My 1988 GT convertible died on the freeway a while back (engine quit like someone shut off a light switch... no sputtering... just off). Anyway, I am troubleshooting it and have found that it will run seemingly fine for a minute and then die again. After that, it won't start. If I come back a few hours later, the same thing happens... it will start and run for a minute..then die....and not restart at all.
There is no spark coming from the coil when it won't start.
I have replaced the ignition coil, cap, and rotor and this problem persists. Where else should I look??
Please help!!