The steering linkage and suspension components should be checked periodically, as worn or damaged parts can lead to excessive tire wear, poor ride quality, handling issues, and reduced fuel economy. To check the shock absorbers, park the vehicle on level ground, turn off the engine, and set the parking brake while checking tire pressures. Push down on one corner of the vehicle and release it, noting that it should stop moving and return to a level position within one or two bounces; if it continues to move or fails to return, the shock absorber may be worn. Repeat this check at the other corners, then raise the vehicle securely on jack stands. Inspect the shock absorbers for fluid leakage, particularly at the point where the rod meets the strut body, and ensure any noted fluid is from the shocks. Check that the shocks are securely mounted and undamaged, replacing them as a set if any damage or wear is found. For the steering and suspension check, visually inspect components for damage, distortion, and leaks, particularly at seals, boots, and bushings. Clean the lower end of the steering knuckle and have an assistant move the wheel in and out to check for movement at the ball joint; any movement indicates a need for replacement. Grasp each front tire to check for play in the steering system, focusing on the idler arm and tie-rod ends if free play is noted. Lastly, inspect the CV boots for tears, cracks, and loose clamps, flexing them by hand to check for leaks; any evidence of damage requires replacement to protect the constant velocity joints from dirt and moisture.