Question about 2004 Mitsubishi Endeavor
The story you are getting from the dealership sounds very strange. Contrary to what the dealer states the oil pan threads do not wear out over time or the quantity of oil changes. The oil pan threads will strip (be damaged) if the oil plug is tightened too much (too much torque is applied) when installing the plug.
On all cars and Mitsubushi's I have seen the oil pan plug is sealed from leaking oil with a metal or composite washer. The washer is installed on the plug and seals between the plug head and pan. The treads of the plug do not seal the pan as the washer serves this purpose. In most cases it is recommended this washer be replaced (a dollar or less) with every oil change but most people don’t. Have never seen a car that used only the treads to do the sealing.
It is possible someone has over tightened the plug at least once or many times leading the to the threads being stripped. If all your oil changes were at a dealer, then this damage was done by mechanics at the dealer. The other question is if the same dealer did your changes over a year (how many changes have been done?), why didn’t they bring this up before? Oil pan plugs do not just go bad, the pan threads fail because the plug is over tightened
but yes this is definetly possible in both the sense of the oil dran plug or the bolts that connect the oil pan to the engine block. Now if you mean the bolts that connect the oil pan to the engine block its only possible if the oil pan has been removed and someone put the bolt back in crossthreaded it or over tightened them. It couldnt so much happen from normal vibration, it would be a human error problem. and as for the drain plug that was covered above.
If you need further explanation on this problem please feel free to follow up with a comment and i will assist you from there. If this assisted you please feel free to rate it. Thanks, Midwest-tek
Posted on Aug 27, 2010
Anythings possible. why cant it be repaired with an insert?
Posted on Aug 27, 2010
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Posted on Jan 02, 2017
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