Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here XJ (84-01)
All OEM related XJ specific tech. Examples, no start, general maintenance or anything that's stock.

help with heater problems please

Thread Tools
 
Search this Thread
 
Old 01-23-2012, 08:00 PM
  #1  
Newbie
Thread Starter
 
Turkey Hunter's Avatar
 
Join Date: Oct 2010
Location: Lebanon Virginia
Posts: 27
Likes: 0
Received 1 Like on 1 Post
Year: 1993
Model: Cherokee
Engine: 4.0
Default help with heater problems please

I don't have any power going to the blower motor. I have ground but no power. I don't think its the resistor because it doesn't work on high either. In my experience the high setting always gets power straight the battery correct? I checked the fuses under the driver side dash and they all checked out ok. Is there any fuses anywhere else other than the one under the hood?
Old 01-23-2012, 08:21 PM
  #2  
CF Veteran
 
Firestorm500's Avatar
 
Join Date: Apr 2009
Posts: 4,734
Likes: 0
Received 9 Likes on 9 Posts
Year: 2015, 2012
Model: Grand Cherokee (WK2)
Engine: 3.6L
Default

Could be in the climate control panel. Also, if you directly wire the hot side of the blower wire to the battery, does the blower run?

If not, then suspect blower motor.
Old 01-23-2012, 08:30 PM
  #3  
Newbie
Thread Starter
 
Turkey Hunter's Avatar
 
Join Date: Oct 2010
Location: Lebanon Virginia
Posts: 27
Likes: 0
Received 1 Like on 1 Post
Year: 1993
Model: Cherokee
Engine: 4.0
Default

There isn't any power at the harness that plugs into the the blower. I'm planning on testing the swithc tonight. So are those the only fuses or have I over looked some?
Old 01-24-2012, 07:57 AM
  #4  
Newbie
Thread Starter
 
Turkey Hunter's Avatar
 
Join Date: Oct 2010
Location: Lebanon Virginia
Posts: 27
Likes: 0
Received 1 Like on 1 Post
Year: 1993
Model: Cherokee
Engine: 4.0
Default

Is there a relay for the heater motor?
Old 01-24-2012, 08:23 AM
  #5  
CF Veteran
 
tjwalker's Avatar
 
Join Date: Nov 2010
Location: In the middle of Minnesota!
Posts: 5,805
Received 99 Likes on 88 Posts
Year: 1999
Model: Cherokee
Engine: 4.0
Default

Don't believe there is a relay, but I think there could be a fuse for the blower motor circuit both in the kick panel AND in the power distribution center; that's the way I remember it on my 99.

And if fuses check out, the switch itself is certainly primary suspect. See if you have power before the switch.
Old 01-24-2012, 05:50 PM
  #6  
kjc
CF Veteran
 
kjc's Avatar
 
Join Date: Aug 2011
Location: Blue Springs, MO
Posts: 1,031
Likes: 0
Received 2 Likes on 2 Posts
Year: 1993
Model: Grand Cherokee
Engine: 4.0L Laredo
Default

Originally Posted by Turkey Hunter
I don't have any power going to the blower motor. I have ground but no power. I don't think its the resistor because it doesn't work on high either. In my experience the high setting always gets power straight the battery correct? I checked the fuses under the driver side dash and they all checked out ok. Is there any fuses anywhere else other than the one under the hood?
My '93 has fuses on the passenger side next to the glovebox. I don't know if there's a blower motor fuse in there or not. There's no diagram on the cover.
Old 01-24-2012, 06:40 PM
  #7  
Seasoned Member
 
XJ JoeyD's Avatar
 
Join Date: Sep 2010
Location: Parma Ohio
Posts: 331
Likes: 0
Received 0 Likes on 0 Posts
Year: 1998
Model: Cherokee
Engine: 4.0
Default

My 91 had a fuse under the drivers side kick panel area for the blower motor. Also if your thinking it's the switch they do like melting behind the dash for some reason
Old 01-24-2012, 09:18 PM
  #8  
Newbie
Thread Starter
 
Turkey Hunter's Avatar
 
Join Date: Oct 2010
Location: Lebanon Virginia
Posts: 27
Likes: 0
Received 1 Like on 1 Post
Year: 1993
Model: Cherokee
Engine: 4.0
Default

Thanks guys. Its not my main veheicle so I haven't been in a big hurry of fixing it. I work 60 hours a week so its hard telling when ill have a chance to pull the switch out but ill post the answer when I get it fixed!
Old 01-26-2012, 09:00 PM
  #9  
Newbie
Thread Starter
 
Turkey Hunter's Avatar
 
Join Date: Oct 2010
Location: Lebanon Virginia
Posts: 27
Likes: 0
Received 1 Like on 1 Post
Year: 1993
Model: Cherokee
Engine: 4.0
Default

There isn't power at the switch either. All the fuses are good at the box under the hood as well. Does anybody have a wiring diagram that could tell me which wire is the hot wire going to the switch? If so ill just splice a new wire in to it. Any other ideas?
Old 01-26-2012, 11:04 PM
  #10  
CF Veteran
 
Firestorm500's Avatar
 
Join Date: Apr 2009
Posts: 4,734
Likes: 0
Received 9 Likes on 9 Posts
Year: 2015, 2012
Model: Grand Cherokee (WK2)
Engine: 3.6L
Default

You probably need to buy a shop manual for your Jeep.
Old 01-27-2012, 06:17 AM
  #11  
Seasoned Member
 
XJ JoeyD's Avatar
 
Join Date: Sep 2010
Location: Parma Ohio
Posts: 331
Likes: 0
Received 0 Likes on 0 Posts
Year: 1998
Model: Cherokee
Engine: 4.0
Default

Originally Posted by Turkey Hunter
There isn't power at the switch either. All the fuses are good at the box under the hood as well. Does anybody have a wiring diagram that could tell me which wire is the hot wire going to the switch? If so ill just splice a new wire in to it. Any other ideas?
I have a 98 shop manual with the diagrams... Not sure if that would help you or not, I don't know what year your jeep is
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
shelby5041
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
39
11-07-2015 01:22 AM
roofdog
Introductions
6
09-10-2015 12:31 PM
Soilman
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
0
09-06-2015 07:51 AM
lozo63
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
2
09-03-2015 05:25 PM
Jeepy11
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
2
09-03-2015 09:32 AM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


Quick Reply: help with heater problems please



All times are GMT -5. The time now is 12:03 PM.