Chevrolet Camaro rough idling issue when stationary on Chevrolet Camaro

Submitted by Vehicle Owner · Jun 23, 2025
Published by RepairPal

Problem overview

Some Chevrolet Camaro owners report experiencing rough idling issues while stationary, which can stem from an imbalance in the engine's air, fuel, and spark components. Problems with the air-to-fuel ratio, particularly when it deviates from the ideal 14.7:1, may contribute to these rough idling symptoms. Additionally, malfunctioning MAF or MAP sensors can disrupt the metering of air entering the engine, leading to further complications. Misfires and spark-related issues are also common culprits behind rough idling. Owners have noted symptoms such as fluctuating idle speeds, stalling, and RPMs dipping below 500, particularly in drive mode after the vehicle has been stationary for a short period. Potential underlying issues may involve intake gaskets, distributor components, spark plugs, plug wires, carburetors, or timing. Other reported symptoms include stalling when cold, stumbling during acceleration, and difficulty starting, which could indicate problems between the IAC and ECM. Regular checks of the float level and the condition of spark plugs are advised, as these can provide valuable insights into the engine's performance and help diagnose the rough idling issue effectively.

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