Q about inside of Blazer fuel tank?

[Aarons90Blazer]

https://flic.kr/p/2pxwWWs

I dropped my tank today to check some stuff and drain the gas...I dont know what the black plastic tub thing does inside the tank...but I noticed two of the bolts that hold it down had broken through the bottom plastic thing. Would this affect anything or cause any problems of any kind...Or am I good?

Thanks guys!

 

[nvrenuf]

I don’t know that it’s what you’re looking at but I know there is a baffle inside TBI tanks to help keep the pump submerged in fuel.

 

[Wes Harden]

that plastic tub is a baffle used to keep fuel from flowing away from the electric pump pick up. When the Tbi system truck were new, I a warranty job the truck would back up all day long. As soon as you started forward it would die. That bucket in the tank was loose and going forward it block the pump inlet and kill the truck. Needless to say took a minute to figure out what was happening no codes for that lol

 

[Aarons90Blazer]

So with those two plastic parts broke I should still be good unless it comes completely detached?

 

[JT88K5]

Seems to be an issue. The baffle in my original tank let loose, broke the float but didn’t seem to affect driving. After ~4 years on the replacement tank and new pump and sending unit, my fuel guage is jumping around a bit. I’m wondering if the baffle isn’t loose again. Loudest fuel pump known to man is currently installed, you can hear it running with the engine at idle. Don’t have part numbers, had my mechanic install it during inspection.

 

[dyeager535]

Yes, factory design is the best in terms of effectiveness, but they don't last. Obviously plastic won't last forever. No clue if ethanol is what put the nail in the coffin of most of them or not, seemed to be a bunch of them going bad seemingly after ethanol got more common, and now you don't hear about them failing that often, probably because most have already failed.