Diagnostic Aids
WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2003 Mercury Sable, 2003 Mercury Mountaineer, 2003 Mercury Marauder, 2003 Mercury Grand Marquis, and 2003 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
Perform this test when directed by QUICK TEST or if directed by other test procedures. This test is used to diagnose:
- Fuel Pressure
- Fuel Supply Lines
- Fuel Filter
- Fuel Injector(s)
- Fuel Pressure Regulator
- Fuel Injection Supply Manifold (Fuel Rail)
- Fuel Rail Solenoid Shutoff Valve(s)
NOTE:
Fuel rail solenoid shutoff valve is also referred to as low pressure solenoid shutoff valve. Fuel tank solenoid shutoff valve is also referred to as fuel tank solenoid valve.