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2001 Ford F-150 Lariat 5.4L Poor Idle Quality, Surge, MIL Lamp on
Posted to Ford Driveability on 10/3/2012 16 Replies

Replace intake manifold for massive coolant leak near cyl 1 at crossover (towed in). Vehicle sets p0171 and p0174 after repairs. Fuel trims are high at idle -AND- cruise. Tested fuel pressure, volume and quality-OK. Customer reports no symptoms prior to coolan...

16 Replies Received (View Replies)

  Related Documents & Media  2001 Ford F-150 Lariat

 
Message Closed w/FIX

car Vehicle Data

2001 Ford F-150 Lariat

VIN 1FTRX18L61
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Surge, MIL Lamp On
OccursAlways

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0174Fuel System Too Lean (Bank 2)
Message Closed w/FIX

car Vehicle Data

2001 Ford F-150 Lariat

VIN 1FTRX18L61
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Surge, MIL Lamp On
OccursAlways

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0174Fuel System Too Lean (Bank 2)