So this morning on my way to work, my truck started bucking on the small hills of the back roads. This is happening at low rpm. If I get the rpm's up, it seems to smooth out, but does not seem to have the power that it should. Sounds like a little hesitation when I have it in park and rev it.

It is not throwing any codes. Just had the plugs replaced 6 months ago. I'm at 1/2 a tank so I don't think it is bad fuel. Fuel filter was done with the plugs. I don't hear ticking so I don't think I blew out a plug.

Any help would be appreciated.

 

Oh, it's a 5.4 with auto.

 

Coil packs. If 3 or more go at once it confuses the computer and doesn't throw a code right away. FML.

 

I had just a single one take about two weeks to throw a code...

I didn't feel like playing the guess n check game so I forced it to miss at a certain RPM around town till I got the light...

 

Yea, that's what I'm hoping for. Last night it got really bad. Whole truck was shaking, but this morning it only acted up a little.