temp gauge dead

[XTheMachineX]

i was driving around today and noticed my temp guage doesn't move at all, any one know why it would just stop working, and how to fix it?

 

[SASHO91]

check the sender on the thermostat housing. the wire might have fallen off, or you might need a new sender.

 

[stevemainian]

A new thermostat fixed mine.

 

[XTheMachineX]

i will do that, could you tell me where the thermostat is?? and what the sender unit looks like. thanks a bunch

 

[Camarok]

follow the upper radiator hose... on the driver side of the car.... up under the intake hose and to the throttle body..... there you will see the hose clamp onto a metal housing... that will go like 5 inches further "back" to the engine block.... back there you should see some wires coming out of what looks like a bolt.... that's the sending unit.... to get to the thermostat, you must take off the metal housing "thermorstat housing" its called, 2 nuts take that off... word of warning... radiator fluid will flow

 

[Dassin]

Yeah, may want to drain some coolant first

I had this same problem and did the thermostat & TSU and now everything's fine. For me there was an issue of a hose clamp being in the way of removing the thermostat housing though. Was kinda a pain, but I don't remember it being an issue on the 90, so hopefully that's a fluke.