Blower motor resistor

[Mexdsk]

Looking for a replacement part for my 1978 Cherokee.
Fan operates on high speed only.
Seems like it should be easy to repair if I knew what resistors to buy to replace the existing coil things on it.

I thought I saw a thread on this here about doing this, but my searching did not find it.

If someone knows where to find a replacement or which resistors to purchase please let me know.

Thanks

[KC87Wagoneer]

http://www.ryderfleetproducts.com/ryder/ Enter the original part number here. It should be stamped on the resistor. I just replaced mine and this was the only place that had the correct one.

[Mexdsk]

no part number on it.

[carnuck]

Check out a NAPA BR124

[Jepht20]

I used a YJ one on my J20 and it seemed to work fine.

http://www.ebay.com/itm/321579316845?_t ... EBIDX%3AIT

[Mexdsk]

I used a YJ one on my J20 and it seemed to work fine.

http://www.ebay.com/itm/321579316845?_t ... EBIDX%3AIT

What year YJ is that from?

[Jepht20]

I think they all use the same one. 87-95

[Mexdsk]

Replaced the resistor with one for a 1992 YJ
Fan still only working on high
Need to torouble shoot a bit more.

[carnuck]

There are 2 resistors '87 up. One on the driver's side AC tube is for AC. Heater one is above passenger's feet (I think)

[Mexdsk]

I am working on a 1978, with new 1979 wire harness (from Z&M jeep), no AC.
So should only be the one resistor.
This was tested with jeep not running, not sure if it running will make a difference.
Will need to do the generic is there power at the resistor with the fan switch in all positions, I suppose the switch could be bad also.

[tbwingy]

Hello!

Did you get your blower motor resistor issue solved? I have an 83 J10 with same issue. Where is the resistor located?

Thank you! Tommy

[tbwingy]

Hello!

Did you get your blower motor resistor issue solved? I have an 83 J10 with same issue. Where is the resistor located?

Thank you! Tommy

[mx71]

I used one from a CJ on my 79. Napa part number ECH BR430.

tbwingy: The resistor is located on the heater core cover on the passenger side firewall.

[candymancan]

Replaced the resistor with one for a 1992 YJ
Fan still only working on high
Need to torouble shoot a bit more.

Check your relay.thingy in the engine compartment.. the harness on the relay for mine wasnt plugged in all the way so i had only high speed nothing in between or low.

Its on thr firewall. Drivers side for me anyway above the main wire harness..

The relay.resistor plug thing on the heatercore or near it for me is unplugged just has prongs sticking out nothing else.. my heater uses thr one on the drivers side