Mazda CX-5 Service & Repair Manual: 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 shoot out and cause serious injury. It may also damage the engine and cooling system.
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Turn off the engine and wait until it is cool. Even then, be very careful when removing the cap. Wrap a thick cloth around it and slowly turn it counterclockwise to the first stop. Step back while the pressure escapes.
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When you are sure all the pressure is gone, press down on the cap using the cloth, turn it, and remove it.
1. Disconnect the negative battery cable..
2. Drain the engine coolant..
3. Remove the plug hole plate..
4. Remove the air cleaner, air hose and fresh air duct component..
5. Remove the battery, battery tray and PCM component..
6. Remove in the order indicated in the table.
7. Install in the reverse order of removal.
8. Refill the engine coolant..
9. Inspect for engine coolant leakage..
|
1 |
Lower radiator hose (Thermostat cover side) |
|
2 |
Thermostat cover (See Thermostat Cover Removal Note.) |
|
3 |
Thermostat (See Thermostat Installation Note.) |
Thermostat Cover Removal Note
1. Place rags on the transaxle case around the area under the thermostat cover.
2. Slightly loosen the three
thermostat cover bolts and use the rags to absorb the draining engine coolant.
CAUTION:
-
Do not remove the thermostat cover completely at this time because the engine coolant remaining in the engine will drain out.
3. After the engine coolant stops draining, remove the thermostat cover.
Thermostat Installation Note
1. Install the thermostat with the jiggle pin aligned with the notch of the water outlet.
Thermostat Inspection
1. Remove the thermostat..
2. Visually check that the thermostat valve is closed.
3. Place the thermostat in water.
WARNING:
During inspection, the thermostat and water are extremely hot ...
Thermostat
Purpose, Function
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 ...
Other materials:
PCM
Purpose/Function
High-level driveability and lower fuel consumption have been realized by
controlling the appropriate engine conditions (fuel injection/ignition timing)
according to operation conditions.
Controls each output part based on the signal from each input part.
...
Intake Air Temperature (Iat) Sensor
IAT Sensor No.1
Purpose/Function
Detects the IAT before it passes through the throttle body as basic information
for mainly determining the fuel injection amount.
Detects the IAT before it passes through the throttle body and inputs it
to the PCM as an IAT signal.
Constru ...
Engine Disassembly/Assembly
CAUTION:
When the transaxle is installed, do not suspend the engine. Otherwise, the
SST installation area of the cylinder head may be damaged due to excess weight.
Only suspend the engine after separating the engine and transaxle.
Applying excessive force (force of 100 N {10.2 ...
