4bangerjp.com
General Forums => The Mess Hall => Topic started by: Rio_Grande on September 18, 2014, 07:56:03 PM
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My 97 was down for about 3 years with the head off. I reassembled it replaced radiator, hoses, thermostat,, everything except the water pump. I know I even had it sitting on the shelf. Put it all back together drove it about 100 miles and the water pump blew. Towed it home tore it down where it sat without the water pump for about 4 months. Reassembled with new pump. After adding coolant and bleeding, roughly 2 gallons and whatever it took to fill resivour. Drove it on a few short trips and everything seemed fine, had to add a little fluid. Yesterday I took it to get my kids from school about 20 miles. When we came out to go I noticed some coolant leaking on the ground, maybe 2 inch circle after sitting an hour. Under the hood there were a few drops of coolant near the rad cap but nothing alarming. On the way home the temp gauge began fluttering wildly. Never going over 210 but falling completely to the bottom as if the ignition was off. Then it would bounce up and down. The jeep never overheated no engine noise, just crazy gauge. I figure I will start by cleaning the connector on the temp sender and go from there. Any of this sound familiar? Any idea what's going on?
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thermostat
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My bet is on the temperature sending unit (the one on the rear of the block, not the one by the thermostat)
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My bet is on the temperature sending unit (the one on the rear of the block, not the one by the thermostat)
Plug broken, I'm also for the sending unit. Thermostat would not take it to zero.
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My bet is on the temperature sending unit (the one on the rear of the block, not the one by the thermostat)
he's got a TJ, that only has 1 sending unit in the thermostat housing, the gauge is controlled from the PCM, so it's either the thermostat or the gauge itself - after reading the original post again (he says is going down to the bottom) I agree with grumpy that it is not the thermostat, my bet a wire, connection or maybe the gauge - just thinking that the sending unit being used by the PCM might throw a code but who knows, I guess that's probably the easier one to check so maybe start there.
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I did not know TJs used only one sensor...
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I did not know TJs used only one sensor...
only one, they don't have the gauge sensor in the head (no hole either).