Strong cleaner thats safe for the engine, etc?

[ZachMan]

Going to clean up my greasey engine bay tommorow, crap all over the vavlve covers on down. Whats strong that won't screw up anything?

[90xj06]

TAKE YOU TPS OFF. they don't like water. i know they have been fixed for later models but better safe than sorry. other than that get some greased lightning. spray on scrub rinse and repeat. kind of like shampoo.

[old_man]

Castrol SuperClean!! Just don't get the TPS wet with anything including clean water. SuperClean can be bought at Walmart for around $6 a gallon. Squirt bottle and cover the engine. I then rinse it with hot water. It is alkaline so it cleans the battery well. Don't leave it in contact with aluminum for a long time or it will turn it slightly white.