Re: Temp sending Unit

Posted by VesPac On 2016/8/25 22:27:29

I have also bad temp sending unit. Like here someone write and have used NAPA Echlin TS6464 sending unit, so I got also one. Temp gauge does not reading right. Test with potentiometer connected and instrument cluster temp gauge shows:
Hot = 14,2 Ohms
1/2 way = 26 Ohms
Cold = 72 Ohms

When I use TS6464 gauge reading was too hot. Add one 10 Ohm resistor and reading was correct 1/2 way.

180F thermostat.
Cylinder head 213F
Top water hose 182F
Bottom water hose 167F

This works to me and car is -51 Packard. Echlin TS6464 have same 1/4 thread as old sender and cost just under $13.