C 1500 Truck 2WD V6-4.3L VIN W (2001)
proper joint seating.
17. Do not install the cooler line end into the fitting incorrectly.
18. If you cannot position the plastic cap against the fitting, remove the retaining ring from the quick connect fitting. Check the retaining ring and the
tube end in order to ensure neither is bent. Replace the cooler line or the retaining ring if necessary, and reinstall the cooler line per the installation
procedure.
19. For vehicles with 4.31L engines, install the cooling lines to the radiator.
20. For vehicles with 4.3L engines and auxiliary cooling, install the cooling lines to the radiator.