dylan white

Ok well I was told that I was losing my fuel pressure when I would get on the throttle and was recommended that I change the fuel pump well I changed that and the fuel filter and it doesn't do it near as bad and another thing it stutters at low rpms so I have to take my foot off the gas and reapply pressure I can't figure out what's wrong but my mechanic said that it had a pending lean code somebody give me a little insite

connorfx4

More info on the truck? What motor? Mileage? When was the last tune up done?

dylan white

2005 5.4 130000 bought it when it had 119000 so idk when the last tune up was

04 Lucho

I used to have a stutter at low rpm's I checked my coil packs, because they were never change. I found two were bad and replaced all eight with accel coil packs. I didn't have the money for the Motorcraft ones, so those will do for now. It fixed my stutter.

dylan white

great thank you that was gonna be the next thing to look at its time to change the spark plugs and coil packs anyway

connorfx4

yup, time for plugs. While you're in there you should clean your throttle body and maf

HulluCorn

Was it throwing any codes? Or how did you find that two were bad.

04 Lucho

No codes were ever thrown. It's simple, i would disconnect one coil pack and if there was a change in the motor, not running correct, then it was good. If I disconnected and the motor kept on running without any change, it was bad or going bad. It worked for me, I changed out coil 2 and 7 with 1 and 8, and when I disconnected 2 and 7 the engine would run different. When I discount 1 and 8 it ran fine with no change. I then order a set of accel coil packs, couldn't afford all Motorcraft (college student) and replace 1 and 8 with the new ones and the truck didn't stutter anymore. After that I replaced all of them and the truck runs great.