I'm wondering if I could get any help or direction on a 2002 Chevy impala that runs fine and drives fine until it gets to 80km per hour then it starts slowing itself down.
FYI this is a car I'm possibly looking at buying.​​​​

 

What is the vin or license plate and state. I have a program that can help diag this issue.

 

Hello maybe you can help me. Trying to find the part name so I can replace it. 1967 Chev Impala 396 air cleaner valve that connects to the right side valve cover with a hose which catches the excess fumes. Its a plastic piece with a hose connector. Cant find it the 1967 parts book.

 

You may try calling this place-

https://www.classicindustries.com/sh...em/pcv-valves/

https://momcp.com/product/1967-camar...v-valve-hoses/ As it looks as though they might have something in stock.
Also
https://www.classicchevy.com/air-and...w=grid&start=0

This may be a good avenue and they might be able to help pinpoint the PVC valve.

Hope this helps, and I'll keep looking.