I feel coils are mostly bullet proof , or at least tuff . I have had 1 coil go bad in 40 + yrs I bought maybe 1 or 2 ever . -----Original Message----- From: Gerald Livingston <gerald.tcb@xxxxxxxxxxxxx> To: tcb <tcb@xxxxxxxxxxxxx> Sent: Fri, Mar 28, 2014 3:18 am Subject: [tcb] Well crap (burning coils?) What would cause coils to go out ... repeatedly? I cannot be absolutely certain that is what's wrong this time because it is 3am and raining and I'm not walking BACK to where I left the bus (in a customer's parking lot about 1/2 mile from here) and putzing with it in the dark. When I was having the strange "firing out of time" issue it cleared up by replacing the MSD Blaster coil that was in there with the old one I had taken out when I installed the MSD. That was mid January. At the end of February the bus quit starting again. I went to AutoZone and bought another coil. It is clearly labeled USE WITHOUT EXTERNAL RESISTOR. I added a ballast resistor anyway just in case something was burning up coils. Well, that one went out (it would appear to have anyway) a couple of hours ago. I'll replace it some time today and see if it gets me running again and will update this thread. Until then, what could cause failure of multiple coils? Gerald