theobeck47

Seat Toledo Engine Knocking Combustion

My 2002 Seat Toledo with a gasoline engine is experiencing knocking combustion. Symptoms include reduced engine power, jerking when accelerating, and smoke when accelerating. There's also an error stored in the error memory. I suspect deposits in the combustion chamber. Any ideas?

4 comment(s)

Engine knock on a Toledo, huh? Sounds familiar! I had something similar happen with mine – same jerking and power loss. Did you check the knock sensor? Could be faulty. Also, what kind of smoke are you seeing? Blueish, blackish, whitish?

The smoke is blackish. I haven't checked the knock sensor yet, but I will. What was the eventual problem with your Toledo?

Blackish smoke points to rich running – too much fuel. Mine turned out to be carbon buildup in the cylinder heads causing pre-ignition. I tried some engine tuning additives but no luck. In the end, I had to get the heads cleaned. Honestly, I'd get it checked out by someone who knows their stuff. Could save you a headache.

Thanks for the confirmation and advice. I took it to a workshop and they confirmed deposits in the combustion chamber. They cleaned it, and now it runs smoothly. Total cost was 425€.

Join the discussion now: