help diagnose engine issue - 04 5.4
#1
help diagnose engine issue - 04 5.4
I'm getting codes for system to lean, and cylinder 6 missfire right now
the truck will stumble while cruising between 40-60mph, it's been serious enough to set off the flashing CEL a couple times now, and the problem seems to be getting worse. I've got an edge and a 3" catback on the truck now
Does anybody know where i should start with trying to diagnose this problem?
the truck will stumble while cruising between 40-60mph, it's been serious enough to set off the flashing CEL a couple times now, and the problem seems to be getting worse. I've got an edge and a 3" catback on the truck now
Does anybody know where i should start with trying to diagnose this problem?
#2
#3
I think I am getting the same response from mine (04 5.4) When I am around 50-60Mph or when I am around 1900 Rpm it acts like it wants to stutter, I haven't hooked it to a computer yet to see if I am getting any codes. I am getting it looked at on Monday so I might be able to let you know what they say about mine.
#7
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#8
well i have a 04 5.4 also and mine was doing the same thing when i was one the highway and cruising about 60ish i would get a bad shutter, how many miles do yo have on your truck? mine was at 100,000 when it started i tried a couple of different thinks thought it might be my tires loose and then i talked to a couple of guys on here and they said that it might be my spark plugs, i thought that wasn't the case cause i never got a code or anything, i also had a rough idle... and i went to the dealership and had them replace the spark plugs and coils and after driving it 4,000 miles these last 2 months it hasn't made a single shutter or weird vibration... so it might be that i would look into it though...
#11
Do yourself a favor and let a dealer do it that can tell you that they have had a high success rate.
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Jim
Jim
#12
i second that bud you just need to let the pro's do it, you wont regret it, it is so hard to do it yourself and then if something goes wrong or you can't figure it out you are going to have to tow your truck to the dealer.... best of luck though
#13
anybody from the ct area have a dealership that they've had success with?