FORD 2001 Ranger - Manual (Page 236)

Cleaning the engine
Engines are more efficient when they are clean because grease and dirt
buildup keep the engine warmer than normal. When washing:
• Take care when using a power washer to clean the engine. The high
pressure fluid could penetrate the sealed parts and cause damage.
• Do not spray with cold water to avoid cracking the engine block or
other engine components.
• Cover the highlighted areas to prevent water damage when cleaning
the engine.
• 2.3L
Maintenance and care
236