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Mitsubishi 3000GT Rough Idle

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

What are common reasons my Mitsubishi 3000GT has a rough idle?

While there are a variety of reasons your Mitsubishi 3000GT 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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To describe the sounds it's kind of a sputtering rumbling sound and lacks power and acceleration like it's running on...

Mitsubishi 3000GT 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