Section 10-01A: Fuel Tank, Filters, Tubes and Electric Fuel Pump, Gasoline Engines
1996 F-150, F-250, F-350, F-Super Duty and Bronco with Gasoline Engines Workshop Manual
REMOVAL AND INSTALLATION

Fuel and Vapor Return Tubes

 

Removal

 WARNING: MOST CONNECTIONS IN THE EVAPORATIVE EMISSION SYSTEM ARE VERY SECURE. A STRONG PULLING AND SIMULTANEOUS TWISTING ACTION IS REQUIRED TO DISCONNECT. WHEN DISCONNECTION OCCURS, BOTH HANDS COULD SHARPLY AND UNCONTROLLABLY MOVE IN THE DIRECTION OF EACH HAND'S PULLING. BE CAREFUL THAT NO SHARP OR POSSIBLY DAMAGING OBJECTS ARE IN LINE WITH THE DIRECTION OF PULL TO PREVENT PHYSICAL INJURY AND/OR DAMAGE TO THE OBJECTS THAT WILL BE IMPACTED BY THE HANDS WHEN DISCONNECTION OCCURS.

To disconnect a tube from any component, refer to the following:

  1. Securely grip component with one hand, and tube with the other hand as close as possible to connection.

  1. Sharply twist tube along its axis to "break" the temporary bond between tube and component. (No adhesive is used to make tube connections during vehicle assembly, but natural aging of the connections causes a temporary bond to exist.)

  1. It is important to "break free" the tube at its connection point as indicated in Step 2. If the joint is stubborn and the above method does not work, grip the tube with a pair of pliers directly over the joint and twist again.

  1. Once the tube/component joint has been broken, disconnect by securely gripping the component with one hand and hose with the other. Twist tube and at the same time pull apart.

Installation

  1. To reconnect a tube to a component, wet the tube with water and push onto component.

  1. Vapor tubes should be assembled with the minimum engagement shown in the following illustration.