Coil on plug # 6 on Ford V10
Had to change the coil and spark plug on cylinder # 6 to get rid of rough idle and stumble on acceleration. Many of the literature articles I read show #6 as going bad. Any one know why? one video s...
Forum Discussion
I have my doubts that #6 has any design errors above any other cylinder, I highly suspect that it is more like a coincidence that folks are pointing to #6 more often because they are POSTING the "results" that they found.
Good chance that there are just as many other folks who DIDN'T post (unreported) about #6 evening out the odds..
Pretty much with a V10 you have 10 coils/plugs to figure out which one is the problem child.. So, a 1 in 10 thing IF it is only 1 if you are lucky.
I had one 5.4 go 200,000 miles before experiencing a COP failure and another 5.4 which barely made it 100,000 miles before a COP failure.. Don't remember which cylinder.
I can tell you this, don't buy the generic COPsm they are good for troubleshooting but I didn't have them last more than 6 months before random misfires.
You can buy a complete set of generic COPs for troubleshooting ($60 for 8) and when you find the bad one replace it with a OEM one ($60 for ONE).
As far as popping plugs, I have had 5.4s from 97, 2003, 2006 and combined mileage of almost 500,000 miles and never popped one.
The reason for no popped plugs, you MUST use a TORQUE WRENCH and TORQUE THE PLUGS TO PROPER SPECIFICATIONS FOR THAT ENGINE YEAR!!!!
You can not rely on hand feel torquing like everyone did on iron heads, you will either overshoot and damage aluminum head threads or under torque and have the plugs work lose.
If you did not use a torque wrench, please reconsider..
Good chance that there are just as many other folks who DIDN'T post (unreported) about #6 evening out the odds..
Pretty much with a V10 you have 10 coils/plugs to figure out which one is the problem child.. So, a 1 in 10 thing IF it is only 1 if you are lucky.
I had one 5.4 go 200,000 miles before experiencing a COP failure and another 5.4 which barely made it 100,000 miles before a COP failure.. Don't remember which cylinder.
I can tell you this, don't buy the generic COPsm they are good for troubleshooting but I didn't have them last more than 6 months before random misfires.
You can buy a complete set of generic COPs for troubleshooting ($60 for 8) and when you find the bad one replace it with a OEM one ($60 for ONE).
As far as popping plugs, I have had 5.4s from 97, 2003, 2006 and combined mileage of almost 500,000 miles and never popped one.
The reason for no popped plugs, you MUST use a TORQUE WRENCH and TORQUE THE PLUGS TO PROPER SPECIFICATIONS FOR THAT ENGINE YEAR!!!!
You can not rely on hand feel torquing like everyone did on iron heads, you will either overshoot and damage aluminum head threads or under torque and have the plugs work lose.
If you did not use a torque wrench, please reconsider..
