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.

My Jeep is Blowing COLD air!

Old 09-15-2009, 10:58 AM
  #1  
Newbie
Thread Starter
 
dayday's Avatar
 
Join Date: Dec 2008
Posts: 24
Likes: 0
Received 0 Likes on 0 Posts
Year: 2004
Model: Grand Cherokee
Engine: 4.7
Default My Jeep is Blowing COLD air!

My 2004 Jeep Grand Cherokee Limited is blowing COLD air when I turn on the HEATER. The car temp is at 208-210 max (normal I assume). How can I fix the heater and is it harmful for my engine?? Thnx!
Old 09-15-2009, 11:15 AM
  #2  
CF Veteran
 
ol"blue's Avatar
 
Join Date: Mar 2009
Location: Tenn. and Mich.
Posts: 28,068
Likes: 0
Received 6 Likes on 6 Posts
Year: 2004
Model: Grand Cherokee
Engine: 4.7L V8
Default

Read this. http://www.wjjeeps.com/hvac_sub_assembly.htm
And Welcome to CF.
Old 09-15-2009, 11:44 AM
  #3  
Seasoned Member
 
housew's Avatar
 
Join Date: Oct 2008
Location: southern maine
Posts: 466
Likes: 0
Received 0 Likes on 0 Posts
Year: 1999
Model: Cherokee
Engine: 4.0
Default

check your fluid level, if its so low that the water pump can't pump it, then it doesn't make it to the heater core or the radiator. your engine gets dangerously hot and you stay chilly.
Old 09-15-2009, 12:31 PM
  #4  
Senior Member
 
1987XJ's Avatar
 
Join Date: Nov 2008
Location: Oak Harbor, Wa
Posts: 510
Likes: 0
Received 0 Likes on 0 Posts
Year: 1987
Model: Cherokee
Engine: 4.0 Renix
Default

try replacing the thermostat

Originally Posted by dayday
My 2004 Jeep Grand Cherokee Limited is blowing COLD air when I turn on the HEATER. The car temp is at 208-210 max (normal I assume). How can I fix the heater and is it harmful for my engine?? Thnx!
Old 09-15-2009, 03:35 PM
  #5  
CF Veteran
 
mike albo's Avatar
 
Join Date: Mar 2009
Location: Loomis,California
Posts: 8,712
Likes: 0
Received 2 Likes on 2 Posts
Year: 1987
Model: Cherokee
Engine: 242 inline six
Default

also check your heater control valve,make sure its opening to let the water through.
Old 09-15-2009, 06:45 PM
  #6  
Senior Member
 
warrpath4x4's Avatar
 
Join Date: Feb 2009
Location: Prosser, WA
Posts: 522
Received 28 Likes on 25 Posts
Year: 1993
Model: Cherokee(XJ)
Engine: 4.0
Default

Heater control valve or heater core is so plugged its not flowing.

Lol may sound like I'm being a smart ***** but make sure you actually have heater hoses going to the heater core.

Did you have the rig last winter? Did it have heat?

Last edited by warrpath4x4; 09-15-2009 at 06:48 PM.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
bradleyheathhays
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
6
10-03-2015 09:51 PM
DWStiles
Modified XJ Cherokee Tech
25
10-02-2015 01:15 PM
Rotorhead
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
10
08-31-2015 12:41 PM
Jethro4days
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
18
08-25-2015 08:42 PM
Zerocyde
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
5
08-24-2015 10:56 AM

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

Thread Tools
Search this Thread
Quick Reply: My Jeep is Blowing COLD air!



All times are GMT -5. The time now is 07:13 AM.