Safe/Normal Operating Temp

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Jul 9, 2012 | 09:32 PM

kaz2000xjsport

Thread Starter

Member

Joined: Oct 2010

Posts: 147

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From: NJ / Tuscaloosa

Year: 2000

Model: Cherokee

Engine: N/A

Safe/Normal Operating Temp

210? Is over 210 slightly anything to worry about?

Jul 9, 2012 | 09:34 PM

Muaddib420

Seasoned Member

Joined: Jun 2012

Posts: 485

Likes: 3

Model: Cherokee

210 is normal. E fan kicks in at 218. My XJ goes slightly above 210 when the AC is on sitting at a light.

Jul 9, 2012 | 09:41 PM

kaz2000xjsport

Thread Starter

Member

Joined: Oct 2010

Posts: 147

Likes: 0

From: NJ / Tuscaloosa

Year: 2000

Model: Cherokee

Engine: N/A

Can you make the E-fan come on at a cooler temp? Like a different thermo maybe?

Jul 9, 2012 | 10:08 PM

DirtRoadXJ

Senior Member

Joined: Nov 2011

Posts: 656

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From: Manteca, CA

Year: 1998

Model: Cherokee

Engine: 4.0

theres a write up for an over ride switch so you can turn it on whenever.

https://www.cherokeeforum.com/f51/el...switch-132465/

Jul 9, 2012 | 10:58 PM

DFlintstone

CF Veteran

Joined: Aug 2011

Posts: 10,489

Likes: 24

From: Nor-Cal Coast

Year: 90,84

Model: Cherokee

Engine: 4.0,2.5

Not really something I'm into, or familiar with...I noticed in a recient "heat soak" thread there was some mention of TSB's and a reprogram for the puter' to change the way to fan comes on...$150 was mentioned there IIRC. That had to do with fuel system stuff getting hot. If it's working fine I might just leave it. I don't think the metal cards allot about the difference between 212* and 218*....

Jul 9, 2012 | 10:59 PM

Greyly Driver

Newbie

Joined: Jun 2012

Posts: 21

Likes: 0

Year: 87

Model: Cherokee

Engine: 4.0 i6

make sure everythings still hooked up properly for the ecu according to those diagrams in the writeup. my nephew deleted everything but the power-> switch-> fan and killed his ac because the sensor wasnt going to the ecu