Kia Sedona Rough Idle

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

What are common reasons my Kia Sedona has a rough idle?

While there are a variety of reasons your Kia Sedona 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.
of the time it's
Vacuum Leak
of the time it's
Spark Plugs
of the time it's
Ignition Coil

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Related Kia Sedona Questions

See what others are asking about their Kia Sedona. Get answers from RepairPal's community of auto experts and enthusiasts.
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Related Kia Sedona Problems

Find the most common driver-reported problems that are to blame when a Kia Sedona has a rough idle.
An engine misfire may develop due to a failed ignition coil. our technicians tell us one coil is used for each cylin...
After the vehicle has been operated with electrical loads (lights, air conditioning), a weak alternator can cause sta...
Kia Sedona Repairs and Prices
All costs based on RepairPal Fair Price Estimate™ averages. Actual prices may change depending on final diagnosis.

Kia Sedona 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