Used 2004 GMC Sierra 1500 Extended Cab Consumer Reviews

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$3,185 - $6,075

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Rust bucket

John, 11/09/2015
4dr Extended Cab SLE 4WD LB (5.3L 8cyl 4A)
12 of 12 people found this review helpful

bought brand new in 2004. at 45,000 miles the gauge cluster went, @ 88,000 miles the catalytic converter went, @ 7 years old the cab corners and rocker panels started to bubble despite always washing and hand waxing, along with car washes. At 110k I was using coolant and heard my lifters ticking. With no warranty I pulled the valve covers only to find anti-freeze and my cylinder heads covered in muck!!! The warped cylinder heads that caused the disaster were on millions of gm vehicles between 2002 and 2006. Cadillac's, yukons, sierras, etc, A local mechanic with gm explained that they knew about the problem but continued to use the heads because they had purchased millions of dollars worth of them and knew the buyers would get 100k miles out of them. He explained a recall would have cost millions of dollars so they decided it was pretty much just cheaper to screw the buyer. 3k in parts and labor and the car was down for a week. Needed all new lifters and heads planed. @ 120k rust is through the cab corners and rocker panels. Won't pass inspection in NH, Large holes. Now at 146k It's using coolant again. I tasted the water dripping from the exhaust pipe. Sure enough, anti-freeze. Time to go. Bad luck with 3rd gmc in a row. I'm a bow tie guy with chevelles and other muscle but a ford 250 super duty is looking pretty good. Gas of course where as nothing beats a Dmax.

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GMC Denali Quadrasteer

Spurz, 10/09/2006
23 of 27 people found this review helpful

The GMC Denali provides a level of comfort and sophistication never available in a pick up truck. It offers the upscale appointments with comfortable, adjustable leather seats,the most advance drive train of any truck on the road, the convenience and security of OnStar, and the performance of GM's 6 litre engine. The manuverability is fantastic and a must if you are towing a boat or toy hauler or trying to fit in a tight parking spot. Excellent performance, refinement, and capability with the loan drawback being the poor gas mileage, which is to be expected.

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great trucks

tyloterbauer, 06/03/2015
4dr Extended Cab SLT Rwd SB (5.3L 8cyl 4A)
6 of 6 people found this review helpful

Bought this truck used at 126k miles drove for a month started loosing coolant took it into my dealership they found out it was the water pump not the heads replaced for free I've had to do shocks ball joints tire rod ends maf sensor left bank exhaust manifold gasket evap control module u joint and axle shaft seals because I'm super picky but understand that I did not buy a brand new truck I bought used this truck pulls like a dream rides great just wish it didn't govern at 98 and had better stopping power I drove an 08 and decided I still liked the 04 better plenty of power and mpg isn't bad 04 sierra sle 5.3 extended cab 4x4 z71 is a keeper for sure out Mudd's my buddies fords and dodges

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OK so Far

mgandrew, 08/07/2009
3 of 3 people found this review helpful

Bought used 117,000. Used a little oil and coolant would need irregular replenishing, odd. Every now and then a sticky lifter, then when I added Lucas to the oil all H--l broke loose, literally. Next oil change there was so much sludge in the sump the oil would not drained. Long story short, the sludge clogged the oil pump suction and w/o oil pressure things were not going to get any better. Found a used motor (100,000) miles, swapped out. Better engine, more power, no oil consumption, coolant OK. I'll probably drive this truck for another couple of years. I like it. I think the sludge was related to the coolant loss. As it was infiltrating the crank case and slowly evaporating out?

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Cracked Cylinder Heads

formergmcguy, 02/02/2013
3 of 3 people found this review helpful

At about 53,900 miles, my 2004 5.3L developed a ticking noise. Turned out to be cracked cylinder heads. $3800 repair bill. I had it repaired and traded it for a brand new Tundra with 5.7L engine. No regrets.

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