Anyone else have this problem or know a fix? It runs great when its ideling, but when you are getting on it under a load it starts to miss. We have done a full tune up, plugs, wires, and cleaned the MAF. That didn't fit so we bought a new MAF. Still runs bad. There are no codes. Any other ideas?

Any codes being thrown or stored? Could be a coil pack I suppose - haven't had to do anything to mine except oil & filters so far.

please correct me if im wrong but your profile says your truck is a '96 and you have a duratec? a 96 2.3 would have been the lima, ford didnt manufacture the duratec till '01?

please correct me if im wrong but your profile says your truck is a '96 and you have a duratec? a 96 2.3 would have been the lima, ford didnt manufacture the duratec till '01?


his dad has a duratec

Matt, what year is it? on my 01 i have a similar problem, im assuming its an injector, but i dont feel like pulling the top off and checking

my 03 Auto had this problem. it was a couple diff things. #1 sparkplug was in pices(blew up) and the fuel pump was going out. Fuel pump went out at 46K miles.

Yeah its my dad's 01'. He has done a full tune up and also replace the coil pack with no results. I was thinking something fuel related, just not sure how you cn diagonse if its an injector or a fuel pump.

mines doing it...I'm thinking mine is fuel pump...but I'm waiting for colder weather to work on it

How would I check out the fuel pump? Since it really only does it under load, like if you get on it hard a about 3000rmp it misses all the way to about 4000rmp. Maybe at idle if the pump is bad the gauge will drop?

My 01 did that and after a full tune-up and changeing the coil pack it stoped.

The check engine light just came on (was never on before) while he was going up a hill, was missing out at the time the light came on. We checked the code and it said left bank lean. So I am now sure its fuel related. I guess the next step would be to check the fuel pressure.

Checked the fuel pressure last night, read 60psi when the key was on and 70psi when engine was running. So the fuel pump seams to be fine. Vacuum was held at 20hg when idle and 2500rmp. Any ideas?

Old post, we sold the truck last year... but just incase someone searches this post. The problem was a bad spark plug. We had done a tuneup a little while before we started having the missing problems. Apparently one of the Autolite plugs we put in failed. Put in a set of Motorcrafts and no more missing.

Thanks for the update!

its the coil pack mine was replaced yesterday under load it was missing take ot to the dealership and they will through a new coil pack on it

its the coil pack mine was replaced yesterday under load it was missing take ot to the dealership and they will through a new coil pack on it

Wait, what??? There was no question here... This was merely an update.

Never heard of problems with Autolites, but I've also never used anything but Motorcrafts in Fords. They're good for 100k easy.

oops thanks i didnt read all of it

but this happened to my truck and it was the coil pack