Multiple #6 Ignition Coil failure

2005 Tacoma Pre Renner TRD
4.0L V6
234000 miles

I had the #6 Ignition coil go bad so I changed out with one from AutoZone and changed all the plugs while I was at it. 6 days later it went out again. Changed out a 2nd time, this lasted 13 days. Change #3. that lasted 2 weeks. Chang #4 got my money back and got the coil from the dealer, this lasted for a while longer 680 miles then pop, it's out again. I don't know what else to check. I am not loosing any radiator fluid. Anyone have any ideas what to look for? I am getting misfire when running around 40+ mph.

 

Blown head gasket... Get a compression and leak down test done. That will tell you the story of what is going on.

 

Any resolution?

 

Looks like it was just a small crack in the gasket around the #6 plug. Added some conditioner and sealant and haven't had a problem since. I know it is just a temp fix but it saved me $1400 they wanted to replace the head gasket. Maybe when my funds are a bit more in line I will get it taken care of the right way. The engine never overheated, no lose of fluids.