Overview & Reviews

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.

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

• Unproven engines and drivetrains, cheap interior materials.

User Reviews:

Showing 1 through 10 of 20.00

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  First two years were heaven. - 2001 GMC Sierra 2500HD
  By T1 - June 4 - 10:00 am

  This last year has been quite another story. Ive had a complete Brake job including replacing all four rotors which were fine 2500 miles before. The sudden complete failure of all four brakes cost 1600 dollars for that. The four wheel drive switch has gone twice causing the truck to shift in and out of gears and fall out of 4WD. This also caused premature wear of the U-joints, which needed replacing. The fan motor now is going and needs to be replaced. The engine burns a quart of oil every 2200 miles and knocks like mad for the first five minutes of run time until its warm. The engine also knocks if I use any gas other than premium.