While replacing my Fuel Pump on my 1997 S10 Blazer, I broke a part that is attached to the top of the tank, near the front.
It has a vacume hose going into it, looks like a pressure sensor valve.
Now, my Check Engine light is on.
No one anywhere seems to know what this part is.
Can anyone help me out with the name of this part, and where I can buy a new one?
It clicks into the top of the Fuel Tank, top, near the front, and has a small Vacume hose running into it.

 

THe Fuel Tank Vent Valve part number is stamped right on it.. I replaced mine because i did the same thing. Cost was $22 at my local dealer which had it in stock .. You could go to www.gmpartsdirect.com and enter the part number if you want to go that route but it was the same price when you figure the shipping...

 

i just replaced mine u have to go to a dealership and ask for a fuel tank valve vent theres 2 different valveone of them is black and u can remove it from the tank the other type its snaped into the tank and u cannot remove it they are gonna tell u that u have to buy the whole tank that comes with it