* Ignition System Issues: Worn spark plugs, spark plug wires, distributor cap (if equipped), or the ignition coil itself can cause misfires, leading to rough running and shaking. Misfires will often trigger the check engine light.
* Fuel System Problems: A clogged fuel filter, faulty fuel pump, or problems with fuel injectors can restrict fuel delivery, resulting in rough idling and poor performance. This can also cause a check engine light.
* Mass Airflow Sensor (MAF) Sensor: This sensor measures the amount of air entering the engine. A faulty MAF sensor can send incorrect information to the computer, leading to a rich or lean fuel mixture, causing rough running and potentially triggering the check engine light.
* Throttle Position Sensor (TPS): A faulty TPS can cause erratic idling and poor throttle response. Similar to the MAF sensor, it can result in improper fuel mixtures.
* Vacuum Leaks: Leaks in the intake manifold or vacuum lines can disrupt the engine's air/fuel mixture, leading to rough running and possibly a check engine light.
* Transmission Problems: While less likely to directly cause a check engine light, transmission issues *can* cause shaking, particularly in reverse or drive. This is especially true if the shaking is more pronounced at lower speeds or during gear changes. Transmission problems are a separate issue from the engine problems, but it’s worth investigation.
* Engine Mounts: Worn-out engine mounts can allow the engine to vibrate excessively, causing a noticeable shake. While this wouldn't directly trigger the check engine light, it's a possibility.
What You Should Do:
1. Get the Diagnostic Trouble Codes (DTCs) Read: The check engine light stores diagnostic trouble codes that pinpoint potential problems. Use an OBD-II scanner (available at auto parts stores) to read the codes. This will give you a much better idea of where to start.
2. Consult a Mechanic: Once you have the DTCs (or even without them), take your Camaro to a qualified mechanic. They have the tools and experience to diagnose the problem accurately and perform the necessary repairs. Trying to fix this yourself without proper knowledge could lead to further damage or injury.
Ignoring the problem could lead to more significant and costly repairs down the line. Addressing the issues promptly is recommended.
