Five problems related to timing tensioner have been reported for the 2011 Chevrolet Equinox. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2011 Chevrolet Equinox based on all problems reported for the 2011 Equinox.
My vehicle has been diagnosed and the timing chain and belt tensioners have gone bad and need replaced but my VIN is not listed under the recall. It's a 2011 chevy Equinox under the 120,000 mile specification. Knowing my vehicle's history before I came into ownership this was already replaced in 2015 but needs it again already so there's clearly a manufacturer's issue going on.
Failure timing chain tensioner and chain guides at 60k miles, replaced timing chain, balance chain, guides and tensioner and excessive oil consumption.
My 2011 Equinox suddenly lost power while driving and could not control the vehicle in traffic. The vehicle would not start, but would turn over. Fortunately I was able to push it off the highway and tow it home. I then had it towed to dealership in brockport NY (spurr gm dealership). It took 3 weeks to diagnose and repair. The root cause according to the mechanic was that the original factory tensioner to the timing chain failed and the engine went immediately out of time - causing immediate failure of the vehicle and hence control on the road. The engine needed costly repairs of $2600 which is fine (my families life is worth way more) the factory original tensioners evidently fail regularly because they are hydraulic and the intake holes to the tensioner plug easily - chevy evidently repairs with an improved part that has a wider intake port to prevent clogging. This is a safety issue as control of the car can be lost immediately, without warning and it is difficult to control a car with such a failure causing injury or death of the driver occupants or anyone in other nearby locations to such an event. Chevy does not consider the common failure a "safety" problem rather a "mere" mechanical problem. It is worthy to note the vehicle was otherwise in good shape, well maintained and used synthetic mobil-1 oil - changed 2 weeks prior to such event. The dealer repairs noted no other mechanical issues to the vehicle related to poor or unperformed maintenance.
While driving on the highway the check engine light came on. Immediately in the message area two message were displayed - "reduce engine power" and service stabitrack soon". Immediately the vehicle would not go over 3000 rpm and 50 mph. Within a mile the engine lost all power (luckily this was as I was hitting the exit ramp off the highway). After waiting for a few minutes I was able to fire it up but the errors returned. I limped the vehicle home and had it towed to my local garage. My mechanic indicated there were 9 error codes when he looked with his scanner related to fuel pressure, cam sensors, and motor timing. Furthermore, since I was due for an oil change, he drained the oil pan and saw I was nearly 3 quarts low on oil. This is puzzling as (1) I just checked the oil two weeks ago and, while a bit low, was in operating range and (2) the low oil pressure light never came on. After reading other complaints on this and other sites this seems to be a common occurrence. So now I have a vehicle with 63,000 miles that my mechanic says has significant engine damage (timing chain tensioners, cam sensors, fuel pump). This is very difficult for me to believe since there was no warning lights that came on for low oil and at this relatively low mileage. My only alternatives are to pony up for the parts (and hope the pistons/seals are undamaged) or replace the motor. I also think its quite dangerous for the motor to just cut out like this without more advance warning (I was lucky I was already getting off the highway). Needless to say my confidence with gm is pretty much gone.
Was driving the car at approximately 40mph when the engine shook and slowed down to about 30mph and the rpms shot up to 5,000. I just got the vehicle back from the dealership and they had just replaced the balance shaft chain and tensioner & high pressure fuel pump to hopefully remedy the same problem. The vehicle was purchased certified pre-owned with apprx 52k miles. 11/27/15. I first brought the vehicle in on 12/11/15 and it was retured after 4 days and not being able to "recreate" the problem. I returned the car to the dealership on 1/4/2016 for the same problem which occured on new years day. I just got the car back after repairs on 1/7/16 and now two days later the problem has again occured. The last time in the shop they also could not "duplicate" the issue after driving apprx 50 miles, but I pointed out that the oil was very dirty and smelled like gasoline which they checked and confirmed and did the repairs of the fuel pump and balance chain. The engine issue is still not resolved and I will be returning the car to the dealership again on Monday. I just got plates today because my 30 day tag just expired.