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Toyota Yaris Rough Idle

Learn if it's a simple fix or time to seek out a trusted technician.

What are common reasons my Toyota Yaris has a rough idle?

While there are a variety of reasons your Toyota Yaris has a rough idle, the most common 3 are a vacuum leak, an issue with the spark plugs, or a problem with the ignition coil.
34%
of the time it's
Vacuum Leak
21%
of the time it's
Spark Plugs
15%
of the time it's
Ignition Coil

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2009 yaris . car idles rough and has strong gas smell. been to dealership twice and has not found a problem with it...
Toyota Yaris Repairs and Prices
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Toyota Yaris Rough Idle Repair Symptoms

A failing ignition coil can create several symptoms: Check engine light comes on Engine runs poorly or stall Increased emissions Reduced fuel economy Car won’t start I...Read More
When spark plugs fail, the engine will struggle. The check engine light will come on, and it may appear either solid or flashing. The driver would likely notice one or more of t...Read More