GM Service Manual Online
For 1990-2009 cars only

Problem

Action

The use of equipment such as snow plows for which the frame is not designed.

Straighten and reinforce the frame. Refer to Frame Straightening Description .

There is a collision involving the vehicle.

There is a fire involving the vehicle.

There are abrupt changes in section modules.

There is improper body or accessory mounting:

    • Holes are drilled in the flange of the frame rail.
    • The holes in the web section are too close to each other.
    • Four or more rails are in the same vertical line of the rail web.
    • There are welds on the flange, particularly across the flange or along its edge.
    • Cutting holes in the rail with a torch.
    • There are cutting notches anywhere on the rail.