engine shakes at stoplight · rough idling engine
The engine feels rough, shaky or uneven while sitting still (in park or at a stoplight), as opposed to running smoothly.
Note if the check engine light is also on - if so, a code scan will usually point directly at the cause (commonly a lean-mixture or misfire code).
Usually safe to drive short-term, but a rough idle wastes fuel and can worsen into stalling, so get it looked at within a couple of weeks.
Describe your situation more precisely (e.g. exactly when it gets worse, how long it lasts) and get an expanded, personalized breakdown.
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Descriptions are for guidance only and do not replace a workshop inspection. If you are ever unsure whether it is safe to keep driving, pull over in a safe spot.
Engine stalls while driving or idling
SeriousThe engine unexpectedly shuts off entirely, either while idling (at a stop) or, more seriously, while actively driving.
Car vibrates or shakes at idle
WarningThe car shakes or vibrates noticeably while stationary with the engine running (in park or neutral), but smooths out once moving.
Squealing noise right after starting the engine
WarningA high-pitched squeal that happens right when the engine starts, especially on a cold morning, and often fades after a few seconds.
Knocking noise from the engine
SeriousA rhythmic, metallic knocking or tapping sound coming from the engine, often changing pace with engine speed.
