emergency cooling. help please

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Aug 26, 2012 | 12:25 AM

#16

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

Just a caviot ....wetting the radiator it's self will aid cooling as the water evaporates off the fins. Not so practical...but I have heard of guys installing a "mister", to aid cooling. Depression days? Idk. Anyway you can always wet the radiator with a hose (when you got one), to aid cooling.

(Change of state. Liquid turning to vapor absorbs heat)

That's also how your AC and your frig works.

Last edited by DFlintstone; Aug 26, 2012 at 12:33 AM.

Aug 26, 2012 | 12:42 AM

#17

car5car

Banned

Joined: Jan 2012

Posts: 415

Likes: 1

From: FL

Year: 2001

Model: Cherokee

Engine: 4.0

Quote:

Originally Posted by freegdr

not sure about 99 but unplugging coolant temp switch should cause cooling fan to run gonna throw a check engine light but better than buying a motor

98 cool temp sensor decreases resistance while warming up. That means, shorting connector will keep fan running, but the same sensor provides data for fuel delivery, engine will not run well.
Removing fan relay and installing jumper would be better solution.

Aug 26, 2012 | 12:56 AM

#18

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

My older Jeep (90), uses a separate coolant temp sensor for the fan.

Last edited by DFlintstone; Aug 26, 2012 at 12:59 AM.

Aug 26, 2012 | 11:49 AM

#19

rklettke

Thread Starter

Senior Member

Joined: Oct 2011

Posts: 542

Likes: 2

From: Phoenix, AZ

Year: 1998

Model: Cherokee

Engine: 4.0 L6

And to think I put in over $230 of maintenance before I took this trip to prevent such a thing lol... I'll probably be changing the oil next weekend I guess. Am I going to need to change the filter again as well? I just changed it all before I took this 1400mi trip.