Suspension Strut and Shock Absorber Testing - On Vehicle

WARNING: This page is about a different car, the 2023 GMC Sierra 3500 HD and 2023 GMC Sierra 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

Step	Action	Yes	No
1	Did you review the General Diagnosis Symptoms and perform the necessary inspections?	Go to Step 2	Go to Symptoms - Suspension General Diagnosis
2	Verify that the customer's concern is present. Does the vehicle operate normally?	System OK	Go to Step 3
3	IMPORTANT: A light film of oil on the top portion of the shock absorber reservoir is normal. Inspect each shock absorber for external fluid leakage.Is a shock absorber leaking?	Go to Step 5	Go to Step 4
4	Use your hands to lift up and push down each corner of the vehicle 3 times. Remove your hands from the vehicle. Locate a shock absorber that exceeds 2 cycles. Did you locate shock absorber that exceeds 2 cycles?	Go to Step 5	Go to Step 6
5	IMPORTANT: Inspect the vehicle trim height in order to correct any possible causes of shock absorber failure. Trim Height Inspection . Replace the affected shock absorber. Front Shock Absorber Replacement Rear Shock Absorber Replacement Did you complete the repair?	Go to Step 6	-
6	Operate the vehicle to verify the repair. Did you correct the condition?	System OK	Go to Step 3