02blue
Comfortably numb
Blower relay and fan relay are same part number so that was a good swap.
Wonder if the relay isn't getting a signal from the temperature sensor.
Wonder if the relay isn't getting a signal from the temperature sensor.
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This makes me want a mechanical fan pretty bad. Electric fans have their place but I like a backup.
Yup, i do. Only reason ive not done it is from worrying about hurting the already horrible mpg. She struggles to get 17-18.
'02-'04 KJ's use a 1 speed fan with the relay under the battery,'05+ KJ's use a 2 speed fan with a high and low relay in the under hood fuse box.In both cases the fan is controlled by the PCM.Just as an fyi incase youre curious. May already know this. The A/C turns on the low speed fan. I do not believe it will turn on the hi speed unless the engine calls for it.
I would like to know what replaced the relay that pre-04 kj's have on the fender? I feel like Ive read it before when tjkj posted something about it but I cant remember. This makes me want a mechanical fan pretty bad. Electric fans have their place but I like a backup.
The setup on my 5.9 zj is great. It has a low speed sensor in the top radiator hose and a high speed sensor in the lower radiator hose. When the coolant gets to a certain temp the upper hose kicks the fan on low. When the temp gets too high coming out of the radiator in the lower rad hose it kicks the fan on high. The A/C also kicks it on low with another sensor in the a/c coolant hose. Its idiot proof. Doesn't involve the computer at all.
If you want to add the mechanical fan all those clutch's specific to the KJ do not fully lock until about 230 degree's as it's considered a AUX cooling fan on a KJ.
Could be possible late '04's got the new setup but all the '04's I've worked on have had the relay under the battery and single speed fan.Guess the late 04's got the dual speed fan? Or is that b/c i have the fan that came with the towing pack? Mine has the two relays and no relay under the battery.
I wouldnt want the hd clutch or a clutch-less fan. I would only want it to keep my engine from over heating in an emergency. Say im sitting in traffic and my electric fan craps out. I could at least drop the ****** in n and keep the rpm's up to move some air.