Cooling Fan Runs Constantly

tcoltrain · #1 10-22-2008, 12:47 AM

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!!!!!

MT-2500 · #2 10-22-2008, 08:53 AM

Quote:

Originally Posted by tcoltrain

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?

tcoltrain · #3 10-22-2008, 09:39 AM

Quote:

Originally Posted by MT-2500

Manual clutch or electric fengine cooling fan?

electric engine cooling fan.

Thanks ahead of time for any help.

Candygirl82 · #4 10-22-2008, 09:42 AM

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

MT-2500 · #5 10-22-2008, 11:27 AM

Factory setup or add on?

Schrade · #6 10-22-2008, 12:50 PM

Quote:

Originally Posted by tcoltrain

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?

tcoltrain · #7 10-22-2008, 03:39 PM

Quote:

Originally Posted by MT-2500

Factory setup or add on?

Factory set-up

tcoltrain · #8 10-22-2008, 03:40 PM

Quote:

Originally Posted by cbec1999

Any 'check engine' indicator?

no check engine light

MT-2500 · #9 10-22-2008, 04:58 PM

Quote:

Originally Posted by tcoltrain

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

tcoltrain · #10 10-22-2008, 05:54 PM

Quote:

Originally Posted by MT-2500

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?

MT-2500 · #11 10-22-2008, 06:01 PM

Quote:

Originally Posted by tcoltrain

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

Scrapper · #12 10-22-2008, 06:16 PM

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

tcoltrain · #13 10-22-2008, 06:51 PM

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

SuperTen · #14 05-16-2009, 08:32 PM

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.

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