An illuminated Check Engine Light could indicate that one or more of the ignition coils has failed due to excessive spark plug gap. To fix this problem, the ignition coils that have failed, the spark plugs, and all coil boots should be replaced.
Ford Expedition Problem Reports
Most Reported Ford Expedition Problem Reports
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.
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.
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.
The PCV hose may crack, causing the vehicle to idle roughly, this may or may not illuminate the Check Engine Light.
Our technicians tell us the spark plugs in this engine can be very difficult to remove. Ford has issued a service bulletin (08-7-6) to address this issue, which includes a recommended procedure on how to remove the plugs. Failure to follow the recommended procedure can result in the one or more spark plugs breaking off in the cylinder head.
The recommend procedure is as follows. Using this procedure will greatly reduce the chance of breaking a spark plug.
1. Break the spark plugs loose when the engine is warm.
2. Turn each plug 1/8 to 1/4 turn and soak the treads with 1/2 to 3/4 teaspoon of Motorcraft Carburetor Tune-Up Cleaner or a quality penetrating oil. Do not try to remove the plugs at this time.
3. Let the threads soak for at least 15 minutes.
4. After the soak period, tighten and loosen each spark plug, working it back and forth until the turning effort is reduced. Then, you can remove the spark plug.
There are special tools available to remove the broken spark plugs and repair shops will often charge additional labor time, over and above the quoted spark plug replacement cost, for the removal of each broken spark plug.
Knocking sound in the back of the car when the a/c or heat is on.
Replaced the rear ac blower damper motor. = $40.00
While driving for about 30 min, my engine began to knock loudly and began to experience and very rough idle. It is very hasitant to drive and comes really close to cutting off when I come to a complete stop. I check the engine oil and it is good. However, I did put about a quarter tank of 87 unleaded gas in there this morning from a low-priced gas station so maybe that has something to do with it.
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.
2011 Ford Expedition King Ranch with 22,000 miles was gushing transmission fluid while driving. The entire back of the truck was covered with this fluid. Transmission began slipping and the powertrain light came on. Ford has had my vehicle for 1 week stating they need to replace the transmission pump. But they weren't sure if that was even the problem. Although the vehicle is under warranty, they refuse to provide me with a replacement ve...
SOMETIMES IT DOES GOOD BUT LATELY AFTERVI DRIVE ARE WHEN LEFT AIR SUPENION COMPRESSION COME ON IT JERKS AND CUT OF ARE AT COMPLETE STOP IT STALLS and CUT OFF
My 20 02 Expedition has 190,000 miles. It has been a good vehicle other than 2 fuel pump replacements. Idle normally 600 rpm. Last couple of days Idle oscillated up to 1200 and down to 500. When put in gear it was surging to 2000, with associated lunging.
checked for Vac leaks none noted. Cleaned the IAC Seams to have resolved the problem