Originally Posted by
JeffYoung
.........There is a test. You have to cross a couple of the wires at the box while seeing if you get spark from the coil. MSD website has the test instructions; Ron can also tell you -- he's the wire crosser while I'm just the coil wire holder..........
Did that test, still no spark
Also, whether under warranty or not, MSD fixes those boxes pretty cheaply.
Note that the only boxes I've seen fail have been mounted vertically. You mount it on the floor, with the vibration dampers, and I've not had any issues.
Hmmm, mine is mounted vertically on the interior firewall. Maybe time for a change in mounting location