The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 67-72 Chevy Truck fuel gauge diagnostics 101

Threerun · 08-29-2018, 01:53 PM

Glad I stumbled into this thread- my fuel gauge (previously working great) just went to full 3 O'clock and won't budge. Last night I started simple- pulling the tan wire from the sending unit- noticed as I moved it up or down on the sending unit post the fuel gauge bounced to just below 'F' and then back to 2-3 O'clock.

Appears my tank is grounded to frame.

Might try a jumper ground wire from sending unit to frame- see what happens.

Great thread, btw- appreciate the information very much.

08-29-2018, 01:53 PM	#134
Threerun Registered User Join Date: May 2017 Location: Helena, MT Posts: 80	Re: 67-72 Chevy Truck fuel gauge diagnostics 101 Glad I stumbled into this thread- my fuel gauge (previously working great) just went to full 3 O'clock and won't budge. Last night I started simple- pulling the tan wire from the sending unit- noticed as I moved it up or down on the sending unit post the fuel gauge bounced to just below 'F' and then back to 2-3 O'clock. Appears my tank is grounded to frame. Might try a jumper ground wire from sending unit to frame- see what happens. Great thread, btw- appreciate the information very much.