1999 Toyota Tacoma Repair Question
Topics covered: Air filter, Engine, Piston.
Mileage: 150,000 miles.
Mileage: 150,000 miles.
Asked on April 19, 2011
Air filter
Why is there oil in my engine air filter
Asked by tonyjames1202Answer
Replied on April 19, 2011
That is usually the result of excessive pressure in the crankcase. This could be due to a PCV system not working properly to remove pressure or there is excessive piston ring wear creating more pressure than the PCV can handle.
