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Jeep Wrangler YJ
YJ General Discussion
Overheating 1995 YJ 2.5
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<blockquote data-quote="SirDoopYJ" data-source="post: 433345" data-attributes="member: 19139"><p>If the gauge is showing signs of heat immediatley then it sounds like a grounding or some eletrical issue. The temp sending unit is a variable resistor. If the connection in the wiring is broken, or if there is no clean contact between head and sending unit then you will have high resistance which would translate to the rise in temp.</p><p></p><p>Where did you buy the sending unit?</p><p></p><p> For me that was the most confusing thing to buy because they look identical to the temp sensor for the thermostat. I saw some sensors were called sending units when they are for the thermostat housing.</p><p></p><p>There is a test you can perform on the gauge and one for the sending unit. It is in the FSM.</p></blockquote><p></p>
[QUOTE="SirDoopYJ, post: 433345, member: 19139"] If the gauge is showing signs of heat immediatley then it sounds like a grounding or some eletrical issue. The temp sending unit is a variable resistor. If the connection in the wiring is broken, or if there is no clean contact between head and sending unit then you will have high resistance which would translate to the rise in temp. Where did you buy the sending unit? For me that was the most confusing thing to buy because they look identical to the temp sensor for the thermostat. I saw some sensors were called sending units when they are for the thermostat housing. There is a test you can perform on the gauge and one for the sending unit. It is in the FSM. [/QUOTE]
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Jeep Wrangler YJ
YJ General Discussion
Overheating 1995 YJ 2.5
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