Cooling, thermostat, waterpump

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Mar 21, 2016 | 06:43 PM

#16

odgreen

CF Veteran

Joined: Nov 2010

Posts: 15,581

Likes: 8

From: some small town oregon

Year: 1989

Model: Cherokee

Engine: 4.0

Mopar already eliminated it for you. So no test needed.

Mar 21, 2016 | 08:12 PM

#17

RED RIVER

Member

Joined: Feb 2016

Posts: 209

Likes: 1

From: Thurston County, Wa.

Year: 1994

Model: Cherokee

Engine: 4.0 HO

Quote:

Originally Posted by cruiser54

Your heater control valve could be bad. eliminate it.

You mean this little turd ? I hate them !

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Cooling, thermostat, waterpump-image-2723241834.jpg

Mar 21, 2016 | 08:22 PM

#18

bfrat

Thread Starter

Junior Member

Joined: Feb 2016

Posts: 49

Likes: 2

Year: 1997

Model: Cherokee

Engine: 4L

I do not believe my '97 has one. Would it be connected to the in/out heater coil hoses? Or is it off to the left or right? There is something to the left but doesn't look like the mechanism in the photo.

Mar 21, 2016 | 08:30 PM

#19

odgreen

CF Veteran

Joined: Nov 2010

Posts: 15,581

Likes: 8

From: some small town oregon

Year: 1989

Model: Cherokee

Engine: 4.0

I does not have one! We have said it a few times.

Mar 22, 2016 | 09:38 AM

#20

ronananian

Newbie

Joined: Mar 2016

Posts: 12

Likes: 0

Year: 1999

Model: Cherokee

Engine: 4.0

Hi. If you are still have this problem with filling the system; have you tried taking off the upper radiator hose at the water neck and back filling the hose and radiator end till it is full? It can make a mess so be prepared but if you're careful you can fill the block till coolant seeps up past the thermostat and fills the neck. Then put the hose on, clamp it and start it. You should build normal circulation. If it still boils over and doesn't change shut it off and see if the upper and lower radiator hoses are aprox the same temp. Extreme difference can be telling us there is a circulation issue or bad NEW stat.