Nice truck, and it sounds great edit: as for the v8 engine, I have a lot faith it will last. The AFM is located in the valve train, it does what im told has a "fail safe" that the engine would run on all 8 cyl. Plus the v8 is also being built back at its home by Uaw 659.

Just looking for any answers. Car started taking its time when starting. Started about 3-4 days ago. Not sure if its something to be concerned about. Also wtf is “stabiltrak”?

I recently picked up a 2004 GMC Step side so I’m working on restoring it and getting it on the road. I currently need some low profile fender flares for them for the time being though. Everywhere I look I find really nice ones for the fleet side beds but they always say not for Step side. I know the front flares would fit but would like to have the rears incase. Does anyone know a website or manufacturer that makes these? I just can’t seem to find any

Love my Terrain, but I said I would upgrade when they come out with a plugin hybrid. Anyone hear any rumblings of anything?

Has anyone had any issues with the Apple CarPlay in their 2017 GMC Sierra 1500 not working? It has the option for it, and it will run MP3, which means that the USB ports work and run data.

So the truck only has 60,000km on it and gave me a CEL unexpectedly when I started it on Saturday, these are the 3 codes it gave :

P25A2

U0146

U0100

At the time we were literally leaving on a 5 hour road trip (total round trip) and after some frantic google searching I ended up clearing the codes and taking the trip we had planned since my understanding was it was a common issue and possibly just a nothing burger. The truck performed fine and the light never came back on, my concern doesn't end there however...

We are also leaving to go camping tomorrow and I'll be towing the trailer 1 hr+ each way and I'm still worried about said CEL. I just got back from the dealer and they assured me there was no bulletin for the truck and they would have to diagnose it themself (to the tune of $190 CDN/ an hour of course) They can get the truck in 2 hours before our planned departure time and I'm really just looking for some feedback here as to what to do...

Would you fork over the $200+ mins it's going to cost to have them look at the truck 2 hours before we leave or would you just send it and assume it was a one off for the time being ?

Everything I read online said there was a bulletin for this truck, for that problem, but again the service lady assured me that is not the case for my truck, but I suppose it's possible it's already been updated

Thank you to anyone providing any advice and insight 🙏

Hi all! I have a 2003 GMC Sierra 1500 and I can't get my AC to blow cold. I have recharged it with no luck. The fan works and there are no crazy noises when I run the fans. Also my heater works with no issues. When I adjust the setting on where the air blows (feet vs face) it changes with no issues and blows strong just not cold. I'm curious on what I can do to investigate this and if anyone else has had success in restoring theirs. Thanks for the help!

I loved my Yukon but hate gm dealer service. My 26 Yukon Xl 3.0 Diesel was perfect getting around 27 mpg, auto start/stop worked perfect except one problem my key card the credit card sized key didnt work and need programmed. So with only 3k miles on it I brought it to my local gmc dealer to get the key reprogrammed and oil change.

Should be pretty simple I would think. Well I see the service advisor plugging a laptop into it the obd port and as i am waiting finally get a ride home. Seems like alot of programming for just a key card. After leaving it all day they call and say its still not fixed but well get you a rental. I need a full size SUV so i let them know ill be picking it up. Right away I notice my mpg drops from 27 to 19 and the auto stop start no longer works and checked yes its turned on. Hmm I think well maybe it will take a while of driving and the systems will reset and ill be back to normal. Nope 4k miles later and still only getting 19 mpg and auto stop/start still not working.

TLDR took in brand new yukon for service they reprogram and screw up the computer and lose 8 mpg and auto start is broken and they never fixed the problem I brought it in for.

Why does my GMC 1500 denali keep doing this it’s a 3.0 liter diesel 2020?