Just so the OP knows.............that conclusion on the PCV hose being bad means it has to be bad all the time is wildly incorrect. Have seen them bubblegum up the rubber to suck a soft hole in to leak then they reseal to run fine for maybe a month. BTDT. Until the next time. It has happened to countless others here onsite that swore the same thing.
I chased one such leak for over a year after it happened several times and after each the car went back to running fine for a long time. Never found it until it got bad enough to finally quit sealing back up. The hose rubber was like soft glue or bubblegum. Also, hose tears can suck apart to leak badly then the flap next time does not open up, looking at chaosian chance there, in no way is there a rule saying the leak has to be constant.
Car certainly has the age to do it, most do it before then.
Fix the driver first, then fixing the car becomes so much easier..........
Last edited by amc49; 05-05-2019 at 04:20 AM.