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Geo Prizm Rough Idle

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

What are common reasons my Geo Prizm has a rough idle?

While there are a variety of reasons your Geo Prizm 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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See what others are asking about their Geo Prizm. Get answers from RepairPal's community of auto experts and enthusiasts.
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Related Geo Prizm Problems

Find the most common driver-reported problems that are to blame when a Geo Prizm has a rough idle.
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Geo Prizm Repairs and Prices
All costs based on RepairPal Fair Price Estimate™ averages. Actual prices may change depending on final diagnosis.

Geo Prizm 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