Mitsubishi Galant Rough Idle
Learn if it's a simple fix or time to seek out a trusted technician.
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What are common reasons my Mitsubishi Galant has a rough idle?
While there are a variety of reasons your Mitsubishi Galant 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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Related Mitsubishi Galant Questions
See what others are asking about their Mitsubishi Galant. Get answers from RepairPal's community of auto experts and enthusiasts.
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Related Mitsubishi Galant Problems
Find the most common driver-reported problems that are to blame when a Mitsubishi Galant has a rough idle.
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The crankshaft position sensor may fail causing a no start and/or stalling condition. replacement of the failed senso...
Mitsubishi Galant Repairs and Prices
Mitsubishi Galant
Ignition Coil Replacement
$257 - $292
Mitsubishi Galant
Spark Plug Replacement
$90 - $119
All costs based on RepairPal Fair Price Estimate™ averages. Actual prices may change depending on final diagnosis.
Mitsubishi Galant 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
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