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Problems for specific Ford Expedition years:

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Newest reported 1999 Ford Expedition problems

 

Verified for the Ford Expedition

An illuminated Check Engine Light may indicate that the spark plugs are worn; this will cause intermittent misfire and damage to the coil packs.

15 Reports
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Verified for the Ford Expedition

The mass air flow sensor (MAF) may fail resulting in a rough engine idle, hesitation on acceleration, and/or engine stalling. The Check Engine Light may or may not illuminate. A failed mass air flow sensor will require replacement.

23 Reports
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Reported by bmdouble for the Ford Expedition

humming noise from engine when starting cold. faulty idle air control valve causing noise,can tap on valve and noise will go away. must replace valve to fix.

1 Report
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Verified for the Ford Expedition

There is a technical service bulletin for the V8 engines regarding a possible problem with the spark plug being ejected from the cylinder head, damaging the threads in the spark plug hole. If the vehicle is under warranty, cylinder head replacement is recommended. If the vehicle is out of warranty, Ford authorized the use of a specific thread insert to repair the head.

25 Reports
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Verified for the Ford Expedition

Intermittent rough idle may be caused by the EGR sensor sticking, causing the EGR valve to stay slightly open. Our technicians tell us the valve and sensor must be replaced together to correct this concern.

12 Reports
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Verified for the Ford Expedition

The PCV hose may crack, causing the vehicle to idle roughly, this may or may not illuminate the Check Engine Light.

17 Reports
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