Cooling Fan Runs Constantly

2003 s-10 4.3l v-6. The cooling fan runs constantly except when engine is off. When the engine is off i can manually turn the fan it is firm not extra loose or grinding. Help!!!!!

2003 s-10 4.3l v-6. The cooling fan runs constantly except when engine is off. When the engine is off i can manually turn the fan it is firm not extra loose or grinding. Help!!!!!

Manual clutch or electric fengine cooling fan?

Manual clutch or electric fengine cooling fan?


electric engine cooling fan.

Thanks ahead of time for any help.

Maybe it's an electrical fault somewhere, you should have it checked out, just now the motor burns out.

Factory setup or add on?

2003 s-10 4.3l v-6. The cooling fan runs constantly except when engine is off. When the engine is off i can manually turn the fan it is firm not extra loose or grinding. Help!!!!!

Any 'check engine' indicator?

Factory setup or add on?

Factory set-up

Any 'check engine' indicator?

no check engine light

Factory set-up

Rad fan?

Check relay and sensors that control the fan.
A good engine capable scanner would help you out on it.
Good Luck

Rad fan?

Check relay and sensors that control the fan.
A good engine capable scanner would help you out on it.
Good Luck

It is the rad fan. where should I go to find the scanner?

It is the rad fan. where should I go to find the scanner?
Dealer or Most good repair shop have them.
Should have a stored code.
Post back code no.
But to be on safe side switch the fan relay with a known good one first.
And run your vin no for recalls and TSB on the problem.
Good Luck

i'll bet it's your relay like he sais check that first.

Thank you everyone for your help. I will repost the code if I get one. And I will check the relay.

Deffinately check the wiring... Cause its possible that the wiring has melted together somewhere.. Only if you wire it straight to the battery will it not shut off.