Here's the skinny...
My 89 Camaro RS(2.8 V6) is having a starting issue that I cant seem to pin down.
Here is what happens, when I park after driving for a while(especially with city stop and go) my car doesn't start back up when I want it to. It doesn't turn over, the starter doesn't even click, but other than not starting, my car seems to respond normally to me turning the key to on.
The weird thing is the problem is much more persistent when I leave the radio or the vent system on when I turn off the car. Infact, if I leave either/both of those things turned on and go in to a class, when I come back out 2 hours later, the car still wont start, but if I turn those things off and try again 20 mins later, it starts right up.
This problem doesn't happen when I start the car for the first time of the day, even if the radio is on, it will still start in the morning.
When I doesn't start, I can leave the key turned to on and cross the starter with a screw driver and the car will start.
I have fabricated a heat shield to protect the starter from the heat of the exhaust manifold and the block, but this has had no effect on the problem.
Other info: I installed a VATS bypass 3 or 4 years ago and it still works fine so that isnt the problem. I rebuilt the starter 3 years ago and it tests good. Alternator is about 8 months old and recently tested good as did the battery.
Im at a loss and could really use some help with this.