* Alternator: A failing alternator won't charge the battery. Once the battery's charge is depleted by the car's electrical systems while driving, the car will shut off. This is a very common cause.
* Battery: A weak or failing battery might have enough power to start the car, but not enough to sustain it while driving, especially if the alternator is also having issues.
* Passlock System (Theft Deterrent): The Passlock system prevents the car from starting if it doesn't recognize the correct key. While it's more common to prevent starting, a malfunctioning Passlock system *could* theoretically cause a shutdown while driving in rare cases. This is less likely than alternator or battery problems.
* Fuel Pump: A failing fuel pump might provide enough fuel to start the car but not maintain sufficient pressure while driving under load, leading to fuel starvation and engine shutdown.
* Fuel Filter: A clogged fuel filter restricts fuel flow, causing similar symptoms to a failing fuel pump.
* Crankshaft Position Sensor (CKP): This sensor tells the engine's computer where the crankshaft is. A faulty CKP sensor can cause erratic engine behavior and even stalling.
* Mass Airflow Sensor (MAF): A faulty MAF sensor provides inaccurate air flow readings to the engine computer, leading to poor fuel mixture and potentially a stall.
* Wiring Issues: Damaged or corroded wiring, particularly in the power distribution system, can cause intermittent power loss and stalling.
* PCM (Powertrain Control Module): Though less common, a failing PCM can cause a variety of issues, including stalling. This is usually accompanied by other problems.
Troubleshooting Steps (Don't attempt major repairs yourself unless you have experience):
1. Check the Battery: Have the battery tested at an auto parts store to ensure it's holding a charge and has sufficient cranking amps.
2. Check the Alternator: Have the alternator tested as well. A simple voltage test while the engine is running can often reveal a problem.
3. Inspect Wiring: Look for any obvious signs of damaged or corroded wiring, especially around the battery and alternator.
4. Consult Repair Manuals: A Haynes or Chilton manual for your specific year and model Corvette will have detailed troubleshooting guides.
5. OBD-II Scanner: An OBD-II scanner can read diagnostic trouble codes (DTCs) stored in the PCM. These codes can pinpoint the source of the problem. A professional mechanic can also retrieve and interpret these codes.
It's strongly recommended to take your Corvette to a qualified mechanic for proper diagnosis and repair. Attempting to diagnose and repair these problems yourself without proper knowledge and tools could lead to further damage. The specific cause will depend on the symptoms and a proper diagnostic procedure.
