Used 2008 GMC Sierra 2500HD Extended Cab Consumer Reviews | Edmunds
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2008 Gmc Sierra-2500hd - Consumer Reviews

2008 GMC Sierra 2500HD Extended Cab

Average Consumer Rating

11 Total Reviews

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A refined, well built truck
Performance
Comfort
Fuel Economy
Fun To Drive
Interior Design
Exterior Design
Build Quality
Reliability
By MountainMan
on

Vehicle

2008 GMC Sierra 2500HD Extended Cab SLT 4dr Extended Cab 4WD SB (6.0L 8cyl 6A)


Review

Well designed, well built truck that is a pleasure to drive, but it struggles to pull my small 6000lb 5th wheel trailer over some moutain passes. ATF temps up around 215 deg although total weight well within published rating. Front end styling is ugly.


Favorite Features

Good interior styling. Good handling. Excellent transmission. Control features. Solid build quality


Suggested Improvements

Reduce engine noise Add higher capacity transmission cooler Refine front end styling Add passenger grab handle (like on 2003) Include mud flaps and side step bars - (these are essentials)


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Excellent HD choice & great value
Performance
Comfort
Fuel Economy
Fun To Drive
Interior Design
Exterior Design
Build Quality
Reliability
By Dave
on

Vehicle

2008 GMC Sierra 2500HD Extended Cab SLE1 4dr Extended Cab 4WD SB (6.0L 8cyl 6A)


Review

I got one of the first 08 2500HDs off the line as a custom order back in Aug. 07. For what I paid, this truck is an amazing value when compared to the F250s and Ram 2500s out there. The gas V8 has plenty of power and tows a 5000 lb trailer with ease. At first I had a problem with the transmission not downshifting easily in the 25-50 mph range, but the dealer flashed the ECU and now it's more responsive (although a bit less smooth- shifting - before it was like silk). Fuel economy has been mostly around 10-11 in the city, anywhere from 12-18 on the highway (the faster you go, the worse it gets). Most impressive is the quality. The interior and overall feel of the 2500HD is very solid.


Favorite Features

Gas V8 power. Smooth 6-speed auto. Front seat comfort. Interior look & quality. Exterior build quality. Not that rough of a ride (much better than my 01 Dodge Dakota and 04 Tacoma). Superb value for what you get.


Suggested Improvements

Make sure you get the ECU flash for the tranny, which makes it more responsive downshifting in the 25-50 mph range. Otherwise, 11 months and 12,500 miles later, no issues.


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Poor Gas Mileage
Performance
Comfort
Fuel Economy
Fun To Drive
Interior Design
Exterior Design
Build Quality
Reliability
By Sailer
on

Vehicle

2008 GMC Sierra 2500HD Extended Cab SLT 4dr Extended Cab 4WD SB (6.0L 8cyl 6A)


Review

9.5 mpg city 10.7 highway. Door handle under armrest is a pain to get to. 5.3 engine would give enough power as I run empty 95% of time Needed 2500 to plow snow. Needs cup holders in dash.


Favorite Features

Handles V Plow with ease. Large windows gives excellent view all around


Suggested Improvements

For better fuel economy. Drop out 2-4 cyl for highway driving like smaller eng. Large mirrors on all trailer tow packages. Flex Fuel


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7 months of ownership & still great!
Performance
Comfort
Fuel Economy
Fun To Drive
Interior Design
Exterior Design
Build Quality
Reliability
By GMCcowboy
on

Vehicle

2008 GMC Sierra 2500HD Extended Cab SLE1 4dr Extended Cab 4WD LB (6.0L 8cyl 6A)


Review

Bought my 2500HD 4x4 back in August. 8500 miles later, I still love the performance, comfort, and looks of it. I've made one 900+ mile trip towing a 4,000 lb. trailer, and it drove like there was nothing attached to it. The interior comfort is excellent. The seats are very comfy, and the quality is outstanding. I have not had any problems to speak of. I'm real impressed with this truck. The only downside is the gas mileage (to be expected). I average 12/13 in the city, 16-18 highway (depending on speed) and 12.5 towing a trailer on the interstate. Reckon the 6-speed auto helps the MPG a bit.


Favorite Features

Front seat comfort, acceleration (with 6.0 gas V8), ride for a HD truck, interior, good sounding stereo, quality, towing capability, solid build


Suggested Improvements

None


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Sharp comfortable work truck
Performance
Comfort
Fuel Economy
Fun To Drive
Interior Design
Exterior Design
Build Quality
Reliability
By efflandt
on

Vehicle

2008 GMC Sierra 2500HD Extended Cab SLE1 4dr Extended Cab 4WD SB (6.0L 8cyl 6A)


Review

I am just approaching its first 1000 miles, so 13.8 ave. mpg of the 6.0L gas engine in wet to snowy suburban/hwy driving may improve in milder/dry weather as it gets broken in. The SLE1 interior trim is a step up from your average work truck with comfortable seats and leather wrapped steering wheel. A smooth quiet ride for a heavy duty truck under most conditions. Feels heavy, but stable and turns on a dime when you want it to. The 26 gal tank may seem limiting, but that is still good for mid-300 mile range, farther than most people would drive without taking a break. Overall it would be hard to find a better truck.


Favorite Features

Precise handling, 6 speed transmission seems to be intuatively in the right gear for your driving style, but also has trailering (sport) mode or manual (+/- buttons). Driver information center including ave. mpg, miles remaining on fuel tank, tire pressures, oil life, etc. Styling inside and out.


Suggested Improvements

A bit bouncy unloaded on rhythmic expressway bumps from 18 wheel gravel trucks with no shocks, and a point off otherwise excellent interior for steering wheel not in line with seat/instruments, hiding voltmeter and part of speedometer. Instruments a bit bright fully dimmed for rural driving.


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