Hello Everyone,
I have an 87 turbo.
My water temp gauge needle points straight up when i turn car on.
I dont know what to do... can anyone help?

 

Well the stock temperature guage sucks to begin with. Now may be the time to look into purchasing an aftrmarket temp. guage! But I would check the sender too, I haven't installed an aftermarket guage on mine, so I'm not sure if they come with another sensor, but if they use the stock one and the stock one is toast, then it would pointless.

 

I would check your sending unit and the wiring between the sender and the gauge.
Sounds like your gauge is displaying a dead short.

 

Yea I just changed the water temp switch/sender and added a new connector peice. Its Deff the wiring between. going to rewire it soon.

 

Okay Water temp sensor still not working and im researching and researching and everyone contradicts each other.
I have an Japan Import 1987 Turbo.
Can anyone tell me which sensor controls the gauge?
is it:
A - the sensor behind the water pump
B - the sensor on the thermostat neck
C - the sensor on the bottom of the radiator
D - the sensor near the fuel filter

 

D.

Under the oil filter pedestal near the big oil pressure sending unit.