How can I tell if fan clutch is OK or needs to be replaced? on 2002 Ford Ranger

Truck will overheat in hot weather. To get it to cool down I need to turn on the heater on high and let the blower motor help to cool engine down.

by in Sherman, TX on June 04, 2011
1 answer 4 comments
ANSWER by on June 05, 2011
You could have a thermostat issue also... To check the fan clutch -- With the engine off: Check for any oil leaks at the clutch. If there are any - replace it. Check for any looseness - could be sign of failure. Check to see if it's too tight or too loose spinning. Replace it either way.
COMMENT by on June 06, 2011
OK I did not see any oil leaks at the clutch. The fan is not tight but maybe is alittle loose. When I compare it to the clutch on my big pick-up it spins easier, but the big pick-up has a power stroke diesel so I don"t know if the two can be compared or not. The fan in the ranger has alittle wobble to it when I wiggle the fan blades from side to side. Should I be replacing the fan clutch,or maybe start with the thermostat first. Thanks.
COMMENT by on June 06, 2011
Which engine is it? I would think thermostat first...purge the air out of the cooling system, and then recheck.
COMMENT by on June 07, 2011
It is the 2.3 liter engine. I think I will start with the thermostat first. Thanks again.
COMMENT by on June 07, 2011
Yes, good call; do advise.