Heat/AC doesnt blow out dash
This is on an 02 TJ not my 03 if that makes a difference.
The Heat/AC doesn't blow out of the dash vents. It will blow out just the defrost vents, just out the floor vents, or will blow out both the defrost and floor vents together. The only part that doesn't work is the dash vents.
Here's what I've checked:
1-The knob isn't cracked. It works everything else and I pulled it off to check it. Still good.
2-The switch unit behind the knob is good. I swapped it out for one in my 03 and same result. Colored vacuum lines are all connected behind dash.
3-The vacuum hose on the intake is connected and the rubber boot is still good. The "t" connections under the hood seem to all be connected still.
4-The vacuum hose under the battery tray is connected and the rubber boot is still good. When I pulled the hose off, it sounded like it released air from the vacuum reservoir (or sucked into the system, just going by sound not airflow), I would assume that the system is holding the vacuum then. The colored hoses connected to the switch behind the knob do the same.
5-The arm on the actuator behind the steering wheel operates when the knob is turned and rotates. I doesn't appear broken or loose.
I'm going crazy trying to figure it out. Every other thread I've seen fixed the problem with the above steps but not so much with mine. Any other ideas?
On a separate note, I went to the dealership to get a quote on new blower motor resistors for my 03, this 02, and an 05 cherokee. The parts guy said $37 for the 05. $25 for the both 03 and 02, but for the 02 he said the whole blower motor had to be changed with it for $195. Why is that? I found all 3 resistors online for $40 shipped from RockAuto but why would the blower motor have to be changed with it on the 02? They just went by the computer, not looking at the jeep. I don't get it.
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