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Jeep Wrangler JK
JK General Discussion
Need cooling system help please
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<blockquote data-quote="Creston" data-source="post: 442811" data-attributes="member: 22510"><p>Everything is good. No air in the system. Thermostat is new. System is circulating. Bottom hose is several degrees cooler tan top, everything is right. System is checked. I know it's good. Uv dye in the system, no leaks. Then new Mopar antifreeze (hoat) It's all good. Other than the fan. </p><p></p><p>The system is getting hot enough. The ect sensor is reading correctly. The old one was too but was jumpy. I can even run the ect sensor up to 220 and the fan doesn't come on. Thermostat is 195 so id assume fan is around that. I can watch the computer output with my scan tool. It's not telling the fan to come on unless I over ride it or turn on the AC, which forces the fan on, on most vehicles (if not all) to cool the condenser. Fan works fine if manually turned on or by the AC</p><p></p><p>The TIPM was changed around 30k. Same ol Mopar tipm issues. Could be my issue. But maybe someone knows something else that can cause the computer to keep the Command state on off. Another sensor or something</p></blockquote><p></p>
[QUOTE="Creston, post: 442811, member: 22510"] Everything is good. No air in the system. Thermostat is new. System is circulating. Bottom hose is several degrees cooler tan top, everything is right. System is checked. I know it's good. Uv dye in the system, no leaks. Then new Mopar antifreeze (hoat) It's all good. Other than the fan. The system is getting hot enough. The ect sensor is reading correctly. The old one was too but was jumpy. I can even run the ect sensor up to 220 and the fan doesn't come on. Thermostat is 195 so id assume fan is around that. I can watch the computer output with my scan tool. It's not telling the fan to come on unless I over ride it or turn on the AC, which forces the fan on, on most vehicles (if not all) to cool the condenser. Fan works fine if manually turned on or by the AC The TIPM was changed around 30k. Same ol Mopar tipm issues. Could be my issue. But maybe someone knows something else that can cause the computer to keep the Command state on off. Another sensor or something [/QUOTE]
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Jeep Wrangler JK
JK General Discussion
Need cooling system help please
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