5.4 engine shutter

[camaro]

Hey whats up traded the sd for an excursion, anyway im having some probs. motor has a stutter that seems like a plug isnt firing, comes and goes, rpms drop alittle when its happening loss of power is noticable but not horrible, sometimes light shutter sometimes really bad that you can feel through the whole truck, shakes the steering wheel, ive bought new plugs, havnt changed yet thought i would ask first, 01 exc. 45k 5.4 motor. any thoughts? Thanks guys.
Dan the Man

[todlake]

Probably not it, but for grins, check the PCV valve (the shake test doesn't work...). Mine caused me fits when it went bad.

[Black05]

Might be one of the coils starting to fail.

[BETCHER78]

Definately one of the coil packs starting to fail.. even if there is no service soon light on. take it either to dealership or be nice to auto zone.. it will show up as cyl misfire..

i just replaced #8.. i am on coilpack replacment number 6 with 204K on truck

bb