See also:

Keep Your Car Clean
The best way to prevent corrosion is to keep your car clean and free of corrosive materials. Attention to the underside of the car is particularly important. o If you live in a high-corrosion area ...

Check spark plugs and ignition system
Inspect your spark plugs as described in section 7 and replace them if necessary. Also check all ignition wiring and components to be sure they are not cracked, worn or damaged in any way. ...

Steering Gear Box, Linkage & Boots/Lower Arm Ball Joint
With the vehicle stopped and engine off, check for excessive free-play in the steering wheel. Check the linkage for bends or damage. Check the dust boots and ball joints for deterioration, cracks, ...