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2007 Ford F-150 XL 5.4L No Start
High miles truck ran fine but would not start later cold. I suspect ignition switch problem. We removed plugs, old, dirty. We double checked fuel pressure, spark, injector pulse from ECU. Good. We removed B1 and B2 oxy sensors to check for excessive back press...
Summary posted 11/4/2016
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Related Documents & Media | VIN | 1FTPF12577 |
| Engine | 5.4 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | No Start |
| Occurs | Always |
| Misc. | Xlt: 2WD |
Trouble Codes
| U1950 | communication bus fault UART Base Protocol |
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Vehicle Data
2007 Ford F-150 XL
| VIN | 1FTPF12577 |
| Engine | 5.4 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | No Start |
| Occurs | Always |
| Misc. | Xlt: 2WD |
Trouble Codes
| U1950 | communication bus fault UART Base Protocol |
Video