* Blown fuse or faulty relay: The fuel pump is controlled by a fuse and a relay. A blown fuse or a bad relay will prevent the pump from receiving power. Check your owner's manual to locate the appropriate fuse and relay. Visually inspect the fuse for a broken filament. You can test the relay with a multimeter or by swapping it with a known good relay of the same type.
* Faulty fuel pump: The pump itself could have failed due to wear and tear, corrosion, or debris in the fuel tank. This is a common problem, especially in older cars.
* Wiring issues: Damaged or corroded wiring between the fuel pump, relay, and fuse can interrupt the electrical circuit. Inspect the wiring harness for any signs of damage, such as fraying, breakage, or corrosion.
* Fuel pump inertia switch: Many Camaros have an inertia switch that cuts power to the fuel pump in the event of a collision. This switch may have tripped accidentally or needs to be reset. Locate the inertia switch (usually under the dash or in the engine bay) and check its status.
* Low fuel level: While less likely to completely stop the pump, a very low fuel level can sometimes prevent the pump from drawing fuel effectively.
* Problems in the fuel tank: A clogged fuel filter, a faulty fuel sending unit, or debris in the tank can prevent the pump from functioning correctly.
* Computer issue (PCM): While less common, a faulty PCM (Powertrain Control Module) can also prevent the fuel pump from receiving the signal to operate.
To troubleshoot further, you should:
1. Check the fuses and relays: This is the easiest and quickest check.
2. Listen for the fuel pump: When you turn the ignition key to the "on" position (but don't start the engine), you should hear a brief hum from the fuel pump. If you don't hear it, the pump may be faulty or not receiving power.
3. Check the fuel pressure: If you have a fuel pressure gauge, you can test the fuel pressure to confirm if the pump is delivering fuel.
4. Inspect the wiring: Look for any signs of damage or corrosion in the wiring harness.
5. Check the inertia switch: Make sure it's properly reset.
If you're not comfortable working on your car yourself, it's best to take it to a qualified mechanic for diagnosis and repair. Attempting to fix a fuel pump problem without proper knowledge and tools can be dangerous.
