just started happening yesterday.. i had the fan on position 3 and then turned it to position 4(high) and when i went back to 3 it doesnt blow...it only blows on 4 now..no 1 2 or 3. would that be a fan prob or just the control?

Thanks
Tee Jay

 

Blower motor resistor. it allplies resistance on 1-3 to slow it down and is bypassed on 4, which is why it works on 4. I think its under the glovebox somewhere and pretty cheap. under $20 IIRC

 

^^This sounds like your problem^^
It is a very simple fix. And, It is located under the passenger side behind the glove box.

 

thanks a bunch guys

 

Just replaced my blower resistor a week ago. You'll need to remove the kick panel to exposed the plug and resistor. Be sure the air flow in not blocked, else you'll be replacing it again soon. Needs cool air to remove the heat from the resistor.

Best price I found was Amazon, ~$18, otherwise $50.

 

http://www.autozone.com/autozone/par...er=358826_0_0_

$22, right at AutoBone

 

kick panel below the glove box?

 

Yes Sir. Not the side but under the glove box. It held on with only a couple of screws. You just need to get under there to see it. It took me about 1/2 an hr. and that was with a bad back.

 

Im having the same problem but after running on 4 for a while it now completely stopped working. I replaced resistor because it was all rusted and replaced motor still nothing. any ideas?

 

Hey, this is great - I am having the same issue! Heat only works on high lol

Maybe this is related (not meaning to crash the thread!) - mine also only works on defrost? Vent, floor, mix, etc...if selected it still blows defrost....

 

COLUM...i had the same issue with defrost...you have a vac leak somewhere..or clog

 

im haveing the defrost being the only thing working problem as well. does anyone know where the "vac leak" or "clog" would be???

 

The vac leak can be anywhere from the vac ball behind the front bumper pass side all the way to the fire wall. As for a clog, It's can also be the blend door is sticking.

 

any idea of how to get to the "blend door"?

 

http://www.heatertreater.net/jeep%20...e%2097-04.html