Air not heating up, as well as other climate control problems

[jce929]

2002 Jeep TJ SE (without a/c)

I just replaced my starter, ignition switch, and ignition switch actuator, and when I started my jeep back up, the climate controls seemed off. It took a bit longer than usual to start blowing, and when I tried to change the mode, the switch felt a bit wonky and would make small air blowoff noises when I selected a new mode. On top of that, the air won’t even heat up even after 20 minutes of running. This is the first issue I’ve had with any climate problems other than replacing a vacuum belt a few months back. Any ideas?

 

[pagrey]

Sounds like you may have dislodged one of the climate control vacuum lines when you were working on the ignition switch. I'd look around under the dash as you change the vent settings with the engine running and see if you can find a broken or disconnected line.