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.

cooling system not heating as well

Thread Tools
 
Search this Thread
 
Old Mar 2, 2012 | 01:44 AM
  #1  
oneal916's Avatar
Thread Starter
Seasoned Member
 
Joined: Mar 2010
Posts: 290
Likes: 0
From: steilacoom washington
Year: 1990
Model: Cherokee
Engine: striaght 6 4.0l
Default cooling system not heating as well

other night noticed running about 100 to 150 degrees thought to myself oh good . then it happened the next day again weird not getting warm enough to defrost the inside of my windows and puts out warm heat ah any suggestions
Ive replace t state water pump and have flushed the system before summer could it be clogged up somewhere
Reply
Old Mar 2, 2012 | 05:33 AM
  #2  
cruiser54's Avatar
::CF Moderator::
 
Joined: Aug 2011
Posts: 43,971
Likes: 1,578
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Default

More than likely your new stat is stuck open or opening way too soon. It should be a 195* stat in there. What temp did you put in?
Reply
Old Mar 2, 2012 | 06:59 PM
  #3  
oneal916's Avatar
Thread Starter
Seasoned Member
 
Joined: Mar 2010
Posts: 290
Likes: 0
From: steilacoom washington
Year: 1990
Model: Cherokee
Engine: striaght 6 4.0l
Default

Went from a 180 195 and now210
Reply
Old Mar 2, 2012 | 07:00 PM
  #4  
oneal916's Avatar
Thread Starter
Seasoned Member
 
Joined: Mar 2010
Posts: 290
Likes: 0
From: steilacoom washington
Year: 1990
Model: Cherokee
Engine: striaght 6 4.0l
Default

I think its a195 now
Reply
Old Mar 2, 2012 | 07:09 PM
  #5  
freegdr's Avatar
CF Veteran
 
Joined: Mar 2010
Posts: 47,923
Likes: 38
From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
Default

air in system crappy renix closed system downfall
Reply
Old Mar 2, 2012 | 07:27 PM
  #6  
stev-o's Avatar
CF Veteran
 
Joined: Nov 2011
Posts: 1,290
Likes: 0
From: phoenix az
Year: 1989
Model: Cherokee
Engine: 4.0l 6 cylinder
Default

Sounds like your tstat is stuck open
Reply
Old Mar 3, 2012 | 03:08 AM
  #7  
oneal916's Avatar
Thread Starter
Seasoned Member
 
Joined: Mar 2010
Posts: 290
Likes: 0
From: steilacoom washington
Year: 1990
Model: Cherokee
Engine: striaght 6 4.0l
Default

As of right now I'm flushing my system and running predator cleaner through it
Reply
Old Mar 3, 2012 | 02:55 PM
  #8  
naturist's Avatar
Junior Member
 
Joined: Aug 2011
Posts: 83
Likes: 0
From: Grants Pass Ore
Year: 88
Model: Cherokee
Engine: 4.0 Renix
Default

let me know what fixes it plz im having the same problem. And Ive replaced the whole cooling system and burped it like should be for a renix.
Reply
Old Mar 3, 2012 | 02:57 PM
  #9  
stev-o's Avatar
CF Veteran
 
Joined: Nov 2011
Posts: 1,290
Likes: 0
From: phoenix az
Year: 1989
Model: Cherokee
Engine: 4.0l 6 cylinder
Default

Originally Posted by naturist
let me know what fixes it plz im having the same problem. And Ive replaced the whole cooling system and burped it like should be for a renix.
And it just over heatz
Reply
Old Mar 3, 2012 | 02:58 PM
  #10  
naturist's Avatar
Junior Member
 
Joined: Aug 2011
Posts: 83
Likes: 0
From: Grants Pass Ore
Year: 88
Model: Cherokee
Engine: 4.0 Renix
Default

nope never gets over 170
Reply
Old Mar 3, 2012 | 03:01 PM
  #11  
stev-o's Avatar
CF Veteran
 
Joined: Nov 2011
Posts: 1,290
Likes: 0
From: phoenix az
Year: 1989
Model: Cherokee
Engine: 4.0l 6 cylinder
Default

Originally Posted by naturist
nope never gets over 170
Oh wow thats 40 degrees low
Reply
Old Mar 3, 2012 | 03:04 PM
  #12  
naturist's Avatar
Junior Member
 
Joined: Aug 2011
Posts: 83
Likes: 0
From: Grants Pass Ore
Year: 88
Model: Cherokee
Engine: 4.0 Renix
Default

yep the fan never kicks on and no heat either
Reply
Old Mar 3, 2012 | 03:06 PM
  #13  
stev-o's Avatar
CF Veteran
 
Joined: Nov 2011
Posts: 1,290
Likes: 0
From: phoenix az
Year: 1989
Model: Cherokee
Engine: 4.0l 6 cylinder
Default

Originally Posted by naturist
yep the fan never kicks on and no heat either
Wow thats odd
Reply
Old Mar 3, 2012 | 03:09 PM
  #14  
naturist's Avatar
Junior Member
 
Joined: Aug 2011
Posts: 83
Likes: 0
From: Grants Pass Ore
Year: 88
Model: Cherokee
Engine: 4.0 Renix
Default

yep I cant figure it out.... but if it wasnt for those weird gremlins it woudnt be a jeep lol
Reply
Old Mar 3, 2012 | 03:12 PM
  #15  
lukeincolorado's Avatar
Seasoned Member
 
Joined: Jan 2011
Posts: 266
Likes: 0
From: Canon City CO
Year: 1989
Model: Cherokee
Engine: Renix I6 4.0!
Default

just change your t stat
Reply



All times are GMT -5. The time now is 06:21 PM.