Sugar Bears 2015 GMC Terrain SLE-2 2.4 AWD

[Coastie05]

Very interesting thread. Definitely didn’t expect to see this kind of mileage out of that engine. 

[Grumpy Bear]

9 hours ago, Coastie05 said:

Very interesting thread. Definitely didn’t expect to see this kind of mileage out of that engine. 

 

I'm suborn like that Ed. There's a plaque in my doctor office that says, "Don't quit, take a break." Works for allot of things. 

 

Reality is, the wife loves her SUV and even given it's issues, she'd buy another if she found one with low enough miles. Then again she has me to maintain it. 

 

Most of what ails this thing is GM shooting themselves in the foot and by extension the buyer. Besides a ridiculous breather system the cat warm up strategy, IMHO, is the dumbest thing I've ever seen an OEM do to a vehicle they warranty. On cold start it r-e-t-a-r-d-s the ignition to like -17* ATDC and dump fuel like kicking over a pail to force combustion in the CAT's for rapid warm up. This literally hoses the oil off cylinder walls and creates enough varnish precursors to stick rings in even well maintained engines. THEN if that wasn't bad enough they recommend using a wanting fluid specification at equally stupid interval. 

 

Common to all GDI motors I'm aware of is this silly practice of driving the HPFP off the cam giving a leaking pump direct and unchecked access to the crankcase. And sir, eventually they ALL leak. Your job is to "catch it if you can". Yes, these are the same people that removed dipsticks from engines and transmissions in belief Joe Average wasn't capable of checking, reading and maintain his own vehicles fluids. Sadly  and in large they were correct. Most people these days can't tell a sparkplug from a fire plug.  Great ideas one and all. 

 

Every move and every error calculated to defend themselves from the law and their own customers. 

 

 

 

Edited July 5 by Grumpy Bear

[Grumpy Bear]

286,740 Mile Services

 

8/6/2026

 

New AC Compressor. Refrigerant oil and dye, evacuate and charge system. 

New exhaust system from cat back. 

New Iridium plugs plus replace #3 coil

Repair/rewire headlamp wiring (passenger side) and replace all forward bulbs. Polish lenses of both assemblies. 

Pull rear rotors, clean and adjust parking assembly. Inspect, clean and grease front calipers. Check pads and shoes. 

4 wheel power bleed of brake system. Dot 4

Reset idle speed 50 rpm higher

New Serpentine belt. 

 

Will need new pads in the rear in about 5K more miles. 

 

Tax Title and License out the door just short of a grand. 

 

AC clutch had bitten the dust. 1 year warranty on the pick and save replacement. Thing will make a Polar Bear cry Uncle. 

He spent quite some time on the wiring. It was in the harness and he does nothing half. I got off cheap. I have considerable more light down the road. Sylvania Silver Star replacements. 

Gas seal between the porcelain and shell of plug #3 was blown, cooked the coil. That was the cold miss. 

Love the new exhaust. I can sneak into the neighborhood again. 

Nice to have a working parking brake again. Belle Tire never got it done. That was disappointing. 

 

This was one of her bigger bills and still way cheaper than a payment even given the oil consumption. This thing cost me under a hundred a month in repairs and normal routine costs. What is my incentive to replace it?  

 

 

 

 

 

Edited Friday at 03:31 AM by Grumpy Bear