The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Installed '90 GM Factory EFI tank, '72 Blazer Factory gas gauge is pegged past full?

Okie528 · 09-25-2017, 08:54 AM

Finally success! I used the plug from a 3 wire non-high temp sending unit off an earlier model on the 4 wire high temp sending unit that fit the tank I bought and voila, fuel gauge dropped to empty

. It was just a hunch, but it worked! It was a bit of a pain removing the wire pin's and carefully removing the pressed in plug to the top of the sending unit, but worth it to have a functioning fuel gauge!

Thanks to all that responded to the thread helping me troubleshoot this issue.

I love this message board!

09-25-2017, 08:54 AM	#20
Okie528 Registered User Join Date: Feb 2016 Location: Maryville, TN Posts: 44	Re: Installed '90 GM Factory EFI tank, '72 Blazer Factory gas gauge is pegged past fu Finally success! I used the plug from a 3 wire non-high temp sending unit off an earlier model on the 4 wire high temp sending unit that fit the tank I bought and voila, fuel gauge dropped to empty . It was just a hunch, but it worked! It was a bit of a pain removing the wire pin's and carefully removing the pressed in plug to the top of the sending unit, but worth it to have a functioning fuel gauge! Thanks to all that responded to the thread helping me troubleshoot this issue. I love this message board!