In the engine compartment , on the drivers side , in the brake fluid
reservoir by the firewall ( use DOT 3 brake fluid )
you open the cap that says brake fluid, and then you pour it in
Locate the brake fluid reservoir, and pour brake fluid in until it's at the appropriate level.
Have it cleaned out and flushed immediately
NOTHING
DOT 3 brake fluid , meeting Ford specification ( ESA-M6C25-A ) according to the 2004 Ford Expedition Owner Guide
According to the 2000 Ford Expedition Owner Guide : ( DOT 3 brake fluid ) meeting Ford specification ( ESA-M6C25-A )
Looking under the hood you should find the brake fluid to be in the top right corner.
Pour it into the brake fluid reservoir. It is in front of the brake booster. If you don't know where that is then take it to a service center before you have major problems.
get out your owners manual
It's Possible that your Brake Fluid needs replaced. The Brake Fluid should be replace about every two years. Hope This Helps.
In the brake master cylinder reservoir on the drivers side of the engine compartment near the firewall
usually in small resivoir top of handlebars. On the right hand side and the clutch usually takes brake fluid too if they are hydraulic on the left hand side.