Originally Posted by jscupa
On four occasions during the past month, my 2005 Crossfire Coupe has refused to start. All of the electricals work, but the engine will not turn over. After 20-30 minutes, the engine starts normally. On two of the four occasions, I have stopped in a parking lot, run into a store and when I came out the engine would not start. On two occasions, the engine has stopped running at low speed and then the engine will not restart. Again, after 20-30 minutes the engine restarts.
I have had two Crankshaft position sensors fail, both times they went period with no warning. Not trusting the dealer to fix this at a reasonable cost, I pulled out the workshop manual and using the listed symptoms and causes I found out that the CPS was kaput. This did require a sensitive multimeter but I did it. The dealer was quite surprised and probably disappointed, that I could tell him the problem, they prefer the
what if method, whereby they change things until it works and then stick you with buying parts you never needed in the first place ...... and they wonder why we mistrust them.
My guess would be ignition switch or a poor contact at the battery terminal. The high amperage drawn by the starter needs a good contact. Look for something simple (and cheap) at first and work your way up the scale. Intermittent faults are the hardest to solve most often.
I am probably wrong but thats where I would start.