Sporadic starter motor problem after driving 10 miles
I have a 2004 Mercury Grand Marquis. The car starts fine cold. Then I will drive it 10 miles and and try to start the car. Everything works except the starter will not even make a noisr. This is a sporadic problem over the last month. All dash light are on. I wait a few minutes--like 7 to 10 and the starter starts car immediately. Battery is new, starter is new. I went to Ford dealer and he can find no problem. Naturally the problem will not occur at the dealer. Any ideas?