Re: '96 T&C front AC blower not working properly


"Fieronut" <fieronut@xxxxxxx> wrote in message
news:63090fa341e567785849c6b3440c4264@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> A few months ago, I wrote about a problem I had with the front AC/Heater
> blower on my '96 LXi. I never actually fixed it, just ran a hot wire to
> the blower motor and used it that way. The dealer had told me that it
> needed a relay but changed that and did nothing. (Very hard to GET to the
> relay, by the way!) I had gotten some advice from one of the NG member
> concerning a new resistor block and some wiring that goes with it. When I
> went to the dealer to get the block $15, I was told I didn't need the
> wiring, since the block had not changed. When I got home, noticed that
> the plug that goes into the block seemed discolored (from heat, I thot) at
> the tan/white wire. I cleaned the connectors, then checked for current at
> the plug. I had the ignition turned on and tried EVERY setting on the
> HVAC panel. There was NOTHING from ANY of the wires, no matter which one
> I checked. I changed the motor (it had begun to rattle from running on
> high all the time) and found that it would run WITHOUT the resistor block
> connected to anything...in other words, I removed the plug that plugs into
> the resistor and the motor still ran, but only on high. And when I
plugged
> it in, it still ran but only on high. Obviously, there is a problem
> SOMEWHERE but since I've changed the relay, resistor block and motor, what
> else could it be? Looking at the schematic on page 8W-42-5 of the BIIIG
> manual, it appears that the relay must be working otherwise the motor
> wouldn't run at all. (I've disconnected the wire I ran directly to the
> motor.) But why doesn't it run on any other speed? Is it the HVAC panel?
> SOMETHING else? As you can tell, I'm mystified and winter is coming
> on...don't want to have to replace anything when it's below zero. HELP!!!
> tia...
>
> John
>
Hmm, confusing... If you have 12 volts at the green wire at the blower motor
everyhting is good to that point, test out the black wire coming out of the
blower motor key on (ground) and see if the test lite is lites. If it does,
you are missing a ground, more then likely that ground is open in the
control head.

Glenn Beasley
Chrysler Tech


.

Relevant Pages

  • Re: 96 T&C front AC blower not working properly
    ... just ran a hot wire to ... >> concerning a new resistor block and some wiring that goes with it. ... >> the plug that goes into the block seemed discolored ... I changed the motor (it had begun to rattle from running on ...
    (rec.autos.makers.chrysler)
  • Re: Update: Failed HVAC Fan on 2001 DeVille
    ... >or both of those models and their GM counterparts use a blower motor ... >which has an integrated power module. ... >wire is a solid ground, and the third wire is aproximately 3-6 ...
    (rec.autos.tech)
  • Re: 96 T&C front AC blower not working properly
    ... If you have 12 volts at the green wire at the blower ... motor everyhting is good to that point, test out the black wire coming out ... of the blower motor key on and see if the test lite is lites. ...
    (rec.autos.makers.chrysler)
  • Re: Update: Failed HVAC Fan on 2001 DeVille
    ... or both of those models and their GM counterparts use a blower motor ... which has an integrated power module. ... While the blower is currently inop, check that one wire has 12v, one ...
    (rec.autos.tech)
  • Re: Hot water to forced air
    ... so that it burns it out the blower motor. ... restricts the air-low to the point the motor heat is not removed.. ... and it uses more power to push the air harder. ... Or speeds up if it is a universal or "vacuum cleaner" type motor, ...
    (alt.home.repair)