Operation CHARM: Car repair manuals for everyone.

Technician Safety Information

WARNING: To avoid being scalded, never change the coolant when the engine is hot.
Wrap a thick cloth around cap and carefully remove the cap. First, turn the cap a quarter of a turn to release built-up pressure. Then turn the cap all the way.

CAUTION:
Do not open the radiator cap while changing engine coolant. Fill the radiator only from the filler cap above the radiator upper hose with radiator cap closed.