Tacoma Extra Cab 4WD L4-2.7L (3RZ-FE) (1999)
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Coolant: Testing and Inspection
INSPECTION
1. CHECK ENGINE COOLANT LEVEL AT RADIATOR RESERVOIR
The coolant level should be between the "L" and "F" lines. If low, check for leaks and add coolant up to the "F" line.
2. CHECK ENGINE COOLANT QUALITY
a. Remove the radiator cap.
WARNING: To avoid the danger of being burned, do not remove the radiator cap while the engine and radiator are still hot, as fluid
and steam can be blown out under pressure.
b. There should not be any excessive deposits of rust or scales around the radiator cap or radiator filler hole, and the coolant should be free from
oil. If excessively dirty, replace the coolant.
c. Reinstall the radiator cap.
