2000 montana

2000 PONTIAC MONTANA
Avatar
RSARNOL
  • MEMBER
  • 1 POST
Our montana I think has California emissions on it, there's a part that recently broke and no repair shops in our area are able to identify this item. Other friend of ours with montanas of the same year cars don't have this part on them either. It's a small round "thing" located up front directly in front of the valve cover. It has a metal flex tube that bolts to the bottom and then runs into the manifold. Also has a small vacuum line attaching to a plastic nipple on top of it, and a lorger rubber tibe running out the side. It ran horribly, bucking continously, I took this mystery part off only to see that inside it is a small metal plate that apparently broke loose from a mounting place. After taking this "thing" off completely it runs great, sounds loud but won't pass inspection. There's no pics or reference to it in the repair manual.
Aug 16, 2007 at 8:59 PM
Advertisement
Avatar
SERVICE WRITER
  • ASE Certified Mechanic
  • 9,123 POSTS
  • ASE Certified Mechanic
Please post a few pics of it and I'll see what I can do. In the meantime, look at the diagram:


https://images.2carpros.com/forum/automotive_pictures/30961_montana_1.jpg

Aug 17, 2007 at 5:38 AM
Avatar
CLY
  • ASE Certified Mechanic
  • 308 POSTS
  • ASE Certified Mechanic
The mystery part is a secondary air injection check valve. Your van will have one for bothsides of the engine. The one in the front will be for bank 1 and the one in the rear is for bank 2.

Hope this helps....


Cly
Aug 17, 2007 at 5:55 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.