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GMC Suburban 1500 Rough Idle

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

What are common reasons my GMC Suburban 1500 has a rough idle?

While there are a variety of reasons your GMC Suburban 1500 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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GMC Suburban 1500 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
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