OP, do not buy a 2.4L/4cylinder of any year. I have a 14, which is supposed to be "Updated" and it is just plagued with poor quality. DO not buy one, it will be a dumb decision. The only smart choice you have made at this point is signing into the forums to ask us if you should buy a terrain/equinox, and the short answer, which is what your mechanic has told you, is NO!. Put the brakes on your son, who is trying to make a choice, thing is he doesnt know **** about cars or life, and this is where you step in. have him sit down and put your foot down, no gm's.
Your own mechanic is telling you to stay away and you are not listening. Are the 6's better than the 4's? probably. Does it mean you should buy one? No. Truth is gm has horrible engineers and has taken short cuts on quality to save money/ increase profits. Listen to your mechanic, do not buy one. People on here have bought 6's and will come in here to defend them, and i am sorry to offend them, but you should not buy a 6 either. You will regret it. I encourage you to look into toyota rav4s and 4runners if you value reliability and low maintance cost. IF money is nothing to you, and you want a car because of the way "it looks", sure go buy a GM.
/end rant, listen to your mechanic, heed my warning, stay away, from the 4cyl of any year, and even the 6's. Yes the 6's are better than the 4's to some extent, they are still DI and will suffer from carbon build up which will lead to oil burn. They still have gm quality transmission which isnt a good thing, numerous people have complained about shifting issues on the 6cyl on this forum, with most recent complaints being shift flares. If you are going for a 6cyl vehicle, just look at a comparable price 6 cylinder 4 runner. the 4runner will out last the 6cyl equnix/terrain any day of the week.
2014 GMC Terrain 2.4 SLE-1
Last edited by adidas6804444; 11-13-2019 at 06:34 AM.