Question 1

What should be checked for those involved in accidents with frame damage or significant body damage regarding the steering column on Buick LeSabre?

Accepted Answer

Accidents leading to frame damage together with substantial body or sheet metal damage and Steering Column impacts as well as events where supplemental inflatable restraint systems deploy will potentially damage or misalign the Steering Column. Verify the capsules on the Steering Column bracket assembly fit their slots correctly and inspect for loose conditions by manually testing their stability. A bracket replacement is necessary only when capsules on the bracket fail to stay properly seated and when the bracket connects to the jacket assembly. Replace only the jacket assembly if the weld connects the bracket to it while the capsules on the bracket remain unsecured. Jacket assembly replacement is necessary when measurement from upper jacket lower edge to defined lower jacket point exceeds specifications. Bearing and adapter assembly should be inspected for tab breakage and the Steering Shaft needs visual inspection for sheared injected plastic. Any sheared plastic requires a new Steering Shaft. Excessive runout at the lower end of the Steering Shaft needs to be measured with a dial indicator while turning the steering wheel to determine whether the runout amount exceeds 1.60 mm (0.0625 inch).

Question 2

What should be inspected on those involved in accidents that may have a damaged or misaligned steering column on Buick LaCrosse?

Accepted Answer

The Steering Column of vehicles ends up misaligned or damaged when accidents happen resulting in frame damage and major body damage and sheet metal damage and impact to the Steering Column and deployment of supplemental inflatable restraints system. Review the Steering Column bracket assembly capsules and verify their proper seat in bracket slots while checking for loose conditions through manual push and pull actions. Inspect the bracket attachment to the jacket assembly before deciding to replace it; the bracket needs replacement only when capsules fail to sit properly yet the bracket stays bolted to the jacket assembly. The jacket assembly requires replacement when both the brackets have secure capsule seating while being welded to the jacket assembly. The measured distance between the lower edge of the upper jacket and the defined point on the lower jacket must be checked for collapse in the jacket assembly; the jacket assembly requires replacement if the measurements fall outside the specifications. Check the Steering Shaft for broken areas of injected plastic material; replacing the shaft becomes necessary if such damage exists. A dial indicator check of the Steering Shaft runout at the lower end through wheel rotation must be performed when frame damage might have bent the shaft. The measured runout should stay below 1.60 mm (0.06 inch).

Question 3

What should be checked and replaced with potential steering column damage after an accident on Buick Regal?

Accepted Answer

Vehicles sustaining frame damage together with major body damage or sheet metal damage or impact to the Steering Column or deployment of supplemental inflatable restraints systems might develop a damaged or misaligned Steering Column. Verify that the Steering Column bracket capsule components stay firmly in place through the slots while using hand-pressure tests on all components; immediate replacement of bracket assemblies is necessary using new parts when brackets are bolted to jacket structures or jacket assemblies when brackets are welded. Steady the upper jacket at its lower edge and determine the distance to a specified point on the lower jacket to detect jacket collapse; proceed with a new jacket when measurements deviate from standards. Steering Shaft examination must include an assessment for sheared plastic; if sheared plastic appears then install a new Steering Shaft. Any frame damage that might bend the Steering Shaft requires a dial indicator check of the Steering Shaft runout at its lower end during steering wheel rotation. The runout must stay under 1.60 mm.

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