Mazda Mazda6 Rough Idle

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

What are common reasons my Mazda Mazda6 has a rough idle?

While there are a variety of reasons your Mazda Mazda6 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

Get your Mazda issue diagnosed by a professional

Find a high quality auto repair shop or dealer near you

Related Mazda Mazda6 Questions

See what others are asking about their Mazda Mazda6. Get answers from RepairPal's community of auto experts and enthusiasts.
First code was p0401 (insufficient egr flow) had it cleaned, where there was very little carbon build up. a couple we...
If let idle smooth out before put into gear runs fine. if drive before smooths out drops obd code p0604 (misfire cyl ...

Related Mazda Mazda6 Problems

Find the most common driver-reported problems that are to blame when a Mazda Mazda6 has a rough idle.
A loud ticking noise (hydraulic valve lifter noise) may be heard from the top of the engine, particularly when the e...
Mazda Mazda6 Repairs and Prices
All costs based on RepairPal Fair Price Estimate™ averages. Actual prices may change depending on final diagnosis.

Mazda Mazda6 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