I have no idea, just guessing as its a mystery from the previous owner.
CK5
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Happens more often than it should these days. Ever since Covid, everything is crap quality at twice the price.
Dorman for the win!
Part number 692-056
I will need to switch the pump and sender wires around, probably on the Blazer side. Thinking PO switched the tan wires around at the gauge and power side.
Thank God I tested the sender before putting the tank up and filling with gas.
Part number 692-056
I will need to switch the pump and sender wires around, probably on the Blazer side. Thinking PO switched the tan wires around at the gauge and power side.
Thank God I tested the sender before putting the tank up and filling with gas.
Another way to test a sender using any GM gas gauge. Used one of my Milwaukee 12v batteries as battery source.
Great video on how to hook up the square body gauge and test the sender.
Great video on how to hook up the square body gauge and test the sender.
The Walbro GCA758-2 just came in. The picture from Summit shows a connector for the pump with nothing on the other ends but it does come wirh a connecter that connects to the factory sending unit. Nice so I don't have to wire the other end! 
Sucks how much junk you have to go through to get something that works correctly.
Are you talking about at the bottom of the tray?
I hadn't noticed before but maybe.
I've always put one on, they quiet the pump down and the pumps seem to last. Plus you shouldn't usually be running your tank in the bottom 1/4 anyway, as the fuel cools the pump, that's more important than whether you have a sleave or not.
As, did you use a prefilter sock? I think that's important for pump life, those tiny gearotors don't like debris.
