86 Camry temp gauge problem

[mike08003]

Hey Guys, I have an 86 Camry with temp gauge jumping all around. The car is an I4, 2.0, automatic. Where does the temp signal for the gauge come from? Is there a separate temp sender for the gauge? I replaced the Engine Coolant Sensor to fix a problem with the car stalling when once warmed up and it all worked fine. Now the temp gauge is acting wacky.

[toyomoho]

Might be under the coolant bypass housing. Look under the radiator hose where it connects to the housing.

[LyleD]

With the hood open and looking at the engine, just below the distributor on my 85, I think your engine water system is the same?? You should see 2 senders on the left side of the metal water oulet that goes to the radiator. One should have a spade terminal and the other should have about a 3 inch wire in the center connected to a plug. Clean both of these connectors, but I think your problem in the one with the spade terminal, or the rear one.
Lyle