This is a guess , but check fuse # 14 - 15 amp - for ACCESORY DELAY RELAY ( power windows , moonroof , Flip windows )
owners manual
should be in side engin compartment right side by firewall
According to the owners manual there are 2 switches ( for left and right flip out windows ) in the front overhead console that have the word VENT on them
Check your owners manual. If you don't have one copy & paste this link. http://www.genuineservice.com/genuineservice/en/gloveboxresults
You can view the 1997 Ford Expedition owners manual online at : www . motorcraft service . com ( no spaces ) Click on Owner Guides
You can view the 2000 Ford Expedition owners manual online at : www . motorcraft service . com ( no spaces ) Click on Owner Guides
You can view the 2004 Ford Expedition owners manual online at : www . motorcraft service . com ( no spaces ) Click on Owner Guides
The 1998 Ford Expedition owners manual shows ( 5W-30 )
You can locate the radio code, for your 1991 Volvo, by consulting your owners manual. The owners manual should have all of the vehicle codes.
You can view the 2005 Ford Expedition owners manual online at : www . motorcraft service . com ( no spaces ) Click on Owner Guides
Owners manual will assist you
Read your owners manual.