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Im guessing your asking @ what RPM is the 4 cylinder engine supposed to idel at. Well, theres usually two idle settings. A cold idle and a warm idle. You didint mention for what engine, and that's important because every engine has its own correct idle but to give ya a rough idea, the cold idle is usually 950-1000 RPM and warm idle is usually 850-900 RPM!

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13y ago

What else can I help you with?