New heater contrl valve leak?

Reply Subscribe

Thread Tools

Search this Thread

Aug 1, 2011 | 02:26 PM

95black

Thread Starter

Junior Member

Joined: May 2011

Posts: 67

Likes: 0

Model: Cherokee

New heater contrl valve leak?

I just put a new. Heater control valve in and it leaks when you start it after it hasnt run in a while but then it just stops when it runs for about 2 min. It comes out the silver arm part that pushes the diapham thingy.. Any suggestions? I just had a radiator flush done too

Aug 1, 2011 | 02:39 PM

djb383

CF Veteran

Joined: Nov 2009

Posts: 8,172

Likes: 17

From: The Republic of TEXAS

Year: 1998

Model: Cherokee

Engine: 4.0L HO

Get longer heater hoses and eliminate the valve....that's what the factory did '97 up.

Aug 1, 2011 | 02:46 PM

95black

Thread Starter

Junior Member

Joined: May 2011

Posts: 67

Likes: 0

Model: Cherokee

Oh, didnt know that! Anybody have any pics on how this setup works? This plastic piece of junk is worthless...

Aug 1, 2011 | 03:55 PM

s14unimog

CF Veteran

Joined: Dec 2009

Posts: 1,396

Likes: 2

Model: Cherokee

how is the heat controlled on a '97 and up model? Is there not some blender valve in the routing somewhere?

Aug 1, 2011 | 04:32 PM

djb383

CF Veteran

Joined: Nov 2009

Posts: 8,172

Likes: 17

From: The Republic of TEXAS

Year: 1998

Model: Cherokee

Engine: 4.0L HO

I believe more or less heat is controlled by more or less cool/cold air flowing across the heater core. Coolant flow thru the heater core is constant.