Ranger 4WD V6-3.0L VIN U (1997)
Vacuum Harness HVAC: Adjustments
Mini-tube vacuum hoses are used in the vacuum harness assemblies. They provide greater flexibility with less tendency to collapse and are less
susceptible to pinching. Service is easily made using a short piece of standard 3 mm (1/8 inch) ID vacuum hose.
1. Measure length of damaged area of mini-tube vacuum hose.
2. Cut a piece of standard 3 mm (1/8 inch) ID vacuum hose approximately 25 mm (1 inch) longer than the damaged area of mini-tube vacuum hose.
3. Cut off mini-tube vacuum hose on each side of damaged area.
4. Dip mini-tube hose ends in Methyl Ethyl Ketone (MEK). Some paint thinners contain MEK. Check with your paint shop. This solvent will seal
mini-tube to vacuum hose.
5. Insert ends of mini-tube vacuum hose approximately 9 mm (3/8 inch) into ends of standard 3 mm (1/8 inch) service vacuum hose section.
6. Shake repair joint after assembly to ensure solvent is dispersed and vacuum line is not plugged.
7. Use Rotunda Vacuum Leak Tester 014-R1054 or equivalent to test system for a vacuum leak.
