GMC Canyon Rough Idle

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

What are common reasons my GMC Canyon has a rough idle?

While there are a variety of reasons your GMC Canyon 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.
of the time it's
Vacuum Leak
of the time it's
Spark Plugs
of the time it's
Ignition Coil

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Related GMC Canyon Questions

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At 80,000 miles the engine is beginning to idle a little rough what should i have checked out
Once the truck is started and starts to warm up it will gradually start to idle better. no engine lights come on and ...

Related GMC Canyon Problems

Find the most common driver-reported problems that are to blame when a GMC Canyon has a rough idle.
The engine may develop a misfire due to worn valve seats. this fault will cause the check engine light to illuminate....
Illumination of the check engine light may be the result of a loose or worn gas cap.

GMC Canyon 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