Heat and/or overvoltage will kill a capacitor. I would rule out engine heat for now. The condenser and coil work hand-in-hand. Talk to your son and see if he can get access to a diagnostic scope. Install another new capacitor. See what the primary and secondary coil voltages look like.

Last edited by buoymaker; 09/10/2021 11:31 PM.

"Adding CFM to a truck will only help at engine speeds you don't want to use."
"I found there was nothing to gain beyond 400 CFM."