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  #13  
Old 03-16-2014, 05:13 PM
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Originally Posted by dino2004 View Post
Ok thanks ill check it out
just for your information there is no relay under right head lamp not in a special edition thats why it has a hi n low relay in fuse box
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  #14  
Old 03-16-2014, 06:48 PM
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Re: WJ Raditor fan relay woes

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Originally Posted by dino2004 View Post
just for your information there is no relay under right head lamp not in a special edition thats why it has a hi n low relay in fuse box
I don't know what the special edition is, but all 2004 WJ's with 4.0L should have the two relays (high and low) in the PDC and not the single PWM relay under the headlight. I think that the relay under the headlight was giving too many problems, that they changed to the hi/lo speed relays.
The schematic i had supplied is showing the two separate relays for the 2004 models.
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Old 03-16-2014, 07:59 PM
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Quote:
Originally Posted by Frango100 View Post
I don't know what the special edition is, but all 2004 WJ's with 4.0L should have the two relays (high and low) in the PDC and not the single PWM relay under the headlight. I think that the relay under the headlight was giving too many problems, that they changed to the hi/lo speed relays. The schematic i had supplied is showing the two separate relays for the 2004 models.
Yes i have the grand cherokee laredo special edition im thinking if the thermostat is bad the antifreeze isnt getting to the thermo sensor to activate fan?
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Old 03-16-2014, 08:43 PM
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Re: WJ Raditor fan relay woes

No, the thermostat will not have influence on that, the temperature is measured on the engine side. Did you check the cooling fan fuse (fuse 10 (40A) in the PDC under the hood)?
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Old 03-17-2014, 05:07 AM
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Originally Posted by Frango100 View Post
No, the thermostat will not have influence on that, the temperature is measured on the engine side. Did you check the cooling fan fuse (fuse 10 (40A) in the PDC under the hood)?
Yes its good i guess its the fan , but it did see the fan working at an idle once i changed the temp control sensor but after that day it hasnt gone on
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Old 03-17-2014, 06:04 AM
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Re: WJ Raditor fan relay woes

Use a jumper cable and put 12v directly on the fan motor (take care, not to make any short and keeping a safe distance from the fan blades).
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Old 09-24-2014, 01:06 AM
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Re: WJ Raditor fan relay woes

Just to throw this in the mix, there was a recall on the 99-04's for the fan relay. I do believe the dealer replaced them for free if yours was one of the recalls. I'll try to find a link and post it. My '00 laredo had to have a new fan relay, and i paid a mechanic to do it, then found out about the recall later on.


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