Purpose, Function
Ensures vacuum required for braking force to compensate for the decrease in intake manifold vacuum applied to the power brake unit caused by the retard intake valve closing.
Construction
The vacuum pump is installed to the rear housing.

For smooth vane rotation, a single-vane type vacuum pump has been adopted which is equipped with an engine oil lubrication passage.

Operation
Because the vacuum pump is directly engaged with the exhaust camshaft, the vane in the vacuum pump rotates together with the exhaust camshaft, and the vacuum chamber is expanded and vacuum is generated.

Vacuum generation mechanism

Vacuum Pump Removal/InstallationCooling System Service Warnings
WARNING:
Never remove the cooling system cap or loosen the radiator drain plug while
the engine is running, or when the engine and radiator are hot. Scalding engine
coolant and steam may shoot out and cause serious injury. It may also damage
the engine and cooling system.
Tu ...
Quick Release Connector (Emission System)
Purpose, Function
Serviceability has been improved by the easy disconnection/connection.
Construction
The following types of quick release connectors are used.
U.S.A. and CANADA
Except U.S.A and CANADA
Type A
An SST is not used with this type.
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Solar Radiation Sensor Removal/Installation [Full Auto Air Conditioner]
NOTE:
When removing the solar radiation sensor, perform the procedure in the posture
shown in the figure.
1. Disconnect the negative battery cable..
2. Remove the following parts:
a. Front scuff plate (passenger-side).
b. Front side trim (passenger-side).
c. Dashboard ...