luckily, I was not going high speeds and the public road I was driving on was not busy so I was…”

“My 2017 Cadillac Escalade with the 6.2L V8 engine experienced AFM (Active Fuel Management) valve lifter failure. While driving on the freeway the vehicle began stuttering and shaking violently, and it felt as though I had lost control of the vehicle. The check engine light illuminated and diagnostic codes P0300 (random misfire) and P0304 (cylinder 4 misfire) were found. The vehicle was confirmed by a Cadillac dealership to have collapsed AFM lifters on the right side, a faulty valve lifter oil manifold (VLOM), and a broken exhaust bolt requiring extraction. The engine was also showing slightly low compression at times and making noise on cylinder 4. This is a known defect in GM's AFM system across multiple model years. The failure poses a serious safety risk as the stuttering, shaking, and sudden loss of engine power occurred unexpectedly at freeway speeds, significantly reducing my ability to safely control the vehicle. The repair has been confirmed and quoted by an authorized Cadillac dealership. The vehicle is available for inspection upon request.”

“The 6.2 L engine on my 2017 Cadillac Escalade failed at around 97,000 miles. I took it to Heritage Cadillac dealership for a diagnostic check and had it repaired. The engine had a broken engine rod and lifters damage to the engine. I had the engine repaired at the dealership but a few weeks later I heard rattling noise coming from the engine. I took it back and told I would need a another engine due to complete engine failure. Prior to my engine failure around 55,000 miles, I reported to the same dealership service department that I noticed the engine would give me a rough idle occasionally and burn more gas whenever it happened. I was told it was nothing they could do because the check engine light wasn't on.”

“With only 78k miles on my 2017 Escalade the same issue happened with the lifters like in the 2021-2025 models. We had to pay out 14k to replace the motor. GM has known about this problem for almost a decade and it’s not fair that we had to pay out this much money to replace an engine with them knowing the problems. Had they told us years ago to change to a heavier oil or whatever we would have done so and maybe our factory engine would have lasted like so many previous year models up to 250k miles.”