I have a 1994 jeep cherokee sport I have had a new thermostat put on keep it filled with anit-free and yet everytime I run the air it runs hot...I dont know why

20

Asked by Jun 16, 2012 at 11:59 PM about the 1994 Jeep Grand Cherokee

Question type: Maintenance & Repair

4 Answers

1,735

First question, what are you considering "running hot" ? The Cherokee normally runs around 210 degrees so, if that is what you are getting, that is normal. If it is running hotter than that, is the AC blowing cold ? Do you hear the electric engine fan ( condenser fan for the AC ) turning on when you run the AC ? If the AC starts to blow cold and then seems to get warmer after running for a few minutes or, if you do not hear the condenser fan turning on, it may be the AC fan switch or the fan itself has failed. If you have a 12 volt test light, disconnect the fan connector and turn the AC on MAX ( with the engine running ), insert the tip of the test light into the fan connector and watch it for a few minutes, when the switch "calls" for the fan to turn on, the test light will light if there is power -- If there is no power, the AC condenser fan switch has failed, if there IS power and the fan does not run, the fan has failed.

2 out of 2 people think this is helpful.
20

thank for your answer however thats not the problem the fan is working just fine and the air stays cold ...but the temperature gage will go all the way to the red after about 30 minutes if the ac is still running but it only seems to do that in the heat or the sun at night seems to run fine....so I am thinking maybe its the radiator but was looking for other solutions before spending that kind of money....any advise

2 out of 2 people think this is helpful.
7,565

does the coolant FLOW through the rad? Way to tell is to remove the elect. cooling fan, and allow eng. to come to operating temp. shut off eng. and feel the surface of the radiator, If it cool at bottom but hot at the top. its clogged. It sounds like you have partial flow from the discreption you gave. Hope this helps......

3 out of 3 people think this is helpful.

Description of Symptoms sound perfectly normal. You can always try a reverse heater hose flush as a check point. I own a 94 Cherokee and was amazed when I found out the running temps. Be not alarmed it is normal.

Your Answer

Add photo

Related Questions

Grand Cherokee

Looking for a Used Grand Cherokee in your area?

CarGurus has 74,516 nationwide Grand Cherokee listings starting at $750.

ZIP:

Search Jeep Grand Cherokee Questions

Jeep Grand Cherokee Experts

#1 inuevafreak
inuevafreak
Reputation 2,060
#2 Tom Demyan
Tom Demyan
Reputation 1,830
#3 thejeepdoctor
thejeepdoctor
Reputation 1,740
View All

Related Models For Sale

Used Jeep Cherokee
430 Great Deals out of 52,613 listings starting at $1,800
Used Jeep Wrangler
275 Great Deals out of 18,088 listings starting at $2,950
Used Ford Explorer
935 Great Deals out of 72,524 listings starting at $1,499
Used Toyota 4Runner
245 Great Deals out of 20,405 listings starting at $1,800
Used Chevrolet Tahoe
557 Great Deals out of 28,837 listings starting at $1,699
Used Ford F-150
2,181 Great Deals out of 206,248 listings starting at $1,499
Used Chevrolet Camaro
214 Great Deals out of 30,767 listings starting at $1,217

Used Cars For Sale

2017 Jeep Grand Cherokee For Sale
63 Great Deals out of 45,554 listings starting at $21,390
2016 Jeep Grand Cherokee For Sale
136 Great Deals out of 3,534 listings starting at $19,900
2015 Jeep Grand Cherokee For Sale
193 Great Deals out of 4,811 listings starting at $18,900
2014 Jeep Grand Cherokee For Sale
224 Great Deals out of 6,957 listings starting at $13,588
2013 Jeep Grand Cherokee For Sale
27 Great Deals out of 1,202 listings starting at $9,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.