2001 GMC Sierra 2500HD Extended Cab Review | Edmunds.com

2001 GMC Sierra 2500HD Extended Cab

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GMC Sierra 2500HD Features and Specs

Features & Specs

  • Engine 6.0 L V 8-cylinder
  • Drivetrain Four Wheel Drive
  • Transmission 4-speed Automatic
  • Horse Power 300 hp @ 4400 rpm
  • Fuel Economy 0/0 mpg
  • Bluetooth No
  • Navigation No
  • Heated Seats Yes

Review of the 2001 GMC Sierra 2500HD

  • With both a light- and heavy-duty version, GMC's 2500 series Sierra offers just about every option you could ask for in a full-size three-quarter-ton pickup.

  • Safety
  • Pros

    Class-leading engines and hauling capacity, roomy interior, superior brakes.

  • Cons

    Unproven engines and drivetrains, cheap interior materials.

  • What's New for 2001

    Both light- and heavy-duty 2500s sport new torsion bar front suspensions. Light-duty models now offer optional traction control and standard child safety-seat tethers. Heavy-duty Sierras are completely redesigned for 2001 offering two new engines and transmissions, bigger interiors and numerous other improvements aimed at buyers looking for a "professional grade" truck from GM.

What Others Are Saying

Customer Reviews

  Average Consumer Rating (11 total reviews)  |  Write a Review


I'll only buy duramax

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Vehicle: 2001 GMC Sierra 2500HD 4dr Extended Cab SLT 4WD LB w/OnStar (6.0L 8cyl 4A)

This is by far the greatest and most comfortable truck ever made. And if power and performance are what you want then this is the truck for you. The only trouble I had was with the injectors and luckily they were covered by the LB7's extended 7year/200,000mile warranty. Other than that I have never had trouble with this truck. Plus the aftermarket for Duramax's is so wide open to your imagination.




Beats my wifes f250

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Vehicle: 2001 GMC Sierra 2500HD 4dr Extended Cab SLT 4WD SB w/OnStar (6.0L 8cyl 4A)

I bought the Duramax, had a 2001 f250 figured I'd try it. Man let me tell you, quite as a mouse compared to Dodge and Ford and the power surprised me. the leather is no comparison to Fords, (does Dodge have leather?) When we moved from W. Colorado to Central TX I pulled a trailer ( over 8,000 lbs) over those mountians not even much strain, fact had to wait for the Ryder at the top, but no surprise there. My wife wants one now, the ride is like a good sedan and Im not kidding its that good, my fuel varies between 20 - 21 mpg our Ford around 16mpg 4 people who have driven my truck bought one, best vehicle I've ever had.




Not professional grade

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Vehicle: 2001 GMC Sierra 2500HD 4dr Extended Cab SLE 4WD SB (6.0L 8cyl 5M)

The 6.0 engine knocks a little until warm...other than that it's ok. Lacks real pulling power, even with a 410 rear end. Tranny went out at 9700 miles. Power window regulator at 37000 miles ($500), Rotors now acting up at 47000 (all of a sudden??) Pampered truck. Goes to FL with a light trailer and back annually, othewise no strain. Hauls nothing. Looks like the 8.1 and the Allison was the way to go. Ride was real choppy from day one. I mean bouncey on an uneven road! Hang on in the rear seat! GM should be able to do MUCH better than this. They say every HD truck is made for 200K...at what expense?




My 2500 hd

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Vehicle: 2001 GMC Sierra 2500HD 4dr Extended Cab SLE 4WD SB (6.0L 8cyl 5M)

Overall Good Truck. I am impressed with the sturdiness of the truck. The 6.0L has provided plenty of power with only occasionaly towing. However, the engine began knocking for the first 5 minutes on start up at about 17000 miles. GM says it's o.k. but extended the engine warranty to "make me feel better." Had to have work done on steering column as it began knocking when I hit bumps. Speaker in passenger door had to be replaced. I am now noticing some delay or slip in the transmission when the stop light turns green. A little scared where this all might lead. Don't have the Allison.




One helluva truck!

by on
Vehicle: 2001 GMC Sierra 2500HD 4dr Extended Cab SLT 4WD SB w/OnStar (6.0L 8cyl 4A)

My overall experience has been great! The only problem that I have had in the last 2 1/2 years is the driver side mirror defroster died and had to be fixed. No major mechanical problems and I think it is a comfortable full size truck to drive.




Seats not up to mar

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Vehicle: 2001 GMC Sierra 2500HD 4dr Extended Cab SLE 2WD SB (6.0L 8cyl 5M)

For a top of the line truck that listed for over $32000 new you would think the company would put in better seats ;such as more padding in the bottom seat and go back to having the whole seat move by power not just the bottom. (this is for the cloth seat). the seats in my 1997 were more conforbly , other than the seatr it is an excellent truck.



Full 2001 GMC Sierra 2500HD Review

What's New for 2001

Both light- and heavy-duty 2500s sport new torsion bar front suspensions. Light-duty models now offer optional traction control and standard child safety-seat tethers. Heavy-duty Sierras are completely redesigned for 2001 offering two new engines and transmissions, bigger interiors and numerous other improvements aimed at buyers looking for a "professional grade" truck from GM.

Talk About The 2001 Sierra 2500HD

Gas Mileage

EPA-Rated MPG

  • Not Available
  • cty
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  • Not Available
  • highway
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