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Low Speed Radiator Fan Relay

 
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Old 08 Sep 2009, 06:57 am
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Default Low Speed Radiator Fan Relay

Judging from the PT forum results, I would like to purchase and install a new Low Speed Radiator Fan Relay since my PT is idling rough and blowing warm air until I am driving. Where's the best place to buy one of these and where in the blazes is the darn thing?
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Old 08 Sep 2009, 07:25 am
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Default Re: Low Speed Radiator Fan Relay

The low and high speed fan relays are in the PDC (Power Distribution Center) located in a black box in the engine compartment in back of the battery. The air filter boxes have to be taken out to gain access. The diagram below shows all the fuses and relays that are in that box. The picture is 180 degrees opposite of what the box looks like but that's the way Chrysler shows it in the owners manual that you don't have.

After saying that, I can't remember anyone fixing the non-working fan by replacing either the low or high speed relay. Almost all the fan problems come back to the motor bushing burning out. Some have had electrical fan connection problems.



Oh, and if you decide to buy the relay, get one from a Chrysler/Dodge dealer. Aftermarket electrical parts have a bad record for not working. They are cheaper than a Chrysler part if they work but you might as well get one your sure of working.

Also, please either fill out your profile or give us the information about your PT as things change over the different years the PT was made. The information I've given you above is only for certain years of the PT.

Last edited by CREWZIN; 08 Sep 2009 at 07:30 am.
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Old 09 Sep 2009, 10:14 am
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Default Re: Low Speed Radiator Fan Relay

Thanks and sorry for not giving you more details....it's a 2006 PT touring edition, non-turbo. I haven't tested the fan, but from what I read in the forum it's either a relay or PCM issue. Please feel free to comment.
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Old 09 Sep 2009, 06:44 pm
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Default Re: Low Speed Radiator Fan Relay

Quote:
Originally Posted by gminfla View Post
Thanks and sorry for not giving you more details....it's a 2006 PT touring edition, non-turbo. I haven't tested the fan, but from what I read in the forum it's either a relay or PCM issue. Please feel free to comment.
Or the fan itself. There are 2 windings in the fan motor - low and high - and either one can fail.
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Old 09 Sep 2009, 07:21 pm
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Default Re: Low Speed Radiator Fan Relay

Usually it comes down to the fan itself or a broken wire to the fan or its connector.
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Old 27 Jun 2013, 11:55 am
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Default Re: Low Speed Radiator Fan Relay

Our '06 PT Cruiser started overheating the first year we purchased it.

This past weekend, we finally (after it topped 100 degrees) went and checked it out. We blew the 50 amp fuse and the hi/low relays located on the left of the fan did not appear to be working. Utilizing mini-jumper cables (attaching battery directly to the relays), we discovered that the fan did work.

We replaced the 50amp, replaced the hi/lo relays. 24 hours later, the 50amp blew again.

At this point, we believe we are going to "mini-jumper cable" the battery to the hi/lo relays using a toggle switch for activation.

Has anyone else had success with this? My husband is seriously concerned that we might start a car fire. :-)
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Old 27 Jun 2013, 10:23 pm
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Default Re: Low Speed Radiator Fan Relay

If you bypass the fuse and theres a problem the wires could overheat and possibly start a fire. There's a reason the fuse is blowing, I would check the wiring and see if any are visibly damaged or chafed and possibly shorting out.
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