The vacuum line that fell off the heater hose on your 1995 Ford Explorer connects to the purge valve solenoid, which is located on the passenger side of the engine compartment, near the firewall. The purge valve solenoid is a small, cylindrical device with two vacuum ports and an electrical connector.
To reconnect the vacuum line, simply push it onto the appropriate port on the purge valve solenoid. The port is usually labeled with the letter "P" or "Purge."
If the vacuum line is damaged or cracked, you will need to replace it. Vacuum lines can be purchased at any auto parts store. To replace a vacuum line, simply cut the old line off with a utility knife and then push the new line onto the appropriate ports.
