In cases where stress relieving must be performed, use only cold stress relieving, adds Larsen. When cold stress relieving procedures fail during the repair, the part must then be replaced. In most instances cold stress relieving in the form of hammering is replacing heat in modern vehicle repairs. Additionally, a common problem with frame replacement is technicians fail to straighten original frame to specification prior to replacement, causing cab and other components not to fit properly after frame change is performed. This becomes a Training issue.
Training can also be factor when it comes to repairs.
Uni-bodies as representing upwards of 80 percent of structural repairs until the past few years when the truck craze hit. When unibodies entered the market in the early 1980 s, technicians were not prepared for the design changes. Now changes have gone full circle. Some current technicians with little or no experience when it comes to diagnosing and correcting frame vehicles. All of these changes pose a new frontier that must be explored before any repair can be performed properly.