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2007 Ford Expedition XLT 5.4L Misfire
Posted to Ford Driveability on 7/20/2012 13 Replies

This Expedition is driving me nuts. It came in with "trying to die at idle" and the owner wanted new plugs and boots. I installed the plugs and find out that the problem is random misfires at idle. The car had a PO300 but it was erased before I got it. I drove...

FIX posted 7/23/2012

13 Replies Received (View Replies)

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car Vehicle Data

2007 Ford Expedition XLT

VIN 1FMFU15547
Engine5.4 L / 8 cyl / GAS
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMisfire
OccursIdle

Trouble Codes

P0300Multiple Misfire Detected