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Idle

How I Smooth Out a Car That Idles Rough When Cold

How I Smooth Out a Car That Idles Rough When Cold

When you start your car on a cold morning and the engine shakes, vibrates, or runs unevenly while sitting at idle (around 600-800 RPM), you're dealing with a combustion problem. One or more cylinders

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High Car Engine Idle RPM: What's Normal, What's Not

High Car Engine Idle RPM: What's Normal, What's Not

Your engine is sitting at a stoplight revving at 1200 RPM when it should be idling smoothly around 700-800 RPM. You can hear it running too fast, your tachometer needle is higher than normal, and the

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RPM Dropping While Idle: 5 Fixes That Work

RPM Dropping While Idle: 5 Fixes That Work

Sitting at a red light, you notice your tachometer needle dipping down, the engine stumbling, maybe even shaking the steering wheel. Your RPM drops from the normal 700-800 range down to 500 or lower,

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