1996 Caravan Blower motor/resistor failure

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  #1  
Old 03-23-07, 06:23 PM
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Unhappy 1996 Caravan Blower motor/resistor failure

Hello everyone first I'd like to say I have found this site so very helpfull and I am truley thankfull that all of this information is available to us!

Second,....
I have found out that there are 4 things that usually cause an AC/Heater Blower Motor to misbehave or stop working altogether...
1. A BLOWN 40Amp fuse,
2. A BURNED-out Resistor Block,
3. A BAD Blower Motor Relay, AND/OR
4. A WORN-out Blower Motor.

Now the link to where I found this info is http://www.dodgeforum.com/m_387831/mpage_1/key_/tm.htm

and the first question it asks is;
Does your AC/Heater Blower Motor work in high-speed only or possibly some other speed as well, but NOT all speeds?

My answer is; Before it completely stopped working yes it only worked on high.

Question 2: Does your AC/Heater Blower Motor NOT work AT ALL?

My answer; No it doesn't, but before it quit what happened was,.....

for about 3 months it did that sqeaky whining noise,... then it progressed to only working on high. Then I would get gushes of water on my passenger side floor board especially when it rained. It continued to slowly get worse to the point where the heater would only work on the high setting.
My van is normally parked under a pine tree so I thought maybe the pine needles had clogged the little rubber drain hose, so my husband took the shopvac and vacuumed out the pine needles that had accumulated in the grill where the wipers are there on the passenger side. After doing that we haven't had the water leak from that area anymore but my van overheated.

So we went through the whole process of flushing the system completely and replacing the thermostat and thermostat gasket. So far that has seemed to solve the overheating problem, however now we do get a small amount of air coming from the heater mostly when we are driving or I step on the accelorator. The control panel does work fine I can hear the flaps open and shut when switching from defrost to vent etc... and the temperature does change from hot to cold, Even with the A/C on it doesn't force the air. My initial thought was to replace the resistor because I know that usually when the heater only runs on high it's because the resistor fails, but I now am wondering if the blower motor is blown?

I guess my question is;

If the control panel is working, temperature changes, and we do get a small amount of heat/cool air does this mean the blower motor itself has gone bad?

Should I replace both the blower motor and the resistor?

Thanks in advance.
 

Last edited by love2learn; 03-23-07 at 06:24 PM. Reason: notification change
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Old 03-23-07, 07:30 PM
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Yes, I would replace the blower motor and make sure you fix the leaks. If the fan housing cracked in anyway, it might have allowed moisture and condensation to form and leak.
 
  #3  
Old 03-25-07, 10:03 PM
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Smile Thank you

Great, Thanks for the input Mark I will try replacing the blower motor and I will post the results as soon as I am done! Have a great week :-)
 
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