My 2001 Saab 9-5 has 156,000 miles and is generally in fine working condition. An irregularity in starting began about two months ago which will happen say once every twenty times the car is driven for more than twenty minutes or so.
The car always starts when the engine is cold, first time each day. After driving for awhile then stopping for a quick errand, more than 90% of the time the car will restart, less then 10 % of the time it does not. The engine does not crank at all, only a faint click noise. I can try starting again a number of times with the same noise and result.
However, after 20-25 minutes have passed the car will start as it normally should. Seems to me somehow the problem relates to the cooling off period. Does this make sense?
Is it a switch, a loose wire on the starter, internal wear on the starter motor? Is it a clue that it takes about the same amount of time before it will retart?