anna_neumann1
Vauxhall Adam knocking combustion
Summary of the thread
A 2018 Vauxhall Adam exhibited a knocking sound under load, reduced power, jerking during acceleration, and smoke, with a diagnostic scan indicating an error. The suspected cause was excessive deposits in the combustion chamber. The solution involved a thorough cleaning and engine tuning adjustments, which resolved the issues, resulting in smooth operation.
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4 comment(s)
anna_neumann1 (community.author)
Indeed, it does! The hesitation is precisely as you describe. Could you elaborate on your experience? Did the symptoms manifest similarly, and what diagnostic steps did you undertake to ascertain the underlying cause?
davidlorenz1
Yep, same symptoms. Best bet is to get it checked at the workshop. Sounds like what I had. They cleaned the engine and it's been fine since. Don't want to risk further damage.
anna_neumann1 (community.author)
The diagnosis confirmed excessive deposits within the combustion chamber. A thorough cleaning, coupled with adjustments to the engine tuning, fixed it. The total cost was 425€. The Adam now runs smoothly.
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VAUXHALL
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ADAM
davidlorenz1
Sounds familiar. I had similar symptoms on my Adam. Does it feel like the engine's hesitating, like a runner hitting a wall?