Car Fix DIY Videos

@jorgeantonini201 says:

Problem: clogged pcv/oil separator
Result: oil fumes and crank case pressures get too high and blow a hole through the pcv diaphragm and/or rear main seal.
Repair: replace one or both as needed.
Knowledge: had to do many of these while I worked at vw, it was a common problem on the 2.0T on the GTI/GLI, Tiguan, Passat etc. Generally the pcv was the only thing needed to be repaired, about every 2 of 3 only needed a pcv valve, that other 3rd car always needed the rear main as well. Sometimes you can hear the diaphragm whistle faintly as it blew the fumes out, the rear main one was harder to detect, almost always needing a smoke machine. I would get the car in the shop, smoke it and if I didn’t CLEARLY see the smoke from the rear main seal, I would make sure to suggest it anyway because it’s a problem(specially with high mileage vehicles if not in the visible history), but always replaced pcv and retested with smoke machine after to verify the rear main wasn’t leaking very little(pretty common, about 1 of every 5 or 6 had to replace the rear main after the pcv anyway).

@dagnabbit3002 says:

Finding a leak with a smoke machine is something I've never even considered, but I will be doing it from here on out. Thank you

@abbsgarage.9676 says:

You got a bad pcv. You gotta to all and the pcv
Im sure the codes appear a while back… But the light was ignored even the real check engine light the epc light…

@ericp9252 says:

Would also replace the pcv valve with the rear main

@Burn_pits says:

You don’t need a smoke machine to find that leak. There is is a trail