I have an 87 formula with 305 and 5speed. From what I can gather the 5 speed it has is a T5? And the 305 is well im not sure....

Car has been sitting for quite a few years but driven or at least started every once in a while just because. My temp gauge is not working currently and there is a sensor that is not plugged in because one of the prongs broke off. It looks to be original so im not surprised. I believe it is on the inlet to the water pump. Its a little screw in type. What is this and where can I get a new one from? Autozone and those stores dont seem to have a coolant temp sensor or anything like that. And those guys are clueless about looking up things in a book.

I am 90% sure this is why my temp gauge is not working. Am I right in thinking this? Or close anyway?

Thanks for any help.

Ethan

 

The 5 speed is a T5, the 305 is a small block chevy.

The temperature gauge sender is in the driver side head between the #1 and #3 cylinders. The temperature sensor for the computer is on the waterneck.

 

Thanks for your response.

Im not sure my computer is doing much right now as I have the HEI coil in cap w/ vacuum advance distributor (not sure if its the right one or if that matters, it is from a small block chevy though) and a edelbrock manual secondary carb. So this sensor is most likely not needed? Am I correct in assuming this?

The gauge on the cluster for temp...I would assume that it takes its signal from the sender on the side of the block? Maybe I can check the connection there. There are so many sensors and harnesses unplugged its hard to tell what is going on.

Thanks again

 

Coolant temperature sensor isn't needed if the computer isn't functional.

The gauge sender is in the head, not the block.