The oxygen sensors in your Silverado’s exhaust system monitor the amount of oxygen in the exhaust gases. If the oxygen sensor detects too much or too little oxygen, it can trigger the check engine light.
2. Catalytic converter problems
The catalytic converter in your Silverado converts harmful pollutants in the exhaust gases into less harmful ones. If the catalytic converter is damaged or not working properly, it can trigger the check engine light.
3. Spark plug problems
The spark plugs in your Silverado ignite the fuel in the engine’s cylinders. If the spark plugs are worn out or damaged, they can cause misfires, which can trigger the check engine light.
4. Coil pack problems
The coil packs in your Silverado supply the spark plugs with electricity. If the coil packs are not working properly, they can cause misfires, which can trigger the check engine light.
5. Fuel injector problems
The fuel injectors in your Silverado spray fuel into the engine’s cylinders. If the fuel injectors are clogged or not working properly, they can cause misfires, which can trigger the check engine light.
6. Mass air flow sensor problems
The mass air flow sensor in your Silverado measures the amount of air flowing into the engine. If the mass air flow sensor is not working properly, it can cause the engine to run too rich or too lean, which can trigger the check engine light.
7. Throttle position sensor problems
The throttle position sensor in your Silverado tells the engine’s computer how far the throttle is open. If the throttle position sensor is not working properly, it can cause the engine to run too rich or too lean, which can trigger the check engine light.
8. Vehicle speed sensor problems
The vehicle speed sensor in your Silverado tells the engine’s computer how fast the vehicle is going. If the vehicle speed sensor is not working properly, it can cause the engine to run too rich or too lean, which can trigger the check engine light.
