2003 GMC Sierra 3500 Review | Edmunds.com

2003 GMC Sierra 3500

GMC Sierra 3500 Features and Specs

Features & Specs

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

Review of the 2003 GMC Sierra 3500

  • One of the biggest, most powerful pickups you can drive without going to trucking school.

  • Safety
  • Pros

    Powerful drivetrains, roomy interiors, numerous available amenities.

  • Cons

    Spotty build quality, cheap interior materials.

  • What's New for 2003

    The Sierra gets a revised look this year that includes a new front fascia, revised side moldings and optional multifunction, fold-away mirrors. On the inside, GMC has added new seats, a more comprehensive driver information center, a redesigned instrument panel and optional dual-zone climate control and satellite steering wheel controls. On the hardware side, the standard 6.0-liter V8 gets electronic throttle control as well as the ability to run exclusively on compressed natural gas (CNG) or a mix of CNG and gasoline. Other upgrades include an improved Insta-Trac part-time four-wheel-drive system for reduced service costs, a more efficient starter for the 8.1-liter V8 and a revised headlight switch that allows drivers to turn off the daytime running lamps.

What Others Are Saying

Customer Reviews

  Average Consumer Rating (7 total reviews)  |  Write a Review


Gmc 8.1drw excab

by on
Vehicle: 2002 GMC Sierra 3500

Only problem has been the left door speaker went bad. Only thing I don't like about it is that the rear springs clunk with just the camper on some bumps at lower speeds




Great truck

by on
Vehicle: 2002 GMC Sierra 3500

This is my 2nd GM diesel truck and it has operated flawlessly since delivery. The power and accelleration for a big truck makes it fun to drive. I tow a 14000 lb 5th wheel and can pass with ease going over the mountains. The mileage is about 10mpg with the trailer and running 65, without it runs about 18-19 mpg on the highway.



1 of 1 people found this review helpful

Gmc crew cab

by on
Vehicle: 2002 GMC Sierra 3500

awesome power with the turbodiesel and the cummins transmission. can pull the anchor(boat) with the camper up cascade passes and still pass empty powerstrokes




Disappointed

by on
Vehicle: 2002 GMC Sierra 3500

i really really really wish I had bought an F-350....




A real truck

by on
Vehicle: 2002 GMC Sierra 3500

This vehicle has surpassed all our expectations (except for the dealer who is mediocre). The cabin noise level is lower than most of the cars that I have owned in the last 15 years. Build quality is improved over the 95 GMC that I owned. I tow 10 to 13K pound loads on a daily basis. Hauling horses I routinely discuss trucks with other guys at horse events. I find that I can out haul them, get slightly better gas mileage and the TRUCK IS IN THE SHOP less than my Ford F350 friends (one of whom has sold his to buy a Chevy 3500). If you are looking for a real work rig, this is it.




The worst truck ever made

by on
Vehicle: 2002 GMC Sierra 3500

just doesn't stack up to the ford at all



Full 2003 GMC Sierra 3500 Review

What's New for 2003

The Sierra gets a revised look this year that includes a new front fascia, revised side moldings and optional multifunction, fold-away mirrors. On the inside, GMC has added new seats, a more comprehensive driver information center, a redesigned instrument panel and optional dual-zone climate control and satellite steering wheel controls. On the hardware side, the standard 6.0-liter V8 gets electronic throttle control as well as the ability to run exclusively on compressed natural gas (CNG) or a mix of CNG and gasoline. Other upgrades include an improved Insta-Trac part-time four-wheel-drive system for reduced service costs, a more efficient starter for the 8.1-liter V8 and a revised headlight switch that allows drivers to turn off the daytime running lamps.

Talk About The 2003 Sierra 3500

Gas Mileage

EPA-Rated MPG

  • Not Available
  • cty
/
  • Not Available
  • highway
Calculate Yearly Fuel Costs