Temperature gauge on dash not working after replacing old coolant fan switch.

1986 FORD MUSTANG
70,000 MILES
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JESSICAKING
  • MEMBER
  • 1 POST
* 2.3 L, 4 cylinder, automatic, nat. aspirated carb., non-turbo, air conditioned )
Replaced radiator, thermostat, coolant fan switch, fan relay,(fan was not working which fixed that problem). But now, the temperature gauge on dash after changing the coolant temp switch's. Before changing the "Switches" the temp gauge on dash worked. My car has two temperature switches. One is on the engine block, below the air cleaner and another one is on a rail that supplies coolant to the heater core. Part stores and repair manual's only list one temperature switch. the one on the block. What are these two switches that I mentioned? Both "switches" are threaded studs on both sides. Measuring 3/8" X 18 NPT.
Sep 14, 2012 at 5:50 PM
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HMAC300
  • Experienced Mechanic
  • 48,601 POSTS
the a/c fan takes is in the pic it has different color wires thatn cooolant temp switch see if the coolant temp is unplugged. or yu replaced the wrong switch.
Sep 14, 2012 at 6:32 PM
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