Cooling fan? will only come on when: vehicle temp exceeds 235o F or when a/c or defroster is activated
Check to see if you are getting power to fan motor turn on A/C or defroster If you are getting power to fan - then fan is defective If not check fuse Could be temperature sending unit in radiator
look in the yellow pages
Check the fan control
A worn transmission gear can cause a Chevy Impala to whine when the gears change. A bad fan belt can also cause this.
Being the huge supernatural fan that I am, it surprises me when ppl don't know. But it's okay, it's a 1967 Chevy impala.
I too am having the exact same problem!
You need to have the fan replaced!!! Make sure to get one from Chevy because it is an OEM product... Don't get a rebuilt or replaced from your Schmucks.
Bad thermostat, radiator, improperly working fan.
This is a diagnostic process. If the coolant isn't low and the fan will run when the AC is turned on it will need a Mechanic to Diagnose.
check the fueses check fueses
Blown fuse, motor burnt up, or the fan relay switch is bad.