GMC Acadia engine oil leak suspected head gasket issue due to high pressure from PCV system on GMC Acadia

Some GMC Acadia owners report experiencing engine oil leaks potentially linked to head gasket issues caused by high pressure from the PCV system. Common causes of these oil leaks include worn-out drain plugs, damaged gaskets, and failures in oil system components. Symptoms of a blown head gasket may manifest as excessive oil consumption, poor idling, and bluish-white exhaust emissions. Owners should be aware that a blown head gasket can lead to the dangerous mixing of oil and coolant, necessitating immediate attention to avert further engine damage. Signs such as persistent white or gray smoke from the tailpipe can also indicate performance issues related to a blown head gasket. Prompt diagnosis is crucial, and diagnostic tests like a compression test can help identify these issues. If an oil leak is suspected due to a head gasket problem, it is advisable for owners to cease driving the vehicle and utilize tools like a combustion leak tester or OBD-II code scanner for accurate diagnosis.