See also:

Checking Engine Cooling Fan
The engine cooling fan should come on automatically if the engine coolant temperature is high. ...

To help prevent corrosion
You can help prevent corrosion from getting started by observing the following: Keep Your Car Clean The best way to prevent corrosion is to keep your car clean and free of corrosive materials. At ...

Vacuum crankcase ventilation hoses
Inspect the surface of hoses for evidence of heat and/or mechanical damage. Hard and brittle rubber, cracking, tears, cuts, abrasions, and excessive swelling indicate deterioration. Particular att ...