2008–2014 VW P0171 or P119A With an Oil Leak? Smoke-Test the Crankcase Safely

Connect VW P0171/P119A and oil leakage through a known-good crankcase-vacuum comparison and a carefully limited rear-main-seal smoke test.

Connect VW P0171/P119A and oil leakage through a known-good crankcase-vacuum comparison and a carefully limited rear-main-seal smoke test.

Use the gas-station timeline, Ford TSB 16-0075 scope, purge-state evidence, and controlled smoke testing for hard starts after refueling with P1450 or P0456.

Seal an intake opening with the AUTOOL inflatable smoke-test adapter, connect the smoke hose safely and distinguish an adapter leak from a vehicle-system leak.