Mazda CX-5 Service & Repair Manual: Thermostat
Purpose, Function
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When the engine coolant temperature is low, the thermostat blocks the engine coolant passage between the radiator and engine. As a result, because engine coolant cycles without passing through the radiator, warming is promoted.
Construction
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The thermostat is installed to the rear part of the cylinder head.
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The thermostat has the following parts:
Operation
1. When the engine coolant temperature decreases, the thermostat valve closes and engine coolant circulates without passing through the radiator.
2. When the engine coolant temperature is 80.5—83.5°C, the thermostat valve starts to open and the engine coolant passed through the radiator flows to the engine.
Thermostat 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 ...
Emissions
...
Other materials:
Evaporator Temperature Sensor Inspection [Manual Air Conditioner]
NOTE:
Inspect the evaporator temperature sensor when it is installed to the A/C
unit.
1. Set the fan speed at MAX HI.
2. Set the temperature control at MAX COLD.
3. Set the RECIRCULATE mode.
4. Turn the A/C switch off.
5. Close all doors and windows.
6. Wait for 5 min.
7 ...
Plastic Parts Heat Resisting Temperature [Plastic Body Parts]
Part Name
Code
Material Name
Heat resisting
Temperature°C{°F}
Windshield molding
PVC
POLYVINYLCHLORIDE
95 {203}
Cowl grille
PP
POLYPROPYLENE
...
Positive Crankcase Ventilation (PCV) System
Purpose, Outline
Prevents release of blow-by gas (unburnt gas) into the atmosphere.
The intake manifold vacuum introduces blow-by gas to the intake manifold
via the PCV valve and the ventilation hose.
System Diagram
Structure
The positive crankcase ventilation sys ...
