- Dead battery:
Test your battery's voltage using a multimeter. If it's below 12.6 volts, it may need to be replaced. Alternatively, try jump-starting the car to see if that cranks the engine.
- Faulty starter:
If the starter motor is not receiving enough power, it may not engage and rotate the engine. Check the starter solenoid (for older models) or the starter relay for damage or corrosion and replace as needed.
- Faulty ignition switch:
The ignition switch completes the circuit between the battery and ignition system, allowing the starter to receive power. If the switch is faulty, it may not make proper contact and prevent the car from starting. Try turning the key back and forth several times and see if that allows it to start. If not, the switch may need to be replaced.
- Fuel problems:
Check your fuel level and ensure the fuel pump is functioning correctly. If the fuel pump is not working properly, it may not provide the engine with enough fuel to start. Additionally, a clogged fuel filter could also prevent the engine from receiving the necessary fuel.
- Spark plug issues:
Worn-out or fouled spark plugs can lead to ignition problems and difficulty in starting the car. Inspect the spark plugs and replace them if needed.
- Engine Timing:
If your car's timing chain or timing belt has snapped or jumped, it can prevent proper engine operation. This condition typically requires more extensive repair by a qualified mechanic.
- Security System:
If your Cavalier is equipped with a security system, a malfunction or a fault in the system can prevent the car from starting. Some vehicles have anti-theft mechanisms that can immobilize the engine if it doesn't recognize the original key or if the system is triggered. Check your vehicle's documentation or consult a professional for assistance.
Remember, if you're unsure about diagnosing and fixing the problem, it's always best to take your Chevy Cavalier to a qualified mechanic or an authorized repair shop for proper evaluation and repair.
