Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSLINCOLN2009TOWN CAR SIGNATURE LIMITED, 4.6 VREPAIR AND DIAGNOSISQUICK LOOKUPSDTC INDEXFUEL SYSTEM DTCS
2009 Lincoln Town Car Signature Limited, 4.6 V
Fuel System DTCS
2009 Lincoln Town Car Signature Limited, 4.6 VSECTION Fuel System DTCS
EVAPORATIVE EMISSION (EVAP) SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Perform Test |
|---|---|---|
| P0446 | Evaporative Emission System Vent Control Circuit | Go to Pinpoint Test A under PINPOINT TEST . |
| P0451 | Evaporative Emission System Pressure Sensor/Switch Range/Performance | Go to Pinpoint Test A under PINPOINT TEST . |
| P0452 | Evaporative Emission System Pressure Sensor/Switch Low | Go to Pinpoint Test A under PINPOINT TEST . |
| P0453 | Evaporative Emission System Pressure Sensor/Switch High | Go to Pinpoint Test A under PINPOINT TEST . |
| P0454 | Evaporative Emission System Pressure Sensor/Switch Intermittent | Go to Pinpoint Test A under PINPOINT TEST . |
| P1443 | Evaporative Emission System Control Valve (Low/No Flow) | Go to Pinpoint Test A under PINPOINT TEST . |
| P1450 | Unable to Bleed up Fuel Tank Vacuum | Go to Pinpoint Test A under PINPOINT TEST . |
| P1451 | Evaporative Emission System Vent Control Circuit | Go to Pinpoint Test A under PINPOINT TEST . |
| P260F | Emission System Monitoring Processor Performance | Go to Pinpoint Test A under PINPOINT TEST . |
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.