Under the Hood

General Motors offers a selection of five engines to accommodate a variety of cargo- and passenger-hauling requirements. Choices begin with a 200-horsepower, 4.3-liter V-6 for the G1500 van. Depending on the model, a 220-hp, 5.0-liter V-8 or a 255-hp, 5.7-liter V-8 are the standard powerplants for G2500/3500 vans. Options for heavy-duty models include a new 340-hp, 8.1-liter Vortec 8100 V-8, replacing the 7400 engine. GMC claims that the new 8100 engine is more economical than its predecessor. A 195-hp, 6.5-liter diesel V-8 also is available.

All models have a four-speed-automatic transmission. When properly equipped, a G1500 van can tow as much as 7,300 pounds, while the G3500 diesel can pull as much as 10,000 pounds. This year’s engines have a new powertrain control module and a more efficient alternator, and automatic transmissions for heavier-duty models have received some internal enhancements.

Four-wheel antilock brakes are standard, and side-impact airbags are not available.

    See also:

    Using the Auxiliary Input Jack
    Radios with an auxiliary input jack located on the lower right side of the faceplate can connect to an external audio device such as an iPod®, MP3 player, or CD player, for use as another source for ...

    Accepting or Declining a Call
    When an incoming call is received, the infotainment system mutes and a ring tone is heard in the vehicle. Accepting a Call Turn the MENU/SEL knob to “Answer” and press the MENU/SEL knob to acc ...

    Backing Up
    Hold the bottom of the steering wheel with one hand. To move the trailer to the left, move that hand to the left. To move the trailer to the right, move your hand to the right. Always back up slowly a ...