2007 Ford Expedition-Battery, tow, misfire loss of power

[TeamNixon]

Hello Everyone, I am new to this forum. I am trying to do some research about my expedition. I have a 2007 Ford Expedition EL Eddie Bauer and I was told the engine was gone by a mechanic. We pulled it back home and purchased another vehicle but I do not believe this is the case. I had a fuse put on my truck that made my enclosed trailer lights function when it was connected. After that my battery light begin to flash but my battery was fine and I've already had an alternator put on prior to this. Afterwards I had spark plugs, oil change and coils put on and it kept registering misfire. So battery light and misfire then while driving I lost power and it wouldn't crank back up... oil light began flashing along with other lights before it died out. just dont seem like my engine but I'm not a mechanic. Has anyone had anything similar that can direct me..

 

[Motorcity muscle]

Welcome to site, how many miles on truck? Can you easily remove the fuse to eliminate that as causing battery light. Oil light is a whole different issue, so this motor has variable valve timing and using engine oil to function. Others will chime in to help you out, not sure but low oil pressure may cause computer to shut engine off and you may have to remove power from battery for a bit to reset computer,

 

[Don Hall]

Any codes evident?

 

[TeamNixon]

Codes prior to this event was just the misfire 4. We changed out the spark plugs and coils and still had misfire

 

[TeamNixon]

There are about 256k miles. I researched and there was more than one fuse under the hood. By the way I am a woman trying to figure this out, lol! My husband wants to get rid of it. But I think something was maybe overlooked by the mechanic.

 

[Motorcity muscle]

Okay that's a bunch of miles. Need to check the wiring going to cylinder number four, both the injector and the coil. These connections need to checked very closely for broken wire/connection.

 

[TeamNixon]

Ok thanks will do!

 

[Don Hall]

Sounds like a job for an auto-electric shop, not a mechanic. Can the truck be driven?

 

[Adieu]

Iirc, I had a similar thing with a '12 Navigator L I used to own (mechanically identical to Expedition)

It happened after disconnecting or discharging the battery. It would do wacky **** like lose power, stall out windows blue screen of death style on shifting back from reverse, die at lights, etc.

With flashing battery and oil lights, loss of power steering, all the good OH SHEE... type symptoms that make you think it's about done. It is NOT though.

The culprit was actually a VERY dirty throttle body + loss of throttle "learn" at electrical power disconnect.

It's NOT anything broken, it's just some sort of failsafe limp mode or something crap that the ECU does when the throttle doesn't react how it expects it to.


You could probably somehow relearn it to work ok for a while... but just pull and clean the throttle body instead. Then drive 20 miles of circles through your neighborhood and you're good to go.

 

[proftomda]

Did you get it fixed? If not can you get the truck started by jumpstarting?