JEEP TJ CLIMATE CONTROL

I Have A 92' Jeep Wrangler. Can I And Is There A Benefit To Disconnecting The A/c Which I Never Use? Will The Heater Still Work?

Heater, Air Conditioner And Defrost Is Not Blow Out Air On Any Setting. Changed Fuse, No Joy. Where Do I Go Next?

My Jeep Tj Blows Heat On Low But As Soon As I Increase Temperature, It Starts To Blow Cool Air.I Also Notice A Smell Of Antifreeze. I Need...