Bad temperature gauge or bad connection?

[TexAndy]

My temperature gauge was not working. So I replaced it with the one from my parts truck.

I ran the truck for a few minutes and watched the needle slowly move up. Shut her down at 170. Problem solved.

Out of curiosity, I took the "bad" gauge and switched my multimeter over to resistance measurement and touched the leads to the gauge pins. Meter shows the gauge is providing 553 ohms of resistance.

how much resistance should the gauge normally have? Is the old gauge bad or did I just have a bad connection?

 

[Westech]

why not test the one that is working........

 

[TexAndy]

It's a pain in the butt to disconnect.

 

[Westech]

why not test it before you put it in?

 

[TexAndy]

I didn't think to test anything at the time. I just wanted to install it and get it done. And I'm fresh out of time traveling Deloreans.

 

[cattlerepairman]

And I'm fresh out of time traveling Deloreans.