Quote: three senders all wrong? I'd yank that gauge, clean the contacts, check your cluster ground, find an ohm chart, then buy resistors from radio shack and use them to adjust the gauge.
Sorry I've sorted out enough gauges on these cars to tell you the repo senders are junk... To test the gauge IVR & wiring a gauge system tester is the tool of choice..
But the fact he has plugged in an original sending unit & it works tells me the repo senders have all been bad...
Personally I've had the last three fuel senders rewound by my local instrument repair shop.. Costs more than a repo sender but it works...
