V-10 has coil packs, one coil for two cylinders. It fires both plugs at the same time, that's why they are labeled, and firing order is critical. (like it isn't on a distributor......) So, what you are probably getting is, incomplete combustion on one or more cylinders, and on the exhaust stroke, when the plug fires again....... it ignites what's left, and you get a backfire.

On the V-8, I would think that cam sensor was going belly up, or, fuel sync was way out of phase.... I don't know exactly where the cam sensor is on the 10...... but it almost sounds like it is failing.

 

+1

Think'in cam sensor, but it was fine before, so what plugs did you put in it and did you gap them? Hope you got the OEM CHampions I listed in my other post.

 

Turns out I'm just a dumb ***. I had the plug wires wrong for the odd number cylinders on the drivers side. They were so off I don't know how it ran at all!

I rewired them all, checked and double checked, then triple checked, and then fired it up and she was smooth as butter. Well... as smooth as an old V10 with 120K could sound. And best of all, no oil leaks or fluid leaks.

Sooooo.. next is trouble shooting the AC.

Thanks for the help.

Eddie

 

Thanks for letting us know!

Yep, that would certainly do it. Bet it drives much better now too.