2001 Ford Expedition Problem occurs at

This issue usually occurs when the vehicle is between 60 - 70 mph. There is no official solution to this issue, it should have been a Ford recall, as this fault is dangerous.

There is a known malfunction in the fly by wire system that is suspected to be the cause of this system failure. The throttle body assembly gets replaced when this occurs as a possible solution to the problem. Check the connections on the 2 tps sensors first before assuming the replacement is necessary.

the flashing light means you have a miss fire in the engine. You probably have a coil bad. Each cylinder has its own coil. My suggestion would be to go to a parts store and let them scan to tell you which cylinder, then change the coil. If thats not it then you have a bad injector

might try replacing the fuel filter and clean throttle body.

sounds like a exhaust leak at the manifold and exhaust pipe. it is a very,very,very common problem.

It sounds like the problem occurs when the transmission changes into second gear. It could be the modulator valve or the clutches in the transmission may have seen their better days. Pull the transmission dip stick out. Look at the color of the fluid. It should be bright pink. If it is brown and has a burnt odor the transmission is most likely in need of being rebuilt.

if your vehicle slows from 70 downto 60 with no change in revs ,then the transmission is slipping .. imust say i dont believe that the speed drops back without the revs dropping down too, i am not calling you a liar ,i`m saying you are not making accurate observations , and without those we are just guessing .

Toss a couple cans of engine medic into your gas tank and I bet you will solve alot of your problem

check fuel filter or air filter or air intake sensor

I have a 2006 expedition with 136,000 miles and have had the transmission checked and replaced the coil wires but it still misses at 40-50 MPH and at 70 mph does the same sound. If you accelerate and back off the go again it sounds like the transmission is clunking but the transmission guy said it wasn't the transmission. HELP!!!

My was doing the same thing, it was an EGR valve and a misfire on the #2 cylinder which required a new spark plug and a coil pack
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