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Feb 5, 2015 | 12:33 PM

thatguy2000xj

Thread Starter

Junior Member

Joined: Jul 2014

Posts: 39

Likes: 0

From: Auburn, Washington

Year: 2000

Model: Cherokee

Engine: 4.0

heater?

so my heater motor only works on high does any one know why or how to fix it

Feb 5, 2015 | 12:35 PM

djb383

CF Veteran

Joined: Nov 2009

Posts: 8,172

Likes: 17

From: The Republic of TEXAS

Year: 1998

Model: Cherokee

Engine: 4.0L HO

Fan speed switch has gone bad?.....needs to be replaced?

Feb 5, 2015 | 12:55 PM

scaifenater

Newbie

Joined: Jan 2015

Posts: 28

Likes: 0

Try flushing it out.

Feb 5, 2015 | 01:19 PM

djb383

CF Veteran

Joined: Nov 2009

Posts: 8,172

Likes: 17

From: The Republic of TEXAS

Year: 1998

Model: Cherokee

Engine: 4.0L HO

Flush the heater motor????????

Feb 5, 2015 | 02:02 PM

scaifenater

Newbie

Joined: Jan 2015

Posts: 28

Likes: 0

Sorry, flush the heater core. But that would only be if it's blowing air but not hot air. I may have misunderstood your problem.

Feb 5, 2015 | 02:03 PM

CCKen

CF Veteran

Joined: Aug 2010

Posts: 8,357

Likes: 103

From: Canton, MI

Year: 1999

Model: Cherokee

Engine: 4.0

Quote:

Originally Posted by thatguy2000xj

so my heater motor only works on high does any one know why or how to fix it

Your motor Resistor Block is shot and needs to be replaced.

Feb 5, 2015 | 02:12 PM

drhoward1988

CF Veteran

Joined: Nov 2013

Posts: 1,347

Likes: 0

From: Wetumpka, AL

Year: 1987

Model: Cherokee

Engine: 4.0

Quote:

Originally Posted by djb383

Flush the heater motor????????

Lol good laugh for the day. X2^^^^ from Ken. Same problem with mine. Replaced the resistor and everything is peachy now. Used one from autozone..works fine.

heater?

heater?

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