Hombre S Regular Cab 4WD V6-4.3L (1999)
Coolant: Testing and Inspection
Coolant Concentration Testing
Tools Required
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J 23688 Coolant Tester (Fahrenheit Scale)
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J 26568 Coolant Tester (Celsius Scale)
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Hydrometer (for Dex - Cool© antifreeze concentration only)
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Refractometer
Important: Use a hydrometer in order to test Dex - Cool© antifreeze concentration only. Other solutions may not provide a correct reading. Dex -
Cool© antifreeze is recommended for use around the year. A refractometer also tests the antifreeze protection level unless the refractometer has a
provision for temperature correction, test at the temperature for which the refractometer has been calibrated. If the coolant is warmer or cooler, the
reading may be incorrect. Follow the manufacturer's directions exactly.
1. Before each use of the coolant tester, perform the following steps:
1. Swing back the plastic cover at the slanted end of the coolant tester in order to expose the measuring window and the bottom of the plastic
cover.
2. Wipe the measuring window dry using a tissue or a clean, soft cloth.
3. Close the plastic cover.
Do not remove the clear plastic cap from the tester.
2. Insert the tip of the sample tube into the radiator filler neck.
3. Submerge the sample tube into the coolant solution.
4. Press and release the pump bulb in order to obtain a sample.
