Cottontail
Three-De Off-Road
- Location
- Nashville, TN
The new to me XJ I just picked up (2000 model) doesn't blow the HVAC at any speed or on any setting. I put in a new blower motor resistor, just to rule that out. I was pretty sure that it wasn't that, as research told me that a bad resistor would still blow on #4. I did pull the knob plate off the dash and all the vacuum lines look fine to the center indicator knob, and there are no "burnt" wires leading to any of the other knob plugs (particularly the blower setting knob.
Before I start tearing things apart - it has to be either the switch or the blower motor itself - what tests can I do, and how would I do it to see if I can isolate the issue? I really don't understand wiring and the electrical part of repair.
I saw one post on the internet that said it could be a vacuum leak at the ball behind the pax side bumper, but I was under the impression that was a cruise control vacuum canister.
Before I start tearing things apart - it has to be either the switch or the blower motor itself - what tests can I do, and how would I do it to see if I can isolate the issue? I really don't understand wiring and the electrical part of repair.
I saw one post on the internet that said it could be a vacuum leak at the ball behind the pax side bumper, but I was under the impression that was a cruise control vacuum canister.