Fan making noise and smell of something getting hot, no cool air
Change it mabe the fan stuck some time end the rust stuck the mouvement on the shaft fan
I decode that as heat works, fan works perfect and blows fast
on high.
and that A/C is dead. right?
step 2 is , does the compressor shaft spin fast.
not the pulley it always does, running.
that is 1st. if you respond ill do step 3,
the FSM Covers all this , read it.
SOURCE: 2004 liberty - air conditioner
sounds like the reiculation door is not moving, listen for a change in sound when you
move the knob from fresh air to recirculate. if no change, you will need to check the recirc, actuator or door inside the blower
case.
SOURCE: A/c Heat Fan in 1995 Jeep Cherokee doesnt work. I
there is a blower motor resistor that cuts the voltage for the different fan speeds. this is most likely the culprit. check autozone.com, you can get access to location and wiring diagrams to be more familiar with it. you have to register and it's free. the switch or wiring might also be bad, when in the high position, the switch effectively bypasses any resistor. although the voltage still runs through the assembley. a repair manual is you best option
SOURCE: I have a 1995 jeep cherokee sport 4wd 4.0L with
Never just replace any item because someone suggested it may have failed. Before replacing anything, you need to check each item for any signs it's bad. In addition to what I mentioned, the blower motor itself can also cause a problem if it is worn out and is drawing too much amperage to operate. If the blower makes any noise or the wiring becomes warmer than it should be after replacing any damaged parts, look at the motor. Bad motor ground can cause problems as well so check that too.
SOURCE: 04 Jeep Liberty----3.7L---- cooling fans
Try doing a resistance check on the motor itself. You'll have to be patient and slow but hook your meter up to both leads and slowly spin the fan and watch for a dead spot in the fan. I'm working off of an 03 wiring diagram so bare with me if the colors don't match. Here's what I have:
- Dark Blue/Pink should be hot all the time, it comes from Fuse 2 (40amp) in the PDC
- Light Green is the radiator fan relay control (The pcm provides a ground on this circuit which then energizes the relay)
- Yellow- Radiator fan output, should be battery voltage when the relay is energized
- Black/Orange is the ground for the radiator fan as well as the fan relay.
If you have an amp meter that can handle a +/- 40AMP flow then I would also recomend checking the current flow through the fan both while it's running as well as at initial start-up (It takes more current to get it move than it does to keep it moving).
Also, I looked over the 03 and 04 wiring diagrams for the radiator cooling fan and both show the ground for the fan being on a Black/Orange wire at the fan. The power for the 03 is provided on a single wire that is yellow. The 04 year model gets power from the low speed fan relay on a Dark Green wire and the high speed fan relay provides power on a Yellow wire.
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