Cadillac Repair: 1994 CAD Deville V8 4.9 Wont Start when hot, wiring harnesses, box connector

Question
Greetings
I have a 1994 CAD Deville V8 4.9 33k miles that wont Start when hot. I live in the Desert and when the outside temp goves over 100+ I can start the car  when the engine is cool and drive around for a while 1-2 hours but if I stop and try to restart after its hot it acts like it it is out of gas and wont start.  
IF I LET IT SET TILL THE ENGINE COOLS IT WILL RESTART AND RUN FINE?
Previously if I have been driving with the AC on HI on a hot day it ran fine till Id turn the AC off or low or the fan to low; then it would stall while running....when I come to a stop light. It  would howerver generally restart without a problem in a minute or so but would not idle; till it had been shut off and cooled down.
ANY HELP or Suggestions would be greatly appreciated!

Answer
Hi Bob, Sounds like the module inside the distributor is starting to fail. If the engine turns over at normal speed but won't start then grab a spark checker and put it at the end of a sparkplug wire and crank the engine. If if sparks then you have a fuel problem. If no spark then look to the distributor module or possably the wiring harness inside the distibutor. I have seen where the power wire, pink I believe, goes open at the black plastic box connector inside the distributor and can be tested with an ohmeter. If that is the problem then replace the 2 wiring harnesses that make up the distributor wiring harness because the plastic conector will break apart when trying to remove the terminal and that makes it difficult to put back together. Hope that helps. Bill