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Leaky oil sensor

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Leaky oil sensor

This bulletin applies to Hyundai Santa Fe and Sonata vehicles equipped with a 3.3L engine. Look for an oil leak at the oil temperature sensor. Verify that the leak is at the sensor’s threaded area. Use of florescent dye can be used to isolate the leak.

Remove the sensor using a 19 mm deep-well socket. Clean off any loose residue from the sensor threads. Wipe the oil port and surrounding area clean.

Apply a small amount of Permatex High Temperature Thread Sealant #56521 to the sensor threads. Follow the directions on the sealant package to allow sufficient curing time before assembly. Install the sensor and tighten to 22 ft.-lbs. Start the engine and verify the repair.

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