The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post

zac · 12-31-2011, 05:02 PM

You've probably heard this multiple times, but these problems almost always turn out to be a ground issue. The only one I've ever successfully fixed was my '79 pickup. It was a while back so I don't remember that much, but I spent a ton of time with a diagram following every wire, ended up fixing something on the back of the gauge having to do with the ground, maybe having to do with the printed circuit as well. Whatever I did involved pulling the instrument panel out. I think the set up is similar on 67-72's. The gauge on my '70 burb is intermittent, I haven't even tried yet. I just fill up every 200 miles and ignore it. I'm probably not the only one. Good luck and happy new year, let us know how it goes.

12-31-2011, 05:02 PM	#2
zac Registered User Join Date: Jul 2008 Location: louisville, ky Posts: 502	Re: Gas gauge reads empty to 1/4 only You've probably heard this multiple times, but these problems almost always turn out to be a ground issue. The only one I've ever successfully fixed was my '79 pickup. It was a while back so I don't remember that much, but I spent a ton of time with a diagram following every wire, ended up fixing something on the back of the gauge having to do with the ground, maybe having to do with the printed circuit as well. Whatever I did involved pulling the instrument panel out. I think the set up is similar on 67-72's. The gauge on my '70 burb is intermittent, I haven't even tried yet. I just fill up every 200 miles and ignore it. I'm probably not the only one. Good luck and happy new year, let us know how it goes.