Hi guys. The water temp gauge seems to be reading very cold or not at all. I have used the heater and it works very well which means that the water temp is getting up to op temperatures. Can anybody direct me to the sending unit location on my 360 engine? I thought I would at least start there and see if that might be the problem. If it turns out to be the instrument, can it be replaced or should I just go with a different gauge placed discretely inside the cab somewhere? Thanks for the replies. Donald.