Honda Pilot: Cooling System Description - Cooling Circuit

Overview

The coolant system uses a liquid cooling pressure circulation type, which is a bottom bypass system with a thermostat located at the water inlet side.

Cooling Circuit

Thermostat closed:

6-Speed A/T

9-Speed A/T

Thermostat opened:

6-Speed A/T

9-Speed A/T

Cooling Control Spacer

By inserting a resin spacer into the water jacket of the cylinder block, the water flow of the parts with high piston thrust force is restrained causing a temperature increase of the bore wall. The piston clearance of the sliding parts of the piston is enlarged by the temperature-holding effect of the water jacket; the reduced friction results in improved fuel efficiency.

Cooling Fan Controls System Description - OverviewCruise Control System Description - Overview