Engine Coolant Leakage Inspection[L3 With Tc] - Mazda CX-7 2007 Workshop Manual

7. Refill the engine coolant from the radiator filler neck until it is close to the top of the radiator filler neck.
8. Refill the engine coolant into the coolant reserve tank up to the FULL mark on the tank.
9. Install the cooling system cap.
Caution
• If the water temperature gauge rises too high, stop the engine and decrease the engine coolant
temperature to prevent overheating. Then, verify the malfunctioning part and repair or replace it.
10. Start the engine and warm up the engine by idling.
11. After the engine warms up, perform the following steps. At this time, be careful of the engine coolant
temperature to prevent overheating.
Note
• If the accelerator pedal is depressed continuously for a specified time, the engine speed may decrease to
the idle speed. This is due to the fuel cut control operation, which prevents overheating, and it does not
indicate a malfunction.
(1) Run the engine at approx. 5,000 rpm for 1 min.
(2) Run the engine at idle for 5 s.
(3) Repeat steps (1), (2) several times.
(4) Operate the heater at the maximum temperature and airflow, and verify that hot air blows from vent.
12. Stop the engine, and inspect the engine coolant level after the engine coolant temperature decreases. If it is
low, repeat steps 7— 11.
13. Inspect for engine coolant leakage. (See 01-12-6 ENGINE COOLANT LEAKAGE INSPECTION[L3 WITH TC].)
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ENGINE COOLANT LEAKAGE INSPECTION[L3 WITH TC]

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.
• 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.
• When you are sure all the pressure is gone, press down on the cap using the cloth, turn it, and
remove it.
1. Inspect the engine coolant level. (See 01-12-3 ENGINE COOLANT LEVEL INSPECTION[L3 WITH TC].)
2. Remove the cooling system cap.
3. Install the SST and a radiator cap tester to the
radiator filler neck.
4. Apply pressure using the radiator cap tester.
Caution
• Applying more than 142.2 kPa {1.45 kgf/
2
cm , 20.6 psi} can damage the hoses,
fittings, and other components, and
cause leakage.
Pressure
142.2 kPa {1.45 kgf/cm
5. When pressurizing the cooling system, verify that the pressure is maintained.
• If the gauge needle drops, it may indicate water leakage. Repair or replace the applicable part.
End Of Sie
WM: COOLING FAN MOTOR
01-12–6
COOLING SYSTEM [L3 WITH TC]
2
, 20.6 psi} [1 min]
49 9200 145
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