QUESTION: Just thought, dose the temp gauge come with the sender unit attached ? if not can you please send that as well, as I don't wont to fit a new gauge and then find the sender is the problem.
ANSWER: The switchable gauge and sending unit are the same piece of equipment. The sending unit that goes in the water pushes a gas down a very small tube to the gauge where it pushes the needle. If the tubing gets kinked and the gas leaks out, the gauge will no longer work.
Link
ANSWER: The switchable gauge and sending unit are the same piece of equipment. The sending unit that goes in the water pushes a gas down a very small tube to the gauge where it pushes the needle. If the tubing gets kinked and the gas leaks out, the gauge will no longer work.
Link