Clogged crankcase ventilation systems often are overlooked causes of engine oil leaks. Savvy service personnel keep these systems at the top of their mental checklists for solving oil leaks. I'll ...

As previously reported by GM Authority in April 2022, a class action lawsuit was filed against The General over issues with the 2.4L Ecotec I4 gasoline engine. While this lawsuit is still active, a ...

The PCV (Positive Crankcase Ventilation) system is designed to regulate and remove fumes from the engine crankcase, and to alleviate crankcase pressure which could cause oil leaks or seal damage. The ...

My 1995 Volvo 850 non-turbo (with 160,000 miles) has an oil leak at the rear main seal or RMS, probably because of crankcase pressure. When I remove the dipstick and stick a balloon over the top and ...