Mazda CX-5 Service & Repair Manual: Water Pump

Mazda CX-5 Service & Repair Manual / Engine / Cooling / Water Pump

Purpose, Function

The water pump operates by obtaining drive force from the engine via the drive belt to pump engine coolant.

Construction

The water pump is installed to the engine front.
The water pump consists of the following parts:
A hard plastic shroud impeller has been adopted to the impeller. As a result, leakage loss from the front and back surfaces of the impeller is reduced and the pump efficiency is improved.

Operation

1. The water pump pulley rotates by obtaining drive force from the engine via the drive belt.

2. The impeller with the water pump pulley and shaft connected rotates to pump engine coolant.

Water Pump Removal/Installation

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 ...

Cooling Fan Relay

Purpose, Function The cooling fan relay operates by receiving the signal from the PCM to supply power to the cooling fan motor. Construction The cooling fan relay is installed o ...

Other materials:

Crankshaft Position (CKP) Sensor
Purpose/Function Detects the crankshaft speed as basic information for mainly determining the fuel injection timing and ignition timing. Detects the crankshaft speed and inputs it to the PCM as a CKP signal. Construction Installed on the side of the cylinder block (ri ...

Electric Variable Valve Timing Actuator
Purpose, Function The electric variable valve timing actuator changes the phases of the intake camshaft relative to the crankshaft. As a result, the open/close period of the intake valve is changed, optimized valve timing in accordance with driving conditions is realized, output is i ...

Oil Control Valve (OCV) Removal/Installation
WARNING: A hot engine can cause severe burns. Turn off the engine and wait until it is cool before servicing. 1. Disconnect the negative battery cable.. 2. Remove the plug hole plate.. 3. Remove the ignition coil/ion sensors.. 4. Remove the cylinder head cover.. 5. Remove in ...