2009 Cadillac Escalade Engine Problems

Lifter failure resulting in a bent pushrod, camshaft, and piston damage. The engine was very dirty like the oil changes were neglected. I always changed the oil in 5,000 mile increments or less depending on driving conditions. The owners manual and oil filler specifies Mobil 1 5W30 oil. When I was working I always had the shop next door change the oil with Mobil 1. After I retired in 2019, I had the nearby GM dealer change the oil. I was unaware that they were substituting DEXOS oil which is not what the owners manual or fill cap specifies for this vehicle. This resulted in premature engine failure. With DEXOS you could be getting oil that is inferior to Mobil 1 full synthetic. See [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact owns a 2009 Cadillac Escalade. The contact stated while driving 35 MPH, the vehicle was shuddering with an abnormal sound coming from the engine. The check engine warning light was illuminated. The contact pulled over and turned off and restarted the vehicle. The vehicle was then taken to an independent mechanic to be diagnosed. The contact was notified of an engine misfire due to a faulty camshaft sensor. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 117,000.

TL* THE CONTACT OWNS A 2009 CADILLAC ESCALADE. WHILE AT A STOP LIGHT, THE VEHICLE SEIZED. IN ADDITION, THE VEHICLE FAILED TO START ON OCCASION AND THE CHECK ENGINE INDICATOR HAD BEEN ILLUMINATED FOR AN EXTENDED PERIOD OF TIME. THE VEHICLE WAS TAKEN TO EARNHARDT BUICK GMC (6501 CENTENNIAL CENTER BLVD, LAS VEGAS, NV 89149, 702-951-8200), BUT WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS 209,000.