Engines "retards" under WOT

[BigAl614]

Hey guys,

2010 Ford Expy EL

If I accelerate hard the truck seems to go into limp mode and check engine would blink for several minutes and the straighten out... It is now staying on.

This is a problem going up a hill or trying to pass someone.

Any ideas for me?

Thank you
Al

 

[stamp11127]

The ecm/pcm is constantly monitoring the system operation. When something is out of spec it will log a code so the first step is to have the codes read.

 

[jeff kushner]

Is this accompanied by a lot of shaking and maybe an increase in engine speed but the truck doesn't seem to accelerate at the same pace?

jeff

 

[2007Limited]

Mine had the same symptoms when it was in need of a tune-up, but like Stamp said, use a code reader before swapping out parts.

 

[docraymund]

Check the fuel pressure. It is the first symptoms of fuel pump inadequacy and eventual failure.

 

[bloodhound]

Hey guys,

2010 Ford Expy EL

If I accelerate hard the truck seems to go into limp mode and check engine would blink for several minutes and the straighten out... It is now staying on.

This is a problem going up a hill or trying to pass someone.

Any ideas for me?

Thank you
Al

Can't tell much without knowing what the trouble code is. Could be plugs or coils, could be fuel injector or pump, or many other things.

 

[gixer2000]

Blinking check engine light is a misfire and once it reaches a set number of misfires it will remain on. I would pull the code and go from there

 

[Chriscpr84]

Had the same issue a couple days ago and it was a bad coil pack. Easy 40 dollar fix.

 

[Ender]

Bad coil pack, could be plug too. I had the same issue with my Expy and F250. I replaced all plugs and coils with eBay parts. Cost about $100 for each vehicle. The code told me on my Expy it was cylinder 3, but it wasn't really the only one, so I ended up just swapping them all. On both vehicles, I have about 40k miles on the eBay parts with no issues. Maybe not conventional wisdom, but I'm not wealthy!