I am looking on page 134 of the Haynes repair manual. It has a vehicle emission control diagram. It consists of the Fuel Injection pump, the egr valve, vacuum pump, switchover valve on tome of the valve cover, vacuum control valve on injection pump, orifice, damper, central vacuum connector, and thermo valve 17degrees c.

The switchover valve on top of the valve cover has a cam arm that opens and closes the valve. If this valve has a worn out cam arm - can this affect transmission shifting?

The other recent post about EGR has everyone debating over whether or not to disable the EGR and how it affects engine temperature and gunk in the intake. I have scanned this diagram and would include it in this post but am not sure if this post will allow a JPEG image to be included. I could not seem to get it to work. I don't have a website where I can post the image, but could email it. It is on page 134 of the Haynes manual. Wish I knew of a better manual. This one is very very vague on vacuum system.

willrev@earthlink.net