Hoses are frequently overlooked in normal maintenance. Both upper and lower radiator hoses and all heater hoses should be checked for deterioration, leaks and loose hose clamps at every tune-up. Check the hoses by feel; they should be pliable. Any hose that feels hard or brittle should be replaced as soon as possible (replace the clamps also). In any case, replace radiator hoses as necessary every two years or 30,000 miles.
REMOVAL & INSTALLATION
See Figures 1 and 2
- Drain the radiator as detailed later in this section.
- Loosen the hose clamps at each end of the hose to be removed.
- Working the hose back and forth, slide it off its connection and then install a new hose if necessary.
- Position the hose clamps at least 1 / 4 in. (6mm) from the end of the hose and tighten them.
Old hoses have a tendency to remain stuck to the outlets after the hose clamps are loosened. If this is the case, slice the ends of the old hose with a utility knife or single-edged razor blade. Always make sure that the hose clamps are beyond the bead and placed in the center of the clamping surface before tightening them.