Close

Mercury Mystique Rough Idle

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

What are common reasons my Mercury Mystique has a rough idle?

While there are a variety of reasons your Mercury Mystique 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

Get your Mercury issue diagnosed by a professional

Find a high quality auto repair shop or dealer near you
x

Related Mercury Mystique Questions

See what others are asking about their Mercury Mystique. Get answers from RepairPal's community of auto experts and enthusiasts.
it do it all the time

Related Mercury Mystique Problems

Find the most common driver-reported problems that are to blame when a Mercury Mystique has a rough idle.
If you experience difficulty starting the engine when cold, stalling at idle, or hesitations during acceleration, it ...

Mercury Mystique 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