1. Fuel Pump Issues: This is a very common cause. The fuel pump might be:
* Failed: The pump itself could be worn out or burned out.
* Weak: It might be struggling to deliver sufficient pressure.
* Clogged fuel filter: A clogged filter restricts fuel flow to the pump, causing it to work harder and potentially fail. This is a relatively inexpensive and easy fix.
2. Fuel Pump Relay: The relay is an electrical switch that controls the fuel pump. A faulty relay prevents the pump from turning on.
3. Fuel Pump Wiring/Connectors: A break, short, or corrosion in the wiring harness leading to the fuel pump can interrupt power. Check the connections for corrosion or damage.
4. Inertia Switch: This safety device, often located in the passenger compartment, shuts off the fuel pump in the event of a collision. It might need to be reset (usually a small button to push).
5. Fuel Pressure Regulator: This regulator controls fuel pressure in the fuel rail. A faulty regulator can either cause low fuel pressure or leak fuel, preventing sufficient fuel from reaching the injectors.
6. Clogged Fuel Injectors: While less likely to completely prevent fuel from reaching the engine, severely clogged injectors could restrict flow significantly. This usually manifests as rough running or misfires rather than a complete lack of fuel.
7. Fuel Filter (Again, but more detail): While mentioned above, it's important to check the fuel filter. A completely blocked filter will starve the engine of fuel. These are often located near the fuel tank or fuel pump.
8. Bad Fuel Pressure Sensor: The sensor monitors the fuel pressure and informs the computer. A faulty sensor might send the wrong information, but usually doesn't completely shut off fuel delivery.
9. PCM (Powertrain Control Module) Issues: While less common, a problem with the PCM (the car's computer) could prevent it from sending the signal to activate the fuel pump. This would require advanced diagnostics.
Troubleshooting Steps (in order of ease):
1. Check the fuel filter: This is the easiest and cheapest thing to check first.
2. Check the fuel pump relay: This is usually straightforward to locate and test.
3. Listen for the fuel pump: Turn the ignition key to the "on" position (without starting the car). You should hear a brief humming sound from the fuel pump (near the fuel tank). If you don't, the pump or its relay might be faulty.
4. Check the inertia switch: Locate and reset this switch if needed.
5. Inspect the fuel pump wiring and connectors: Look for any signs of damage or corrosion.
If you're not comfortable performing these checks yourself, it's best to take your Contour to a qualified mechanic. They have the tools and expertise to diagnose and repair the fuel delivery system effectively. Providing them with the information about what you've already checked will help them pinpoint the problem more quickly.
