I have a 1998 Toyota Celica GT that has a horrible oil leak. It will go through about 3 quarts of oil a week. It is not the valve cover. It appears to be coming from left rear of engine.
Someone said that it could be leaking from the oil pump. I go through spark
plugs every 6 months. What could be causing this?
Look at the oil cooler and lines to/from it first.
If the plugs are oil fouling the it is not the oil pump, things that can cause this are, PCV clean air intake line plugged, worn valve guides and seals, worn out piston rings, severely worn cylinder walls. HTH
An external leak wouldn't affect the spark plugs, so in addition to your external leak you may have bad rings and/or valve guides. A leak down test will let you know if you do.
I swear your post wasn't there while I was typing tennisshoes, lol.
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