2015 Cadillac Escalade: misfire or rough idle

Filed Sep 17, 2026 · Electrical, Engine · RI

My 2015 Cadillac Escalade 6.2L V8 with Active Fuel Management has had repeated lifter/valvetrain failures. On 10/2/2025 at approximately 109,536 miles, an independent repair shop confirmed a failed lifter on cylinder 3. The driver-side cylinder head was removed and all eight lifters on that bank were replaced along with a pushrod. On 9/9/2026 at approximately 116,689 miles, only about 7,153 miles later, the vehicle again developed severe shaking while driving. A different independent repair shop documented diagnostic code P0300, cylinder 1 low compression and misfiring, and noted that the lifters on that side had recently been replaced. Additional lifter-related parts, including lifters, a pushrod, guide and VLOM plate, were replaced. The shaking and misfire occurred while the vehicle was being driven, which concerned me because a sudden engine misfire or loss of normal engine performance could reduce power and affect safe control of the vehicle in traffic. Both failures were confirmed and repaired by independent automotive repair facilities. After the most recent repair, I returned the vehicle to the mechanic because it still felt different and had some vibration. The mechanic stated that the engine currently checks out, but I can still feel vibration that was not present before these problems. I do not know whether the removed failed lifter components are still available for inspection, but I have repair invoices documenting both failures and repairs. To my knowledge, the lifter failures themselves have not been inspected by General Motors, police, or an insurance representative. The second failure was documented with code P0300, low compression and a cylinder 1 misfire. I do not know whether the check-engine warning lamp was illuminated at the exact time the symptoms first began.

Filed Jul 25, 2025 · Engine · CA

My 2015 Cadillac Escalade suffered complete engine failure caused by a known design defect involving the Active Fuel Management (AFM) lifters and camshaft. This issue is documented in GM Technical Service Bulletins (TSB #15-06-01-002E and PIP5606C), which acknowledge lifter collapse, misfires, and internal engine damage in 2014–2020 Escalade and similar models. GM-certified dealerships repeatedly misdiagnosed the issue as minor (e.g. spark plugs, oil), allowing the underlying defect to worsen. I am uploading invoices from Cadillac of Cerritos (who misdiagnosed the problem), my trusted local repair shop, and Cadillac of Torrance, who ultimately diagnosed the failed lifters and camshaft, but had originally referred us to Cerritos because they could not take us at the time. The misdiagnoses delayed necessary repair, resulting in catastrophic engine failure and a repair quote exceeding $10,000. GM only offered $2000 towards a new car despite clear evidence of a widespread design defect. I believe this is not an isolated case. Many owners have filed similar complaints with the federal safety agency, and class action lawsuits (e.g. Mason v. GM) are pending for this exact issue. Despite this, GM has not issued a recall. This defect creates serious safety risks, including stalling, loss of power, and engine failure while driving. My family was placed in danger by a vehicle GM and its certified dealers knew was vulnerable. I urge the federal safety agency to investigate this engine defect further and require GM to take full accountability.

Filed Apr 17, 2023 · Engine · FL

First incident Feb 2022– 2015 Cadillac Escalade had approximately 89K miles on it. Was driving home from work in I-75 when the engine started knocking and vehicle began shaking & losing power. I was able to make it off an exit before it totally shutdown and would not crank again. The vehicle was towed to a local mechanic where a Misfire code was reported; Repairs shop was compensated for repairs via extended warranty. Second incident March 2023– Approximately 1 year later, the same thing happened. I Was on my way to work, once again, on the interstate in morning rush traffic when the engine started rattling and shaking. When I looked down at the dashboard the check engine light was flashing and the traction system light was illuminated. Thankfully I was able to make it off an exit to a gas station. The vehicle was towed to a local repair shop. Misfire code P0300 was read and cylinders #7 and #8 were diagnosed with misfires with no vacuum leaks. This time the warrant company is not willing to pay and now I’ve become aware of Chevrolet TSB 15-06-01-002F. I’m not sure why this has not been classified as a recall safety issue, but there is sure & present danger when your vehicle suddenly loses power while traveling on the interstate. This engine is faulty and needs to be recalled. How many people have to die & families ruined for it to be deemed a “safety issue”?

Filed Aug 12, 2022 · Engine · 113,000 miles · TX

The contact owns a 2015 Cadillac Escalade. The contact stated while driving at 65 MPH, the vehicle started shuddering and decelerating independently. The contact exited the highway and was able to drive to an independent mechanic. The independent mechanic diagnosed that there had been a misfire on cylinder number three (3). The vehicle was not repaired. The vehicle was towed to another independent mechanic that was closer to her residence. The independent mechanic diagnosed that cylinders one (1) and number three (3) were misfiring, had lost compression and needed to be replaced. The vehicle had not been repaired. Upon investigating the failure online, the contact became aware of Chevrolet Technical Service Bulletin Number: 15-06-01-002F (Engine Misfire/Tick Noise), which she associated with the failure. The manufacturer had not been informed of the failure. The failure mileage was approximately 113,000.

Filed Oct 4, 2021 · Engine · TN

2015 Cadillac Escalade had 65,186 miles on it. Was driving home with family and the engine started knocking. The code that was reported was P0300. Constant engine misfire. The replaced it under factory warranty. 1 year later, the same thing happen. Was driving with the family and engine started misfiring. Had it in the shop a couple of weeks before for preventive maintenance. Nothing was called out with the vehicle. Now GM is trying to charge me $9700 to replace the engine that was suppose to be new. Very disappointing that I am a long time consumer with 2 Cadillac's and treated like I did something wrong be Service Manager. This engine is faulty and needs to be recalled!