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1999 Ford F-350 Super Duty Lariat 7.3L Poor Fuel Economy, lack of power
Posted to Ford Driveability on 2/2/2005 8 Replies

This is my first time here so bare with me. Please help I am limited in knoweldge of a diesel. Here we go, The truck came in for a lack of power while pulling a load and horrible fuel mileage. The truck has a history of problem and the original owner sold vehi...

8 Replies Received (View Replies)

  Related Documents & Media  1999 Ford F-350 Super Duty Lariat

 
Message Closed w/Summary

car Vehicle Data

1999 Ford F-350 Super Duty Lariat

VIN 1FTWX33FXX
Engine7.3 L / 8 cyl / DIESEL
Trans6-speed Standard
DeliveryFI / Turbo Diesel
EmissionsOBD-II Compliant
SymptomsPoor Fuel Economy, Lack of Power
OccursUnder Load, Cruise

Trouble Codes

P0470Exhaust Backpressure Sensor Circuit Malfunction
P0471Exhaust Pressure Sensor 1 Performance
P0476Exhaust Backpressure Regulator Malfunction (Self Test)
Message Closed w/Summary

car Vehicle Data

1999 Ford F-350 Super Duty Lariat

VIN 1FTWX33FXX
Engine7.3 L / 8 cyl / DIESEL
Trans6-speed Standard
DeliveryFI / Turbo Diesel
EmissionsOBD-II Compliant
SymptomsPoor Fuel Economy, Lack of Power
OccursUnder Load, Cruise

Trouble Codes

P0470Exhaust Backpressure Sensor Circuit Malfunction
P0471Exhaust Pressure Sensor 1 Performance
P0476Exhaust Backpressure Regulator Malfunction (Self Test)