Question: I have an '86 GT, 2.8. When initially starting, the motor runs for about 4 minutes then quits. Each subsequent start it gradually runs for a less amount of time, until it won't start at all. At this time there is no spark from coil to distr. I replaced the coil with no help. Looking next to the ignition module and then the pickup coil. Is there anything else that it may be? I assume that heat is triggering this malfunction.
Answer: You are probably correct. Try the module next as you don't have to pull the distributor.
These ignition parts, in particular, should be replaced with AC Delco parts. Aftermarket parts have proven not to last very long.
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