vehicle has 19,000 miles and the breaks give out periodically.....gmc does nothing to resolve...been fighting for over a year and a half with this issue....there best advice is keep driving till one of there mechanics can feel the breaks give out...will NEVER BUY ANOTHER GMC customer service and parts are terrable
I have the 2nd generation LLY Duramax engine in mine and i love it. I had to replace the injectors when i bought it at 130,000 but other than that i have just been upgrading. The ride is great, the seats are comfortable, the fuel economy is good, 20-24 highway, 15-18 city, if i keep my foot out of it(hard to do with 400 HP and 600LbFt of torque on tap). I have not had any major breakdowns since owning it. The transmission did blow up at 143,000, but it was a freak electrical short that caused it to engage 2 gears at once(lots of chunks in the pan). It actually got me all the way back to the shop in limp mode which was about 25 miles, 10 of which on a logging road.
The Duramax engine, the cab room(front and rear), easy to work on, good mileage,the lighting(upgrade to a Bright Box)it is good stock though, handles great in all weather, the ride is great and the in cab storage is very well thought out.
upgrades the tires to 33"(no lift required), upgrade the headlights with a Bright Box, aluminium skid plate are far better than the plastics(get some) and some step bars so you dont destroy the edges of the seats
Truck has been overall a good unit. Windsheild leak when new at passenger floorboard and behind dash. Took 1 year for local dealer to finally fix. Climate Control slow to activate fan, really noticable on hot days, seems I have to press brake pedal to start blower (wierd). Trans will sometimes start in 2nd gear, then shift to 1st. Usual problems with intermiediate steering shaft (now on 2nd fix), driver's seat belt and armrest broke, pass side also (wrty fixes). Also having wierd problem during cold months with intermittent dash light and guages recycling, no fix yet. Orig brakes are still strong at 90k miles, tire wear good, body still tight and quiet, engine strong with no oil usage
Comfort, power, ride ok, luxury options, looks, towing power, ease of driving. GM trucks for me have proven to be good for long term purchases.
GM should tighten up the quality control some more. Already the best, would only make them better.
2004 GMC Sierra 2500HD 2dr Regular Cab Work Truck 4WD LB (6.0L 8cyl 5M)
Truck rides very rough. Truck's brakes are sluggish. Truck is 6 litre not great gas. Truck has had all kind of problems! If you have to stop fast you are in trouble. That's why this truck has been in 3 fender benders. Had to replace complete rear brakes and rear seals .
Truck has good power and 4wheel drive.
Truck needs better brakes, steering column, speedo, rear end needs to be beefed up. Suspension is sloppy. Tail gate needs to work
This truck has been used mostly on the highway, carries dirt/mulch and recreational toys. And has done so for 62,000 miles without a single mechanical problem! It was originally purchased for towing a camper. Within 6 months of purchase, rising gas prices made driving this thirsty vehicle downright painful! With the cruise control set at 65 station to station on an interstate,13.7mpg. Disappointments? The ventialtion system. The AC is not cold nor dry enough to defog windows. And the radio is horrible! Did I mention fuel efficiency?
Reliability. Cruise control. Headlights. Sounds odd, but they're really bright!
Improve the AC. Make power locks standard on base model. Improve the stereo. Oh yeah, best case13.7 mpg?