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Jul 20, 2011 | 06:21 PM

#16

djb383

CF Veteran

Joined: Nov 2009

Posts: 8,172

Likes: 17

From: The Republic of TEXAS

Year: 1998

Model: Cherokee

Engine: 4.0L HO

Quote:

Originally Posted by 96_xj

wrong.....

you actual cause more damage to the engine as the engine takes longer to warm up and the most wear and tear on the engine is during warm up.

there are lots and lots of articles about it as well. never change out your tstat. always run a 195*

What r u saying and what does it have to do with my post.

Jul 20, 2011 | 06:30 PM

#17

Metlic53

CF Veteran

Joined: Nov 2009

Posts: 1,262

Likes: 0

From: Conroe, Texas

Year: 1997

Model: Cherokee

Engine: I6

Quote:

Originally Posted by djb383

What r u saying and what does it have to do with my post.

he's saying no matter what if you change the t-stat anytime of the year it will take the 4.0 longer to get up to the correct temp and cause more wear and tear. a 180 t-stat will take longer to warm up to operating temperature than a 195 t-stat will.

Last edited by Metlic53; Jul 20, 2011 at 06:32 PM.

Jul 20, 2011 | 06:32 PM

#18

94XjSport94

CF Veteran

Joined: Apr 2011

Posts: 14,553

Likes: 1

From: Carrollton, GA

Year: 1994

Model: Cherokee

Engine: Inline 6 4.0L High Output

My fan kicks on, im not sure what temp it does i havent watched to see, but all works well especially after my upper radiator hose exploded last week

Jul 20, 2011 | 06:34 PM

#19

djb383

CF Veteran

Joined: Nov 2009

Posts: 8,172

Likes: 17

From: The Republic of TEXAS

Year: 1998

Model: Cherokee

Engine: 4.0L HO

If the gauge had a C and H (no numbers) what would the operating temp be? No where in the FSM does it say 210 or 195 is normal operating temp.

Jul 21, 2011 | 02:15 AM

#20

XJ Joe 1723

Thread Starter

Junior Member

Joined: Jan 2011

Posts: 58

Likes: 0

Year: 1991

Model: Cherokee

Engine: 4.0 6cyl.

I am putting a OEM replacement TStat in this thing in the am. My electric fan kicks on and runs and seems to help. I blew the radiator fins out today and they were not real dirty and also washed the radiator out. The system is full and as far as I can tell the water pump is flowing coolant. The radiator cap seems to hold pressure seeing as it is not bypassing coolant out to the ground. the overflow tank s not full or empty but has some in it. Will change tstat and see what happens. Maybe the fan clutch next. Is there a good upgrade as fas as this part goes? Or just use OEM? You guys have been great help and I will update how it goes later.