Cooling System Cap Inspection; Coolant Reserve Tank - Mazda CX-7 2007 Workshop Manual

COOLING SYSTEM CAP 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. Clean the cooling system cap and the sealed part.
2. Inspect the cooling system cap for cracks or everted seal.
• If there is any malfunction, replace the cooling system cap.
3. Attach the cooling system cap to the SST and a
radiator cap tester.
4. Hold the cooling system cap downward and apply
pressure gradually. Verify that the pressure is held
stable for 10 s.
• If the pressure is not held stable, replace the
cooling system cap.
Cooling system cap valve opening pressure
112.8— 142.2 kPa {1.15— 1.45 kgf/cm
16.4— 20.6 psi}
End Of Sie
COOLANT RESERVE TANK REMOVAL/INSTALLATION[L3 WITH TC]
1. Remove the charge air cooler duct. (See 01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH
TC].)
2. Remove in the order indicated in the table.
3. Install in the reverse order of removal..
1 Wiring harness
2 Hose
3

Coolant reserve tank

(See 01-12-8 Coolant Reserve Tank Removal Note.)
COOLING SYSTEM [L3 WITH TC]
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COOLING SYSTEM CAP
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01-12–7
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