What causes both cam cover seals and the oil pressure switch to leak on a 2003 Cadillac CTS?

well your car is too old cause you need to change those seals every 2 years


the main problem is that you dont change your oil when it has to be changed so it gets dirty and will effect your sealWhat causes both cam cover seals and the oil pressure switch to leak on a 2003 Cadillac CTS?
Too much oil will NOT increase the oil pressure. To the contrary, the oil will become aerated from windage splash, resulting in a decrease in pressure. If you have the level so high that you get blue smoke from the tailpipe, that's because the piston rings aren't able to seal properly. Nothing to do with the valves. Valve guides will leak if the seals are shot, or if a drainback hole is plugged. The oil being too full could promote leakage in lower parts of the engine, like the oil pan, or main seals.





High crankcase pressure, due to a faulty or clogged PCV valve could promote leaks from many parts of the engine, although still unlikely to cause an oil sender leak. It's part of their job to handle higher oil pressures than crankcase pressure could ever possibly reach. Most likely just a coincidence if they are at the same time, possibly compounded by poor design.What causes both cam cover seals and the oil pressure switch to leak on a 2003 Cadillac CTS?
Have a leakdown test done on the engine,this is a test done with the sparkplugs removed and each cylinder is pressurized and the amount of leakage is measured. If the leakage is greater than 20% then the engine is worn extremely and pressurizing the oiling system more than it can vent,causing a leak to happen. Could just be bad luck on those cam seals.
Specific to that car I don't know. But the root cause is most likely high presure and that is almost definately TOO MUCH OIL. Almost every time. It could also cause the car to smoke as the extreem presure forces the oil past the valves.

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