pettyfog had a thread about it. See here: https://blazerforum.com/forum/2nd-ge...s-fixed-63397/

Included are instructions on how to fix the vent tube.

 

l agree my vent valve on the tank of my 2000 blazer was broken guy glued it , lasted 1 yr. supposedly vent valve can't be replaced . hard to find good tank at junk yard.so gonna see if I can do this , with or without a helper . hope to not drop the tank just lowering it on bike stand/ Jack..Thank you