Blower Motor Failure: The Life and Death of My HVAC System
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Joined: Oct 2009
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Blower Motor Failure: The Life and Death of My HVAC System
Jump to the end if you are a 'get to the point' kind of person--
I purchased a 2002 Rodeo esporte' roughly 6 months ago and have, for the most part, loved the vehicle as if it were my own (I took out a loan-it's pretty much the banks). Mechanically, I've had no issues. Electrically, it has been a major pain in my ***. It only has 70,000 miles on it and the six disk changer, well, does not change ONE disk, let alone 6. Not the issue I'm inquiring into- let's get to the point.
At first, the blower motor would spin on command, blowing ice cold air onto my red hot face in the 100+ Arizona desert temperatures. A few months into my purchase, the motor began to NOT turn on upon start up of the vehicle-- no matter the switch setting (1,2,3, or 4). After a minute of driving, the motor would kick on and blow any temperature I wanted, either hot or cold.
Once on, the motor would NEVER turn off on its own.
The problem has only become much worse. Now, the motor NEVER turns on. I take that back-- I think the other day it did a few minutes into a trip but has yet to make an appearance since.
I pulled the power wire to the blower motor and there is voltage getting TO the motor, and I've been looking for a blower motor resistor I've been reading about on this forum and I can't seem to find one. I've done some research on online part stores and the description next to all of the Rodeo blower motor resistors says 'without AC', so I presume that, since I have AC, I do not have a blower motor resistor? Is my problem my blower motor? All evidence leads me to believe that my blower motor needs replaced, but I am weak and unable to make my own decisions and need someone to reinforce my belief. Anyone?
Cliff Notes:
-Blower motor use to work fine, one day it began to NOT turn on (but would never turn off unless I turned it off)
-Problem became progressively worse, until the blower motor decided to never turn on again
-Power IS getting to the blower motor
I purchased a 2002 Rodeo esporte' roughly 6 months ago and have, for the most part, loved the vehicle as if it were my own (I took out a loan-it's pretty much the banks). Mechanically, I've had no issues. Electrically, it has been a major pain in my ***. It only has 70,000 miles on it and the six disk changer, well, does not change ONE disk, let alone 6. Not the issue I'm inquiring into- let's get to the point.
At first, the blower motor would spin on command, blowing ice cold air onto my red hot face in the 100+ Arizona desert temperatures. A few months into my purchase, the motor began to NOT turn on upon start up of the vehicle-- no matter the switch setting (1,2,3, or 4). After a minute of driving, the motor would kick on and blow any temperature I wanted, either hot or cold.
Once on, the motor would NEVER turn off on its own.
The problem has only become much worse. Now, the motor NEVER turns on. I take that back-- I think the other day it did a few minutes into a trip but has yet to make an appearance since.
I pulled the power wire to the blower motor and there is voltage getting TO the motor, and I've been looking for a blower motor resistor I've been reading about on this forum and I can't seem to find one. I've done some research on online part stores and the description next to all of the Rodeo blower motor resistors says 'without AC', so I presume that, since I have AC, I do not have a blower motor resistor? Is my problem my blower motor? All evidence leads me to believe that my blower motor needs replaced, but I am weak and unable to make my own decisions and need someone to reinforce my belief. Anyone?
Cliff Notes:
-Blower motor use to work fine, one day it began to NOT turn on (but would never turn off unless I turned it off)
-Problem became progressively worse, until the blower motor decided to never turn on again
-Power IS getting to the blower motor
Member
Joined: Nov 2008
Posts: 46
From: United States
find a electrical wiring diagram and go from there;
there is a resistor block between the motor and the fan spped switch,
the common from the fan speed switch goes to ground!
test fan motor by applying 12 v power to it and grounding the other connection, if it runs then the problem is resistor/switch, wiring related.
good luck
there is a resistor block between the motor and the fan spped switch,
the common from the fan speed switch goes to ground!
test fan motor by applying 12 v power to it and grounding the other connection, if it runs then the problem is resistor/switch, wiring related.
good luck
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