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2004 Ford F-150 Lariat 5.4L Poor Idle Quality, Misfire
Posted to Ford Driveability on 10/13/2013 19 Replies

runs rough at [...] [...] also makes a slight knocking [...] dealer said could be cam phasers/[...] the sensors need at least 14 psi to operate,however the new phasers need less to work.I would like to get any info before ripping into replacement of the sensor...

19 Replies Received (View Replies)

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car Vehicle Data

2004 Ford F-150 Lariat

VIN 1FTPX12584
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / mfi
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire
OccursCold, Hot, Idle
Message Closed

car Vehicle Data

2004 Ford F-150 Lariat

VIN 1FTPX12584
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / mfi
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire
OccursCold, Hot, Idle