Russ B
Newbie
Just went thru this with my 1989. It is probably similar. Before you go crazy on the dash gauge, make sure it is that. Go to fuel tank electrical connector. Disconnect it. Gauge should read F or more. May have to turn on ignition. If not check for power on one of the leads. Not sure what the reading should be but should have some power. Ground the other wire (signal). That should make gauge read empty. If those work problem is in the tank module.
Good luck I spent a miserable week troubleshooting even with instructions and lots of Utube videos as nothing seemed to work. I went so far as installing aftermarket gauge and that did not work. The fix was a new intank module which I did before even starting to troubleshoot. But did not fill the tank as it is 34 gallons. When full the gauge came alive.
Good luck I spent a miserable week troubleshooting even with instructions and lots of Utube videos as nothing seemed to work. I went so far as installing aftermarket gauge and that did not work. The fix was a new intank module which I did before even starting to troubleshoot. But did not fill the tank as it is 34 gallons. When full the gauge came alive.