Anybody have a wiring diagram for a C5? I just bought an 02 and the fuel gauge just dropped to empty. I'm not sure where to start looking.
This is a common problem with the fuel gauges on the C5. Do what the bulletin says and see if it fixes it. It should read correct again after the fuel in the tank goes down some.
That stuff is a magic potion!!!! Put 1 bottle in a full tank and didn't even drive 50 miles and the gauge started working again. I love it!