OK, taking this problem down one thing at a time. First, I have a 97 Formula 583 with a non-working temp guage. I have replaced the temp sending unit, pulled the thermostat and tested it by heating it up and making sure it opened. I also tested both the new and old temp sending unit by heating up and hitting with a continuity tester. Nothing while cold, good while hot. I pulled the gauge out and tested with a battery charger, tops out at 12V 12A, goes about halfway 12V 2A.
I think I have the system burped good, I get no more air coming out of the bleeder on top of the gooseneck with the front up about 2.5 feet. I checked continuity between the guage and the TSU and it seems ok.
I did notice that when I check cont between those two, when I test the yellow wire to the harness right before the hood wire, it comes though on all four wires in the harness and one in the other, but I thought this "may" be normal if it's a hot wire. wasn't sure if green or yellow is the feed. The green wire only buzzes through to one wire.
Any ideas what else to check? Is it possible to put the thermostat in backwards or wrong where it would restrict coolant flow to the TSU? I assume it won't register well with only hot air in it. My cooling fins heat up pretty hot so I assume I am getting good flow through the thermostat...
Any suggestions would be appreciated. The shop can't look at it for a couple weeks and my wife isn't happy
I think I have the system burped good, I get no more air coming out of the bleeder on top of the gooseneck with the front up about 2.5 feet. I checked continuity between the guage and the TSU and it seems ok.
I did notice that when I check cont between those two, when I test the yellow wire to the harness right before the hood wire, it comes though on all four wires in the harness and one in the other, but I thought this "may" be normal if it's a hot wire. wasn't sure if green or yellow is the feed. The green wire only buzzes through to one wire.
Any ideas what else to check? Is it possible to put the thermostat in backwards or wrong where it would restrict coolant flow to the TSU? I assume it won't register well with only hot air in it. My cooling fins heat up pretty hot so I assume I am getting good flow through the thermostat...
Any suggestions would be appreciated. The shop can't look at it for a couple weeks and my wife isn't happy