07 XLT coil packs

[Kyle_]

So my expy recently threw a code for a misfire on cylinder 8. Checked it out on Friday and what I found was the bolts on 5/8 of the coil packs were backed out at least 3/4 of the way (cylinder 8s pack was completely loose) Tightened them up and made a 2.5 hr drive to New Orleans at an almost constant speed of 80-85mph no more misfires. Did anyone else have this problem of the bolts backing out and what do you all recommend to keep ‘‘em from backing out?

 

[blackedoutlimited]

So my expy recently threw a code for a misfire on cylinder 8. Checked it out on Friday and what I found was the bolts on 5/8 of the coil packs were backed out at least 3/4 of the way (cylinder 8s pack was completely loose) Tightened them up and made a 2.5 hr drive to New Orleans at an almost constant speed of 80-85mph no more misfires. Did anyone else have this problem of the bolts backing out and what do you all recommend to keep ‘‘em from backing out?

A very very small drop of blue locktite. A single drop literally