Five problems related to engine rattling and whining sounds have been reported for the 2011 GMC Terrain. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2011 GMC Terrain based on all problems reported for the 2011 Terrain.
Takata recall : sucking up oil, rattling sound, car jerking forward- diagnosis from GMC dealership- replace pistons, timing rings, and actuators, vehicle had 1 quart of oil and vehicle had regular oil checks and was in shop less than a year prior. This was a known recall by the dealership. 59k mileage on vehicle . We have letter and all documents.
After a 2 hour highway drive I noticed the vehicle began running loud, a rattling noise coming from the engine as I was getting off the highway. After parking and shutting the vehicle down and letting it rest, I went to restart it. Again it was still loud but quickly shut itself off and would not start back up. Upon inspection, the timing chain went out causing, to quote the service manager, "catastrophic engine damage" that was well beyond able to be repaired.
Vehicle consumes 2 quarts of all every 1500 miles only had the truck fora year and a half. Also it has this terrible rattling noise.
I have taken my Terrain to the dealership a countless number of times for various repairs. The latest issue is the "engine power is reduced!" notification. While I was at a complete stop, I heard an extremely loud rattling noise come from under the hood of my car. I turned the ignition off to see if the noise would stop. To my surprise the car did not immediately restart. After turning the key several times the car started but with an even louder rattling noise. I tried to later take the car to the mechanic only to find that the car would not crank again. After repeatedly trying to crank the car, it finally started. I was not able to drive faster than 15 miles per hour. I later found out that I needed much more than a catalyic converter (GMC dealership advised that this may be the issue), instead I needed a new engine that may not be covered although I was still within my factory warranty. This car is horrible stay far, far away. . .
The issue is only happening on 2011 I-4 2. 4l engines. Many people with this engine (terrain and equinoxs for a couple) have the same issue. The vehicle makes a rattling noise when starting up. . Its intermittant. Also I have had (as others have) had the car stall and give an check engine light with code p0011. The car makes the rattling when car is cold or hot. . I have it happen at least once a day. Gm had a tech. Bulletin out on it in Feb. 2011. The fix did not take care of it. In June 2011 gm put out another tb saying 'they are aware of the issue, have no fix yet'. . Again this is happening on alot of these vehicles. . As of right now, gm is not helping me with this. . Just that they are aware and will let me know. . In the meantime, im driving a new car that makes a horrible noise, I dont know what internal damage its causing, and im afraid its going to stall again, in traffic and I will have an accident. . .