Had a buddy with a 2011 GMC Sierra 2500 Denali. Had some issues though. Transmission was a bit finicky. Gear shifts felt rough, especially at high speeds. Could it be the transmission fluid? Or maybe something else? And the fuel pump gave him trouble once. Made it hard to start the truck. Had to get a new pump eventually. But then again, my bro says the cooling system was hot. Had to replace the radiator. Do y’all think it’s just wear? Another thing, electrical gremlins here and there. Lights flickering and radio cutting out. Kinda annoying but not too bad. Then there’s the MPG. Not great fuel economy. Thought it might be the tires but swapped 'em still not much better. Anyone else had these probs? Got any tips for fixing them
In Texas, the 2011 GMC Sierra 2500 Denali’s transmission’s a nightmare. I’ve had it swap gears at the worst times. Then there’s the cabin air filter; I have replaced it more times than I’d care for, totally kills the AC. Insurance is bonkers high, too!
I’ve had my fair share of issues with my 2011 GMC Sierra 2500 Denali here in Texas, man. The transmission can be a pain—grinds like it’s having a tantrum! I have got recalls popping up for the fuel tank. And let’s not forget the check engine light—like it has a mind of its own! The truck’s great otherwise, but yo, the gripes are legit. Anybody else felt the same or got tips?
I’ve had a 2011 GMC Sierra 2500 Denali in Texas, and it wasn’t all smooth sailing. Issues popped up often – especially with the transmission sticking and the console dying out randomly. Some folks reckon the exhaust was loud as heck too. But hey, the power’s insane when it fires up right! Anyone else had similar headaches with theirs, or am I just unlucky?
I’ve got a 2011 GMC Sierra 2500 Denali in Calgary, Canada, and man, the turbocharger issues drive me nuts. Clanking noises like it’s got a squirrel running around in there. Also, transmission quirks. Thought it was smooth, but nah, smooth as sandpaper! Heard you gotta baby the tranny - anyone else deal with this? It’s frustrating!
Lately, heard folks around Detroit moaning about the 2011 GMC Sierra 2500 Denali. I’ve run into radiator issues, others say creaky exhaust. Seems like tranny problems are a biggie too around here. Can’t win 'em all with these trucks, huh?
I’ve got the 2011 GMC Sierra 2500 Denali here in Texas and yea it’s solid but the transmission can be real finicky, especially with cold temps. Heats up the coolant system too! We’re keeping an eye on it though. Tons of torque, if you know what I mean!
I had a 2011 GMC Sierra 2500 Denali up in Colorado and let me tell ya, it wasn’t all smooth sailing. The transmission was finicky, shifting like molasses on a cold day. Had to replace the water pump twice in just two years; overheating was a constant hassle. Also, the electrical system, pfft, gave me more headaches than I care to count. Despite these issues, the power was killer when it worked!
I’ve had a few runs with a ‘11 GMC Sierra 2500 Denali in good ol’ Ontario. Noticed the transmission can be funky, sometimes hesitates like crazy, and kick in the gas pedal feels off. Also, those tires don’t last long as they wear down quick. Overall a beast but requires regular TLC.
I’ve got this '11 GMC Sierra 2500 Denali in Canada, and boy, oil leaks near the fan belt area were a hassle. Noticed my AC also acts funky, especially on hot days. Forums say the electrical system glitches too. Had a fella hint at transmission issues around 80k miles. Anything else sucky from your rides?
I’ve had my fair share of issues with my 2011 GMC Sierra 2500 Denali out here in Alberta. Had trouble with the transmission more than I’d like. A buddy mentioned shuddering when shifting gears. Suspension feels funky too, maybe needs new shocks? Ugh, and don’t get me started on the infotainment system. It’s super outdated, man. Just don’t let it sneak up on ya when you thought you had everything under control with this beast.
I’ve owned my 2011 GMC Sierra 2500 Denali in Toronto, and man, it’s had its quirks! Suspension feels like a trampoline after driving on rough roads—anyone else have this bounce? And the transmission issues, oh boy, it’s like switching gears with laggy internet! But it’s a beast for towing when it behaves, you know what I mean? Been fixing a few myself, super handy with some tools!
I once owned a 2011 GMC Sierra 2500 in Denver. It had some transmission issues—something about the shifter actuator. Also, had a leaky head gasket. Rode smooth otherwise, but check for rattles every few months. Total classic muscle in need of TLC! Caught my wife in traffic more than once.
I’ve parked this 2011 GMC Sierra 2500 Denali here in Texas and trust me, the transmission stuttering is a pain. Tuned it up but that mpg is still a joke. Besides, the infotainment system keeps freezing—I swear it’s got a mind of its own. Anyone else swapping parts? My buddy swapped the AC compressor 'cause it went kaput real fast. So much drama, but still a beast in its prime.
I’ve had my fair share with a 2011 GMC Sierra 2500 Denali out in Michigan. Gear shift problems were pretty common, especially with the steering column. One time, my buddy’s truck just completely refused to change gears, and man, that scared me while hauling a loaded trailer. He had to pop open the dashboard to fix it, though it was a hassle. And that transmission—let’s not even start—I’ve heard stories and complaints like crazy. A solid truck, but these issues can be real pain in the rear!
I’ve had issues with my 2011 GMC Sierra 2500 Denali in Vancouver; it’s got a finicky transmission. Others have mentioned electrical problems too. Seems like a robust beast but fussy AF at times! Stay cautious if considering a buy.
I’ve owned a 2011 GMC Sierra 2500 Denali out here in Texas, and the transmission’s been acting up big time. The HVAC system’s another pain, not holding temp right. Friends in Canada mention similar probs, except theirs struggled with engine performance more. Overall, a real head-scratcher sometimes!
Living in Texas, I’ve owned a few trucks, so I speak from experience here. The 2011 GMC Sierra 2500 Denali can be a solid beast, but man, isn’t that V8 a thirst monster? I’ve had torque converter issues more than once. The fuel gauge is pretty much a guess-timate too. And if you can fix it yourself, steer clear of the electrical gremlins. On the flip side, it’s got that Denali luxury punch. Overall, a mix of leather seats and a wrench in hand. Just something to keep in mind.