1pbxdjf¶

1 excerpts.

Reddit thread: Found it¶

reddit.com/r/SmartCar/comments/1pbxdjf · p. 1 · Applies to: unknown

Source: r/SmartCar (score 50, 3 comments) Topic: valve cover gasket and spark plug tube seal leak causing misfire Models discussed: unknown Solution status: unclear

Problem: Smart car has had a misfire for 4 months, can't idle without sounding like a Harley Davidson. After changing plugs, running injector cleaner, and replacing ignition coils, found oil in the spark plug and coil of the misfiring cylinder.

Solution: Valve cover gasket and spark plug tube seals are leaking oil into the cylinder. Top commenter pulled the engine by removing the cradle (approximately 8 bolts) and replaced all seals and mounts.

Key facts: - Oil found in spark plug well and ignition coil indicates valve cover gasket/spark plug tube seal failure - OP changed spark plugs, injector cleaner, and ignition coils unsuccessfully before finding root cause - Engine removal via cradle method reported as feasible DIY job with approximately 8 bolts - Commenter successfully replaced all seals and mounts over summer using cradle removal approach