Do i really need a heater control valve?
Thread Starter
Seasoned Member
Joined: Jan 2009
Posts: 443
Likes: 2
From: Prescott, AZ
Year: 1996
Model: Cherokee
Engine: 4.0L
Do i really need a heater control valve?
Is that thing really necessary? What would happen if I just put in a manual on/off valve, and opened it during winter and closed it during summer...or just leave it open all year round? Would it affect my ac cooling temperature?
CF Veteran
Joined: Nov 2009
Posts: 8,172
Likes: 17
From: The Republic of TEXAS
Year: 1998
Model: Cherokee
Engine: 4.0L HO
'97 up don't have a heater control valve. If the flow is shut off to the heater core, coolant sits there and stagnates, crud forms, so a plug could form as well. My guess is that's why the factory eliminated it on '97 up.
Thread Starter
Seasoned Member
Joined: Jan 2009
Posts: 443
Likes: 2
From: Prescott, AZ
Year: 1996
Model: Cherokee
Engine: 4.0L
For anyone interested I found this thread on naxja that answered all my questions:
www.naxja.org/forum/showthread.php?t=1026840
www.naxja.org/forum/showthread.php?t=1026840
Thread
Thread Starter
Forum
Replies
Last Post
CAT_Tech2
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
67
Sep 18, 2015 08:26 AM
DWStiles
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
10
Sep 18, 2015 06:10 AM
HappyTrails
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
6
Sep 14, 2015 08:54 PM
Azzy
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
0
Sep 8, 2015 10:49 PM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)