Diesel Glow Plug Tester
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FREE check engine light code reading! Most vehicles, most Advance locations. See store for details.

OTC Diesel Glow Plug Tester

Part No. OTC3673 Warranty Details  
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Glow plug tester allows for testing without removing glow plug from engine. Powers the glow plug to test the plug in its operating state. Test much more accurate than a cold resistance test, which can miss short circuits. Tester uses a current measurement to accurately determine the proper operation and check for short circuits Glow plug tester provides fault detection through LED's for a quick analysis; Short Circuit, Over Current, Normal Operation, Open Circuit/Under Current.
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