Just changed the oil in my 2012 Hyundai Santa Fe, V6, automatic transmission, 3.5 liter engine. Now I have a major transmission oil leak coming from top of transfer case, transmission area.

Asked by Jan 26, 2014 at 03:56 PM about the 2012 Hyundai Santa Fe 3.5L Limited AWD

Question type: Maintenance & Repair

It appears as if a quart of transmission oil dumped.  This happened directly after I
changed the oil and started the engine.  I had just accidentally started the car with all
the oil drained, but realized what I had done in a second or two and shut the engine off.  
Then I refilled the oil reservoir and stared the engine once again.  It appears to be
transmission oil, but could it be transfer case oil??? Could this be a malfunctioning
sensor of some sort caused by starting the engine with no oil????

1 Answer

77,995

Check the areas around the oil filter and oil drain plug. Perhaps the new oil filter is defective. Oil filters should be hand tightened only. If you use a wrench you'll over tighten the filter, crush the gasket and it will leak. The drain plug should be tight but not super tight. Same deal about crushing the gasket. HTH. -Jim

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