Rear Main Oil Seal Replaced in 1995 Camry but still leaks oil is leaking past new seal, Why?

A diagnostic was done and it was confirmed that my rear main oil seal needed to be replaced. I had my rear main oil seal replaced in my 1995 Camry buy my machanic. They stated that oil is pushing past the new main oil seal. They stated that when they open the oil cap they can see oil bubbling out like air is trapped and is compressed some way causing the oil to leak/pushing past the new seal. They stated that all valves and the oil pump is working fine but there is a lot of sludge. What could this be from and how can I resolve it? Will a oil flush possibly stop this? The car has 241,000 miles on it and runs fine. Please helpful answers only!Rear Main Oil Seal Replaced in 1995 Camry but still leaks oil is leaking past new seal, Why?
Could be caused by a blocked PCV system t hat would cause new seals to blow out. The best way to tell is to do a Cylinder Leak down test and see how much pressure from combustion is leaking into the crankcase and blowing out your seals. If its excessive it could be caused by rings, a clogged PCV system or more. As for the sludge the only real way to get rid of it is to rip the engine apart and clean it out. This is usually caused by poor maintenance that caused the oil to stay in a spot inside the engine for an extended period of time and get hot and burned. If it were mine. I would take it to the dealer and have them redo the whole engine that way you can have piece of mind it was done right and a warranty. I still find it hard to believe that a mechanic wouldnt do a Cylinder Leak down test to figure out why the seal is leaking again.Rear Main Oil Seal Replaced in 1995 Camry but still leaks oil is leaking past new seal, Why?
When I first read your question I was thinking you had a scored crankshaft and no seal or flush would fix that. After I read it again I can't help but think that you need to check the PCV valve and it's tubing. Does the car leak more when it's running or with the engine off?
if your engine has sludge in it get it cleaned or replaced, i used to work at a toyota dealer and there is a recall on the 3.0 v6 engines for sludge, and i have seen the four cylinder 5s-fe have sludge problems aswell, all they do is either replace the short block with a new one and clean out the head from the sludge, or put in a engine from a junk yard car that is in good shape.





the sludge problem should be your number 1 concern not a few oil drips from the rear main seal.