Is my jeep running too cold?!

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Jan 4, 2012 | 12:01 PM

#16

inmansten0

Junior Member

Joined: Dec 2011

Posts: 33

Likes: 0

From: waterford michigan

Year: 1989

Model: Cherokee

Engine: 4.0

The cooler your engine runs the better would there even be a too cold when it comes to temps?

Jan 4, 2012 | 12:07 PM

#17

tjwalker

CF Veteran

Joined: Nov 2010

Posts: 5,840

Likes: 117

From: In the middle of Minnesota!

Year: 1999

Model: Cherokee

Engine: 4.0

Quote:

Originally Posted by inmansten0

The cooler your engine runs the better would there even be a too cold when it comes to temps?

The engine is designed to run warm for best efficiency and emissions control. So yes, it absolutely CAN run too cool.

The vast majority of 4.0 engines run (and should) between 200-210 degrees farenheit, give or take a few.

Jan 9, 2012 | 06:20 PM

#18

cherokeelaredo'90

Thread Starter

Senior Member

Joined: Aug 2011

Posts: 604

Likes: 1

From: California

Year: 1990

Model: Cherokee

Engine: 4.0 i6

I finally got a temp gun and I scanned the tstat housing and it read around 187.. Then I scanned the middle of the block and that read 205. Mean while the gauge was reading between the first tick and 210. So should I declare everythings fine or should I still swap the tstat to a 195..??