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Used 2008 GMC Sierra 1500 Crew Cab Consumer Reviews

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$8,357 - $12,179

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3.25 out of 5 stars

Check carefully before you buy

txcwby, 12/27/2013
2008 GMC Sierra 1500 SLT 4dr Crew Cab 4WD 5.8 ft. SB (5.3L 8cyl 4A)
17 of 17 people found this review helpful

Overall, i would not buy this truck again due to repair costs. At 104,000 miles (notice it's just outside the warranty) engine heads both cracked - with the mileage and the reported issues about oil usage and AFM related issue, it makes more sense to replace with a GM crate engine than to solve part of the problem. Mileage on E85 is 14mpg in 2wd if you are an extremely light footed driver. With 87 octane, the average mpg (light foot) is 18mpg-19mpg in hilly terrain. As a cowboy and rancher, my vehicle is my lifeblood and cost of ownership and reliability is key. This truck just hasn't met the minimum expectations. Cost for new engine at GM dealer - $7,898.77

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*The Manufacturer's Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees and optional equipment. See your GMC dealer for details.

3.5 out of 5 stars

Collapsed Lifter 5.3L AFM

ricosha3, 10/16/2013
2008 GMC Sierra 1500 SLT 4dr Crew Cab 4WD 5.8 ft. SB (5.3L 8cyl 4A)
24 of 26 people found this review helpful

There appears to be a problem with the lifters in these 5.3L AFM engines that GM won't admit. At 87K miles and 5.5 years old GM garage says lifter is collapsed & wants to replace all 16 @ $3400 & @ my expense. There are lots of posts from drivers with this problem but GM won't admit and GM Customer Service is only lip service... "out of warranty sucks to be you". GM & the dealers don't care... take my advice and buy a Ford. I'm stuck with this piece of crap cause I just paid it off and can't afford to buy another $40,000 mistake. BTW: this AFM engine is the same as in current models... beware!

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3.75 out of 5 stars

Fit and finish

mesalaxdad, 12/30/2010
2008 GMC Sierra 1500 Denali 4dr Crew Cab 5.8 ft. SB (6.2L 8cyl 6A)
7 of 7 people found this review helpful

So I've had the truck less than a year. It has only 18k on it. I've had to replace two door lock switches. I've also replaced a leaky oil pan gasket. It's been in the dealership 3 times. When I wash it the door moldings leak for hours.

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4.88 out of 5 stars

GMC Sierra Denali AWD

Brent, 06/11/2008
2008 GMC Sierra 1500 Denali 4dr Crew Cab AWD 5.8 ft. SB (6.2L 8cyl 6A)
12 of 14 people found this review helpful

Very impressed with this vehicle. Sold my 175K mile Sierra and due to its excellent performance, I'm sold on GMC. The Denali drives and handles great. 18mpg hwy and 16.4 in town. Not bad for a 6.2 ltr V8. My previous 4.8 ltr V8 only beat that by 1mpg! My vehicle came loaded w/options and couldn't pass it up for $38.5K. With gas prices I think they are really having to come down on these things. Very quiet ride on the highway and around town. It does need more storage compartments/center console organizer. I would rather the center console open from the side rather than front. It's somewhat awkward and has a rather flimsy spring hinge.

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5 out of 5 stars

GMC got it Right!

J. Barton, 09/14/2007
2008 GMC Sierra 1500 SLT 4dr Crew Cab 4WD 5.8 ft. SB (5.3L 8cyl 4A)
5 of 5 people found this review helpful

GMC got it (finally) right with this one. Replaced a 2004 with this vehicle, comparison is like night and day. Fun to drive, good mileage, 18.8mpg in first 500 miles. This one is a winner for GMC. So glad we didn't give up on them and head to the Japnese market. Great interior, fine fit and function and good looks too. I love this truck!

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