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:

    If No Steam is Coming from the Engine Compartment
    If an engine overheat warning is displayed but no steam can be seen or heard, the problem may not be too serious. Sometimes the engine can get a little too hot when the vehicle: ○ Climbs a ...

    Using the Radio
    (Power/Volume): Press to turn the system on and off. Turn clockwise or counterclockwise to increase or decrease the volume. (Information) (AM-FM Radio and AM-FM Radio with CD): Press to switch the ...

    Resetting the Power Folding Mirrors
    Reset the power folding mirrors if: • The mirrors are accidentally obstructed while folding. • They are accidentally manually folded/unfolded. • The mirrors vibrate at normal driving speeds. ...