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2001 Ford F-150 King Ranch 4.6L Excessive Emissions, MIL Lamp on
This seemed to be easy but I have not fixed the P0401. The first test was to put a vacuum pump on the egr valve and apply vacuum, the engine does not die. The idle is a little lower. So it has a flow problem. I removed the EGR valve, tested ok, cleaned it. It ...
FIX posted 9/21/2007
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Message Closed w/FIX
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Related Documents & Media | VIN | 1FTRW07W71 |
| Engine | 4.6 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / SEFI |
| Emissions | OBD-II Compliant |
| Symptoms | Excessive Emissions, MIL Lamp On |
| Occurs | Under Load |
Trouble Codes
| P0401 | EGR System Insufficient Flow Detected |
| P1408 | MAP Sensor Circuit Malfunction |
Message Closed w/FIX
Vehicle Data
2001 Ford F-150 King Ranch
| VIN | 1FTRW07W71 |
| Engine | 4.6 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / SEFI |
| Emissions | OBD-II Compliant |
| Symptoms | Excessive Emissions, MIL Lamp On |
| Occurs | Under Load |
Trouble Codes
| P0401 | EGR System Insufficient Flow Detected |
| P1408 | MAP Sensor Circuit Malfunction |
Video