Hey everyone, I've been fighting this miss for quit some time now, I keep popping a p0300. I've been throwing parts at it like crazy. I'm a tech at a Goodyear retail store and have up-to-date equipment, but still no luck! The ses light flashes under load, e.i., getting on the highway speedin up to pass, truck shakes like crazy, and loss of power. Only randomly. I've done the normal, plugs,wires,cap,rotor,MAF,coil. Still missing. I hooked it up to the solous scanner and #3 and #4 are the cylinders that keep missing. Idc what it costs just want the damn miss to go away, very annoying. Suggestions would be greatly appreciated

Possibly the spider injector? That was my next step. Cam sensor? Maybe the actual distributor?

 

do a compression test
I had a pulled rocker stud on a 3.4L that was throwing miss fire codes

 

Good idea, thanks for the tip. You don't suppose a slight exhaust leak would be an issue?

 

Had the same kind of miss in my taurus turned out coil pack had a hairline crack also 02 sensor gave me a wicked miss fire