Crankcase (pcv) problems of the 2016 GMC Terrain

I am reporting excessive oil consumption in my 2016 GMC Terrain with the 2. 4l ecotec engine. The vehicle burns through an abnormal amount of oil between routine oil changes, often requiring additional oil changes without any visible leaks or dashboard warnings until the oil level is dangerously low. This issue has been diagnosed by a certified GMC dealership, but the repair was not covered under warranty. I’ve learned this is a known and widespread defect related to faulty piston rings and pcv system issues in this engine model, which has led to engine damage or failure in many cases. GMC has not issued a recall for my VIN, and my request for goodwill assistance was denied despite the safety risk of low oil pressure and potential engine failure while driving. I believe this issue poses a safety concern and warrants formal investigation and potential recall expansion.

I was driving my vehicle to the gym when I noticed it was driving weird, it would not accelerate like normal, was having a hard time getting going and was making a weird noise. I had just put some oil in the car because we had known for a little while that it had a problem with burning oil because of the make and model (as told by other mechanics previously), when I got to the gym I heard a pop noise and the car stalled on me, I eventually got it started up again after 2 hours of being stranded at the gym. The next day I had to drive 40 minutes away for nursing school clincial where on the way home it was back to driving weird and making a loud horrible noise from the engine. I was only 5 minutes from home when it was really bad and once there I noticed the burning smell from the engine. When I checked the oil level after an hour and half of cooling down I could not get any oil reading on the dipstick, after adding almost 4 quarts there was still no reading on the dipstick. We finally drove the car to my mechanic (8 minutes away) and it was already back to making the loud noise, having trouble accelerating, and producing the foul odor. I was told the pcv was restricted and caused the engine to over pressurize and that lead to the main rear bursting and all the oil in my car being thrown over the entire underside and probably the roads. They also checked the oil filter in the car to see if the engine itself was salvageable, where they found metal flakes in the oil filter and deemed the engine failed and are saying the engine needs replaced in order to fix the car I’ve had for 15 months… I’m still paying this car off and I have only driven it for less than 17,000 miles. It is a 2016 GMC Terrain that only has 91k miles, I truly hope gm makes this right seeing as so many have come with the same exact problem due to poor design and vehicle quality. My car has had regular oil changes and I check the oil every week because of the prior burning problem.

The contact owns a 2016 GMC Terrain. The contact stated that while driving 40 mph, there was and abnormal clicking sound coming from the engine. The vehicle was later towed from his residence to an independent mechanic, where the vehicle was diagnosed with a blocked pcv valve which caused the rear main seal failure. The mechanic informed the contact that the clicking sound was from the oil draining at a rapid speed and that the engine needed to be replaced. The contact then called mauer Chevrolet (1055 50th st e, inver grove heights, mn 55077) and was informed of an upcharge for the engine replacement. The contact also called the manufacturer, and was informed that the vehicle needed to be diagnosed by an authorized GMC dealer. The vehicle was not repaired. The approximate failure mileage was 70,000.

I was on my way home from work driving on the expressway, then all of a sudden every light on my dashboard came on. . . Then my vehicle said reducing speed. I was able to get on the shoulder before it turned off completely. I had to wait for a tow truck for 2 hours. It was cold. I had to tow it to my house because the place that I previously went to was closed and I couldn't leave the vehicle there. So, it was towed to the shop the next day and I was told that I needed a new engine. Engine failure due to lack of oil from blown rear main seal. Seal blown out due to pcv.