'06 KJ. When I turn the air on, whether AC, heat, or just air, it only blows on 4. 1, 2, and 3 do nothing. So it's either no air or full blast. The knob turns normally and the stops on the numbers are not any different from before. Any ideas?

Thanks.

This is the problem.
viewtopic.php?p=397012#p397012

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2003 KJ Renegade, 5 speed, frankenlifted,Al's a Arms 4.5,Moabs 245/75/16 BFG KM2's, custom rock rails, full Mopar skids, Hella ff220 lights,Hd cooling,Front DTT,Riddler diff cover,Rola safari rack,Cobra 29 peaked & tuned.

Pastafari Alum, Pink shovel recipient

Very common failure, many of us have gone through this before. Good news, easy fix. Follow the link kskj provided.

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http://www.cardomain.com/ride/2434197
2002 Liberty Renegade
-OME 927-Rancho RSX 17505-3 Ring Clevis-JBA UCA-Teraflex Bump Stop
-JBA-LIB25R Rear Coil-2 Upper/Lower Iso-Skyjacker H7088 Shocks-3 Hockey Puck Bump Stops
-Powerslot Rotors-Moab Rims-BFG TA/KO 265-75-R16
-ARB Bumper-Rock Rails
-Super 44 Exhaust
+ Some More Crap

Thank you very much. I got the part at the local dealership for $24.

Done. Thank you very much.