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Chevrolet S10 Rough Idle

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

What are common reasons my Chevrolet S10 has a rough idle?

While there are a variety of reasons your Chevrolet S10 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 Chevrolet S10 Questions

See what others are asking about their Chevrolet S10. Get answers from RepairPal's community of auto experts and enthusiasts.
Change all spark plugs, plug wires, distributor, bug, vaccum hoses, egr, pcv firing order is correct. when it starts ...

Related Chevrolet S10 Problems

Find the most common driver-reported problems that are to blame when a Chevrolet S10 has a rough idle.
The egr valve may stick open causing a rough idle and the check engine light light to illuminate. our technicians tel...
The spark plug wire rubber boots may get soaked with oil, causing a misfire or rough idle.
Chevrolet S10 Repairs and Prices
All costs based on RepairPal Fair Price Estimate™ averages. Actual prices may change depending on final diagnosis.

Chevrolet S10 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
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