Will Deleting HCV Increase Risk of Heater Core Failure?
02-22-2018, 08:15 PM
#1
Junior Member
Thread Starter
Join Date: Aug 2016
Location: Santa Clara, CA
Posts: 68
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1996
Model: Cherokee
Will Deleting HCV Increase Risk of Heater Core Failure?
Hey guys,
Title says it all. Thinking about deleting the stupid, plastic heater control valve 'cause the thing leaks and is getting worse. Aside from laziness, the other reason I have not done this is because I am wary of heater core failure. I NEVER use the heat setting, and hearing the stories of coolant vapor in the cab, along with knowing the trouble it is to replace the heater core, I want to avoid these things.
As I understand it, deleting the HCV will allow coolant to flow through the heater core all the time. I have always assumed this does not occur when the blower is on the "vent" setting, which I use exclusively.
Title says it all. Thinking about deleting the stupid, plastic heater control valve 'cause the thing leaks and is getting worse. Aside from laziness, the other reason I have not done this is because I am wary of heater core failure. I NEVER use the heat setting, and hearing the stories of coolant vapor in the cab, along with knowing the trouble it is to replace the heater core, I want to avoid these things.
As I understand it, deleting the HCV will allow coolant to flow through the heater core all the time. I have always assumed this does not occur when the blower is on the "vent" setting, which I use exclusively.
02-22-2018, 09:49 PM
#2
CF Veteran
Join Date: Jan 2016
Location: Newport News, VA
Posts: 1,242
Likes: 0
Received 38 Likes
on
37 Posts
Year: 96 & 88 4 dr Cherokees
Most of todays newer cars do that, only thing that keeps the heat from you is the blend door.
If you don't ever use heat, just bypass the heater core altogether by connecting the heater core inlet & outlet hoses.
If you don't ever use heat, just bypass the heater core altogether by connecting the heater core inlet & outlet hoses.
02-22-2018, 10:31 PM
#3
::CF Moderator::
Join Date: Aug 2011
Location: Prescott, Az
Posts: 43,867
Received 1,525 Likes
on
1,237 Posts
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Hey guys,
Title says it all. Thinking about deleting the stupid, plastic heater control valve 'cause the thing leaks and is getting worse. Aside from laziness, the other reason I have not done this is because I am wary of heater core failure. I NEVER use the heat setting, and hearing the stories of coolant vapor in the cab, along with knowing the trouble it is to replace the heater core, I want to avoid these things.
As I understand it, deleting the HCV will allow coolant to flow through the heater core all the time. I have always assumed this does not occur when the blower is on the "vent" setting, which I use exclusively.
Title says it all. Thinking about deleting the stupid, plastic heater control valve 'cause the thing leaks and is getting worse. Aside from laziness, the other reason I have not done this is because I am wary of heater core failure. I NEVER use the heat setting, and hearing the stories of coolant vapor in the cab, along with knowing the trouble it is to replace the heater core, I want to avoid these things.
As I understand it, deleting the HCV will allow coolant to flow through the heater core all the time. I have always assumed this does not occur when the blower is on the "vent" setting, which I use exclusively.
02-23-2018, 07:16 AM
#5
::CF Moderator::
Join Date: Aug 2011
Location: Prescott, Az
Posts: 43,867
Received 1,525 Likes
on
1,237 Posts
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
The HCV doesn't control pressure. Just flow.
02-23-2018, 12:14 PM
#7
CF Veteran
Exactly the opposite is true. The HCV will more likely lead to a heater core failure due to the fact that in the Summer you'll never get fresh coolant circulated through it. Get rid of that over engineered piece of crap.
Trending Topics
Thread
Thread Starter
Forum
Replies
Last Post
investinwaffles
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
8
12-12-2018 04:35 PM
VFQuake
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
2
09-29-2013 09:42 AM
sr77
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
3
07-23-2012 10:13 AM
McHank
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
3
04-03-2012 11:53 AM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)