Mazda Mazda3 Rough Idle

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

What are common reasons my Mazda Mazda3 has a rough idle?

While there are a variety of reasons your Mazda Mazda3 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 Mazda3 Questions

See what others are asking about their Mazda Mazda3. Get answers from RepairPal's community of auto experts and enthusiasts.
We had to unhook battery for something and now car stalls when i have to slow or stop at lights. runs low idle n dies...
In any gear, at any rpms, at any engine temperature, if i apply the accelerator normally, the car bucks violently. i ...

Related Mazda Mazda3 Problems

Find the most common driver-reported problems that are to blame when a Mazda Mazda3 has a rough idle.
A low speed stall when the throttle pedal is slightly pressed and released may mean the engine control module (ecm) n...
Mazda Mazda3 Repairs and Prices
All costs based on RepairPal Fair Price Estimate™ averages. Actual prices may change depending on final diagnosis.

Mazda Mazda3 Rough Idle Repair Symptoms

A failing ignition coil will create misfires in the engine, and lead to hesitation, extreme power loss, engine stalling, poor fuel mileage, and illumination of the check engine ...Read More
As we discussed, spark plugs are necessary for any gasoline engine to run. When they fail, the engine is in a constant state of attempting to ignite air and fuel, but cannot. Th...Read More