Bumper: Testing and Inspection

INSPECTION AFTER COLLISION
The following components may require replacement if the bumper does not return to 80 to 90 percent of its original position after a collision:
^ The fascia may require replacement.
^ The energy absorber may require replacement.
^ The impact bar may require replacement.

ENERGY ABSORBER LEAKAGE
Diagnose the right and the left or the front and the rear bumper energy absorbers separately. Check each energy absorber separately for the following.

Some oil wetting may be visible due to the grease packed in the crimp recess. Therefore, a stain or a trace of oil on the piston tube near the crimp is normal. However, if oil drips continuously from the crimp or from the stud end of the energy absorber, replace it.

ENERGY ABSORBER DAMAGE
Take note of the following statements:
^ Do not try to repair a damaged energy absorber.
^ Replace the energy absorber if damaged.
^ Do not apply heat to the energy absorbers.
^ Do not weld the energy absorbers.

Look at the following components for signs of visible distortion:
^ Look at the bumper impact bar bracket.
^ Look at the piston tube. Scuffing of the piston tube oceans when it is stroked and this is considered to be normal.
^ Look at the frame bracket.
^ Look at the cylinder tube.

Replace the energy absorber it obvious damage is evident. Replace the energy absorber if a collision is so severe that the bumper impact bar does not return to its original position.