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.

i'm cold

Thread Tools
 
Search this Thread
 
Old Oct 29, 2008 | 06:44 PM
  #1  
mike's Avatar
Thread Starter
Seasoned Member
 
Joined: Aug 2008
Posts: 440
Likes: 0
From: Bowling Green, KY
Year: 1989
Model: Cherokee
Engine: 4.0
Unhappy i'm cold

heat blows warm but only if on the gas. is there an easy way to clean out the heater coil?
Reply
Old Oct 29, 2008 | 06:50 PM
  #2  
BlueXJ's Avatar
Renix Super Guru
 
Joined: Mar 2008
Posts: 24,653
Likes: 19
From: In yourz postez fissin jurr spelinzs
Year: 1990XJ/1989MJ
Model: Comanche
Engine: 4.0L Renix
Default

Just a GENTLE flush with a garden hose. Don't get aggressive or you will have leaks afterward.
Reply
Old Oct 29, 2008 | 06:58 PM
  #3  
COSXJFAN's Avatar
Do you hear banjos?
Premium Member
15 Year Member
 
Joined: Apr 2008
Posts: 9,644
Likes: 6
Model: Cherokee
Default

Sounds like it could be a vacuum leak. Heater control valve, flap in the vent system?? May want to check that too!! Good luck!!
Reply
Old Oct 29, 2008 | 07:10 PM
  #4  
BlueXJ's Avatar
Renix Super Guru
 
Joined: Mar 2008
Posts: 24,653
Likes: 19
From: In yourz postez fissin jurr spelinzs
Year: 1990XJ/1989MJ
Model: Comanche
Engine: 4.0L Renix
Default

Originally Posted by COSXJFAN
Sounds like it could be a vacuum leak. Heater control valve, flap in the vent system?? May want to check that too!! Good luck!!
Thanks COS I was just responding to the heater core flush. You are probably right the vacuum hose is prolly off the little diverter motor.
Reply
Old Oct 30, 2008 | 07:10 AM
  #5  
120mm's Avatar
Member
 
Joined: Sep 2008
Posts: 149
Likes: 0
From: Afghanistan
Year: 95
Model: Cherokee
Engine: 4.0
Default

And that little diverter valve is stupid cheap, at $20, and takes about 5 minutes to replace.

First check the vacuum hose, then, if that don't work, try the valve.
Reply
Old Oct 30, 2008 | 07:35 AM
  #6  
BlueXJ's Avatar
Renix Super Guru
 
Joined: Mar 2008
Posts: 24,653
Likes: 19
From: In yourz postez fissin jurr spelinzs
Year: 1990XJ/1989MJ
Model: Comanche
Engine: 4.0L Renix
Default

Let us know what you find Mike.
Reply
Old Oct 30, 2008 | 08:50 PM
  #7  
mike's Avatar
Thread Starter
Seasoned Member
 
Joined: Aug 2008
Posts: 440
Likes: 0
From: Bowling Green, KY
Year: 1989
Model: Cherokee
Engine: 4.0
Default

will do guys. thanks for the input
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Paco182
Jeep Builds
30
Jul 1, 2025 04:38 PM
pTacRP
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
14
Aug 1, 2021 12:35 PM
99xjBill
Introductions
6
Oct 8, 2015 09:59 AM
LittleRed94
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
5
Oct 6, 2015 08:09 PM
zumer715
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
10
Oct 3, 2015 07:07 PM

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



All times are GMT -5. The time now is 05:22 AM.