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Jeep Wrangler YJ
YJ General Discussion
Still overheating
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<blockquote data-quote="JEEPenn" data-source="post: 439350" data-attributes="member: 21230"><p>Yes to all the above <img class="smilie smilie--emoji" loading="lazy" alt="😉" title="Winking face :wink:" src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f609.png" data-shortname=":wink:" /></p><p>Take a gander at the huge list of parts and labor that I have done to try and repair the issue.</p><p></p><p>Flyer58 I have had a chance to try and “burp” the cooling system per your suggestion.</p><p> I drove the front up on ramps and deflated the rear tires that placed the vehicle in a 16 degree nose up position.</p><p> I opened the radiator cap and started the engine and let it run until the thermostat quit cycling and I had a constant flow through the radiator upper tank then I resealed the radiator cap.</p><p> During the entire process no air bubbles were detected in the radiator tank and it did overflow about 1/4 cup of coolant.</p><p> I used my no contact temperature tester and at the sensor/sending unit the temperature read 210 degrees and the gauge read 220 degrees.</p><p> At the thermostat housing the temperature reading was 180-185 degrees. I currently have a 180 degree thermostat in it.</p><p> The outside temperature was around 100 degrees and the humidity was high.</p><p> All readings were at idle without the A/C running.</p><p> When I turned on the A/C the temperature immediately started climbing and within 5 minutes had risen to 260 degrees.</p><p> I checked the electric condenser fan that I had installed about 5 years ago and noticed that it was turning but like it was on low speed.</p><p> It was rated at 800 cfm and I recall that it was blowing MUCH harder when I installed it.</p><p> I have ordered a new condenser fan that will be delivered tomorrow and it is rated at 1670 cfm.</p><p> Maybe that was the the main issue</p></blockquote><p></p>
[QUOTE="JEEPenn, post: 439350, member: 21230"] Yes to all the above 😉 Take a gander at the huge list of parts and labor that I have done to try and repair the issue. Flyer58 I have had a chance to try and “burp” the cooling system per your suggestion. I drove the front up on ramps and deflated the rear tires that placed the vehicle in a 16 degree nose up position. I opened the radiator cap and started the engine and let it run until the thermostat quit cycling and I had a constant flow through the radiator upper tank then I resealed the radiator cap. During the entire process no air bubbles were detected in the radiator tank and it did overflow about 1/4 cup of coolant. I used my no contact temperature tester and at the sensor/sending unit the temperature read 210 degrees and the gauge read 220 degrees. At the thermostat housing the temperature reading was 180-185 degrees. I currently have a 180 degree thermostat in it. The outside temperature was around 100 degrees and the humidity was high. All readings were at idle without the A/C running. When I turned on the A/C the temperature immediately started climbing and within 5 minutes had risen to 260 degrees. I checked the electric condenser fan that I had installed about 5 years ago and noticed that it was turning but like it was on low speed. It was rated at 800 cfm and I recall that it was blowing MUCH harder when I installed it. I have ordered a new condenser fan that will be delivered tomorrow and it is rated at 1670 cfm. Maybe that was the the main issue [/QUOTE]
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Jeep Wrangler YJ
YJ General Discussion
Still overheating
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