I have a 2001 GMC Sonoma with 60,000 miles. Purchased it used 8 months ago. In the past month it has started exhibiting problems starting. 10% of the time when key is turned to start position nothing happens with the engine. No sounds, no clicking, nothing. In the dash the following gauges remain illuminated: Fuel, battery, RPM,MPH, Oil, Temp, Odometer. The following warning lights turn off: seat belt, security, brake, check gauges, low fuel, and battery. The head lights do not flicker. It might be related to the change in weather . . . I live in northern Indiana. Truck will not start initially, but after several tries and a couple of minutes of rest, it eventually cranks. This starting process has always taken only a few minutes . . . usually under 5.
I guess it is the inconsistency and unpredictability that have me perplexed. I found it interesting that the headlights and half of the dashboard instruments are not affected by this problem.