88YJ Heater Blower Motor Problems
 

My blower only works on high. The other speeds don't work. I have
been told it is the blower motor resistor (pack). Mine only has two
coils on it and no other resistors. Is this the problem still? The
coils look fine.

Re: 88YJ Heater Blower Motor Problems
 

That or it's plug is bad. The two coils operate the two lower speeds.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

rjmax wrote:
>
> My blower only works on high. The other speeds don't work. I have
> been told it is the blower motor resistor (pack). Mine only has two
> coils on it and no other resistors. Is this the problem still? The
> coils look fine.

Re: 88YJ Heater Blower Motor Problems
 

That or it's plug is bad. The two coils operate the two lower speeds.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

rjmax wrote:
>
> My blower only works on high. The other speeds don't work. I have
> been told it is the blower motor resistor (pack). Mine only has two
> coils on it and no other resistors. Is this the problem still? The
> coils look fine.

Re: 88YJ Heater Blower Motor Problems
 

That or it's plug is bad. The two coils operate the two lower speeds.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

rjmax wrote:
>
> My blower only works on high. The other speeds don't work. I have
> been told it is the blower motor resistor (pack). Mine only has two
> coils on it and no other resistors. Is this the problem still? The
> coils look fine.

Re: 88YJ Heater Blower Motor Problems
 

Coils, plug, wires, or switch. The switch sends 12v directly to the fan
in high, through one coil in medium, and both coils in low. If you pull
the plug off, you should see 12 volts to ground on tan when the switch
is in medium, 12 volts to ground on the lt green wire in lo, and 12
volts to ground on the white wire in high. resistance of each coil is
..85 ohm.

rjmax wrote:

> My blower only works on high. The other speeds don't work. I have
> been told it is the blower motor resistor (pack). Mine only has two
> coils on it and no other resistors. Is this the problem still? The
> coils look fine.
>

Re: 88YJ Heater Blower Motor Problems
 

Coils, plug, wires, or switch. The switch sends 12v directly to the fan
in high, through one coil in medium, and both coils in low. If you pull
the plug off, you should see 12 volts to ground on tan when the switch
is in medium, 12 volts to ground on the lt green wire in lo, and 12
volts to ground on the white wire in high. resistance of each coil is
..85 ohm.

rjmax wrote:

> My blower only works on high. The other speeds don't work. I have
> been told it is the blower motor resistor (pack). Mine only has two
> coils on it and no other resistors. Is this the problem still? The
> coils look fine.
>

Re: 88YJ Heater Blower Motor Problems
 

Coils, plug, wires, or switch. The switch sends 12v directly to the fan
in high, through one coil in medium, and both coils in low. If you pull
the plug off, you should see 12 volts to ground on tan when the switch
is in medium, 12 volts to ground on the lt green wire in lo, and 12
volts to ground on the white wire in high. resistance of each coil is
..85 ohm.

rjmax wrote:

> My blower only works on high. The other speeds don't work. I have
> been told it is the blower motor resistor (pack). Mine only has two
> coils on it and no other resistors. Is this the problem still? The
> coils look fine.
>

Re: 88YJ Heater Blower Motor Problems
 

rjmax wrote:
> My blower only works on high. The other speeds don't work. I have
> been told it is the blower motor resistor (pack). Mine only has two
> coils on it and no other resistors. Is this the problem still? The
> coils look fine.

Those coils are the resistors. If you have a meter, measure across them
and check for an open. They heat up when they work and can simply crack.

--
DougW

Re: 88YJ Heater Blower Motor Problems
 

rjmax wrote:
> My blower only works on high. The other speeds don't work. I have
> been told it is the blower motor resistor (pack). Mine only has two
> coils on it and no other resistors. Is this the problem still? The
> coils look fine.

Those coils are the resistors. If you have a meter, measure across them
and check for an open. They heat up when they work and can simply crack.

--
DougW

Re: 88YJ Heater Blower Motor Problems
 

rjmax wrote:
> My blower only works on high. The other speeds don't work. I have
> been told it is the blower motor resistor (pack). Mine only has two
> coils on it and no other resistors. Is this the problem still? The
> coils look fine.

Those coils are the resistors. If you have a meter, measure across them
and check for an open. They heat up when they work and can simply crack.

--
DougW