How much moisture? Was the vehicle in a flood?
Are you losing antifreeze? If so you probably need the intake manifold gaskets replaced. If you frequently take short trips, like around town only, take it out on the highway for a good run. With the engine at operating temperature any condensation will be burned off. HTH. -Jim
Search Chevrolet Silverado 1500 Questions
Chevrolet Silverado 1500 Experts