imstuck Posted March 22, 2013 Share Posted March 22, 2013 My rig runs a little warm when I'm towing. What are some of the setups you guys are doing to alleviate this? I assume changing the thermostat to a cooler one would help a little. Anyone know what the stock thermo is? I don't drive it in the winter so i don't need to make much heat. Was wondering about additional cooling fans etc. that others are doing. I read on a Cherokee forum that a 97-01 factory electric fan is more efficient. True? It only runs hot when I'm on it hard under load with the A/C on. My rigs a 91 Eliminator 4.0 auto. I hate to hack it up to much because its pretty clean. Thanks! Link to comment Share on other sites More sharing options...
Eagle Posted March 23, 2013 Share Posted March 23, 2013 A colder thermostat will NOT help. If you're running warmer than usual, the thermostat is open and the radiator can't shed the heat fast enough. Open is open -- opening earlier won't alleviate the problem. Do you have an automatic? If so, do you have an external transmission cooler? How old is your radiator? Have you had it boiled out and flow tested? Link to comment Share on other sites More sharing options...
ParadiseMJ Posted March 23, 2013 Share Posted March 23, 2013 It only runs hot when I'm on it hard under load with the A/C on. My rigs a 91 Eliminator 4.0 auto. I hate to hack it up to much because its pretty clean. Thanks! I run hot under load too....I don't mean my truck, I mean me. Just physics...if it works harder it likely will get hotter. Why would you need to hack anything up?? If you want to put hood vents on it, just do a clean job...makes the Jeep look even better IMHO. If not, then don't. Good, you have an open cooling system. If you don't have a trans cooler...and I don't mean the little wimpy 3 inch by 12 inch one...and by "external" cooler, it means not the "heat exchanger" in the radiator, then you should invest in one to protect your tranny, and keep things cooler overall. You'll get more information if you participate in the discussion. Link to comment Share on other sites More sharing options...
shelbyluvv Posted March 23, 2013 Share Posted March 23, 2013 My vote is a external trans cooler too. Link to comment Share on other sites More sharing options...
HOrnbrod Posted March 23, 2013 Share Posted March 23, 2013 I used the "wimpy" factory cooler on my 91; it helped. What helped more was the extra electric fan and replacing the plastic sided POS factory radiator with a quality all-metal 2-row radiator. No chopping required for any of this. http://comancheclub.com/topic/7895-dual-oem-aux-fan-installation/ Link to comment Share on other sites More sharing options...
imstuck Posted March 23, 2013 Author Share Posted March 23, 2013 Thanks for the feed back guys. I think i will add the auto tranny cooler (can't believe i didn't think of that), the 97-01 updated electric fan, and replace my clutch fan with an electric one too. That damn clutch fan is loud as hell any how! Link to comment Share on other sites More sharing options...
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