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cooling fan no go on the low

 
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Old 21 Jul 2007, 06:09 am
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Default cooling fan no go on the low

I've seen similar issue discussed but my cooling fan will not come on the low side. We checked the relay and it seems to be working. I was trying to avoid replacing the cooling fan if possible, any suggestions?
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Old 21 Jul 2007, 07:04 am
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Default Re: cooling fan no go on the low

WELCOME to the forum. OK, so you say you've checked the relay. There's two relays (high & low) in the fuse box under the hood. Does the fan work on high speed? The computer controls the on/off of the fan and which speed is selected by means of sensors and your fan doesn't work above 35mph. Above that speed, the air coming in through the radiator should/does keep the water cool. Also, the number #5 (40amp green) fuse under the hood (picture below) is for both speeds of the fan, check that. Good luck.

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Last edited by CREWZIN; 21 Jul 2007 at 07:07 am.
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Old 28 Oct 2009, 09:54 am
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Default Re: cooling fan no go on the low

I have a 2002 PT Cruiser and have a question on the cooling fan operation.

I disconnected the cable to the cooling fan and applied 12 volts to the fan through the connector. I don't know what to make of the results.

When I apply 12 volts from the Black center wire to the Yellow wire the fan runs fast.

When I apply 12 volts from the Black center wire to the Green wire the fan does not run.

When I apply 12 volts from the Yellow wire to the Green wire the fan does not run.

Is this correct? How do I test for Fan High and Fan Low.

Also when the A/C is turned on the Low Fan does not come on. Any advise.
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Old 28 Oct 2009, 12:47 pm
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Default Re: cooling fan no go on the low

I have been through this just a few weeks back, the low speed part of the fan motor went bad. I found this out the hard way one night around 8:30 stuck in stopped trafic on I-75 when the PT over heated and I had to have it towed home.
The Black wire is ground, the yellow is High speed, and the Dark Green is low speed.
Good luck, but sounds to me like you need a new fan motor.
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Old 29 Oct 2009, 09:03 am
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Default Re: cooling fan no go on the low

Another question - High Fan - I know the relay works and I know the Fan works on high speed. If the car starts to overheat wouldn't the high speed fan turn on.
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Old 31 May 2012, 12:27 pm
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Default Re: cooling fan no go on the low

Quote:
Originally Posted by oldcoach View Post
I have been through this just a few weeks back, the low speed part of the fan motor went bad. I found this out the hard way one night around 8:30 stuck in stopped trafic on I-75 when the PT over heated and I had to have it towed home.
The Black wire is ground, the yellow is High speed, and the Dark Green is low speed.
Good luck, but sounds to me like you need a new fan motor.
I know, old post.. however.. can I splice jump the yellow and dark green wires together and always run on high (assuming my low side of the motor is shot)?
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Old 01 Jun 2012, 03:20 am
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Default Re: cooling fan no go on the low

oops, Old thread, I guess you could.
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Last edited by chigger_ns; 01 Jun 2012 at 03:27 am. Reason: old thread
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Old 27 Jun 2012, 01:22 pm
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Default Re: cooling fan no go on the low

Quote:
Originally Posted by oldcoach View Post
I have been through this just a few weeks back, the low speed part of the fan motor went bad. I found this out the hard way one night around 8:30 stuck in stopped trafic on I-75 when the PT over heated and I had to have it towed home.
The Black wire is ground, the yellow is High speed, and the Dark Green is low speed.
Good luck, but sounds to me like you need a new fan motor.
Could you please share what you had to do to fix the issue? did you have to replace the fan motor?

Thanks in advance for your reply.
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Old 27 Jun 2012, 02:08 pm
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Default Re: cooling fan no go on the low

even tho this thread is 3 years old and he probably isn't around anymore, he most likely replaced the whole fan assembly.

check ebay or rockauto. prices range $85 to $100.
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Old 27 Jun 2012, 06:41 pm
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Default Re: cooling fan no go on the low

He no doubt put in the whole new fan. They're almost the same price as the fan motor. I've heard a few complaints about E-bay fans (probably because it's a crap shoot as to who is making the particular one you buy). RockAuto.com has a Dorman fan for fairly cheap--and it has a lifetime warranty. When I need another fan, I will go that route.

Tim
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