Juarez88 Posted February 11, 2008 Share Posted February 11, 2008 I'm about 75% completed with my car to get it on the road after fire damage and one of the issues I'm having is with my coolant/water temp sensor/gauge. The coolant/water temp gauge on the car never worked and I never got around to looking into it until now. One thing that I noticed was a sensor type plug that was connected to the thermostat housing cover (see photos). The wires were severed somehow and were disconnected. I'm hoping this is why my gauge isn't working but I can't find this sensor in the haynes manual or on another 73 parts car I have. my car is a 1973 240z with round tops. If any of you know what part this is and where I can get a replacement, please let me know! thanks Quote Link to comment Share on other sites More sharing options...
X64v Posted February 11, 2008 Share Posted February 11, 2008 No, that is the 'thermotime switch' that has something to do with the water heating of the '73 flattop carbs (not sure exactly what, I never ran the flattops). Since you have the round tops, you don't need it. The sensor that runs your gauge is a 1-wire in the front part of the lower thermostat housing (it's faintly visible in the picture you posted, with the yellow wire attached to it). Quote Link to comment Share on other sites More sharing options...
Juarez88 Posted February 11, 2008 Author Share Posted February 11, 2008 I'll replace the sensor as it appears to have a small amount of damage to it and see if that helps. Thanks for the quick response! Quote Link to comment Share on other sites More sharing options...
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