[TitanBlue]

Originally Posted by SOCALTITANKC4X4LE

[color="Blue"][QUOTE=TitanBlue]Nice variety of answers. Steam is no longer recommended for any engines, as the steam will get inside electrical connections and form condensation which is trapped inside and forms corrosion. Cold water is best, or cold pressurized water, if kept away from certain areas. Remember that the starter islocated under the Intake cover, and on person ruined their starter, by cleaning the engine and getting the muddy water in the starter. Simple Green is an excellent cleaner. You can wipe the engine parts dry and use armour all to finish it off, sense it has so much plastic. A warm, not hot, engine is OK to aid in the cleaning action.[/QUOTEI respectfully disagree.
If that was true, then on rainy days our electrical systems would fail when ever we drove our trucks through a puddle or when off roading through mud and water.
I have 62K miles on my truck and Thousands of miles on other vehicles I've owned without any problems after cleaning the engines.

I understand your point, but still stand by my statement, which referred mostly to "steam". Water can still do it though. GMC Sierra Distributors of about 2001 had TSB's because of this. I've had our cap replaced 3 times due to moisture inside the cap, exactly like the TSB stated. Had it towed in once. My point is that "steam" can penetrate where water would normally not penetrate the seals. Steam is a much different animal. I would never steam clean my home computer or electrical devices leading to it. Failures do occur at times in harsh enviroments. The ensuing corrosion will occur later than just 62K, but it can happen. Not saying it has to happen. I work on wet electrical systems quite a bit. It takes time...