is there a fusable link

halifaxhops said
Think of the sender like a resistor to ground, seriously doubt you blew it out unless did you put 12 VDC to it? Pretty easy to check with a ohm meter take it off the sender and check the wire from the gauge plug to the other end it should be open not hooked up and 0 id you ground the sender end at the engine. Turn the KEY OFF when you do it hope this helps.

what I did was take the new temp gauge and lay it on the fender. I ran a hot wire from the new gauge to pos. side of battery like the diagram showed. I ran a neg. wire from gauge to gnd. and it had a wire from gauge to sending unit. as soon as I hooked this up it pegged the needle on the new temp gauge. I unhooked the wire from the sending unit and the needle returned back to the low side. Touched it again to the sending unit and it pegged again. So I unhooked the wire going to the cluster from the sending unit and hooked up the wire from the new gauge and it was fine. so I assumed it was back feeding or something. I went ahead and ran the car with the new gauge to check how hot it was running. when I was done, I unhooked the new gauge and plugged in the factory wire nd that is when I noticed the gauge in the cluster wasn't working anymore. I got another factory gauge from a member and installed it in the cluster and hooked it up and it doesn't work either. so I don't know what the hell I did.