My 2005 GC will sometimes not start. The battery is good. What do I need to check? The CE light is not on. It will sometimes go for a couple of weeks between symptoms. When having the problem, the ignition key gets turned, there may or may not be a clicking sound from, what I assume, the starter solenoid, and there is no engine start. Sometimes it does this once, other times it take 15 to 20 minutes before the engine cranks. What is the probable culprit?