Gas tank fill pipe/neck & hose replacement?

moneypit

Original poster
Member
Dec 7, 2011
214
New hose is oem GM#15131046 but has a flapper valve inside & old one doesn't? I did have the tank recall done years ago so not sure if this new tank to pipe hose ir current or what?
 

Mooseman

Moderator
Dec 4, 2011
25,310
Ottawa, ON
Seems to be the correct one. It was likely upgraded and the part number superseded.
 

HARDTRAILZ

Moderator
Nov 18, 2011
49,665
I always thought my factory had a flapper, but noticed just a couple weeks ago it did not.
 

Mooseman

Moderator
Dec 4, 2011
25,310
Ottawa, ON
My 02 had one, basically a large ping pong ball, for rollovers, but it was part of the tank's neck, not the tube. If we have a filler cap, why do we need such a thing? Extra safety I guess. I remember a YT video on repairing an early EXT's tank with a broken inlet and it was mentioned that you lose this rollover valve with their fix using brass parts. Maybe later years they moved it to the tube itself.
 

moneypit

Original poster
Member
Dec 7, 2011
214
I got the spectra neck today, really gotta push on that hose to tank to get that hose to seat on that nub/boss up top wtf! I had to lube the other end to neck but of course used overkill which I fought to the end:smile:
 

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