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Even when the water pump is normal, a residue of the engine coolant draining may be found
on the drain hole, the vapour hole and the installation surface of the water pump. If a residue of
the engine coolant draining is found, check the water pump leakage by following method.
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1.Remove the valve timing belt (Refer to GROUP 11E - Timing Belt  ) <4G1>
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2.Wipe off the residue of the engine coolant draining on the water pump.
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3.
| warning |
Make sure that the engine coolant is cold when removing
the radiator cap.
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Remove the radiator cap.
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4.
| caution |
Do not pressures 100 kPa or more.
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Install the radiator tester and pressures at 100 kPa.
5.Hold the pressurized state for 20 minutes, and check that the engine coolant leakage
from the drain hole, the vapor hole or the installation surface of the water pump.
6.Remove the radiator tester, and install the radiator cap.
7.Install the valve timing belt (Refer to GROUP 11E - Timing Belt ) <4G1>
8.Warm up the engine, let it idle for 20 minutes and stop it.
9.After stopping the engine, and check that the engine coolant leakage from the drain
hole, the vapor hole or the installation surface of the water pump.
10.If the engine coolant leakage is found in step 5 or 9, replace the water pump (Refer
to ) <Except for 4G1>, or (Refer to ) <4G1>.
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