Hose Replacement

If you find any one of the above problems existing in the hoses, they should be replaced.

1. Stop engine.
2. Drain coolant. (Refer to "Draining the Coolant System" procedure in this section.)
3. Slit hose end, twist left and right and pull straight off for easy removal.
   Fig 1: Removing Hose

   Courtesy of GENERAL MOTORS CORP.
4. Clean off outlets with clean cloth. Use sandpaper if necessary.
5. Dip ends of new hose into coolant for easier installation.
6. Install clamps on hose (1).
7. Install hose (2) onto nipple (3) until hose contacts hose stop bead (4) White line on hose should be at 12 o'clock position.
8. Slide clamp (1) to within 3 mm (0.12 in.) of the hose end.
9. Install pressure tester on bottle and check for leaks.
10. Fill cooling system. (Refer to "Coolant Replacement" in this section of the service manual.)
    Fig 2: Installing Hose

    Courtesy of GENERAL MOTORS CORP.