2005 Mustang Gt won’t crank

[Anthony Rodriguez]

I went to my job everything fine and when I try to turn the car on the car won’t crank no sound, the battery is good. That day i try again and the car work fine again, the other day the same thing no crack no sound and stay like that until now. What can the problem be?

 

[Laga]

You have a loose wire somewhere. Check battery cables and connections at starter to begin with. Make sure grounds are clean.

 

[Dino Dino Bambino]

What he said, plus you didn't tell us if your car is manual or automatic.
If it's manual, a faulty clutch safety switch would cause a no crank situation but make sure that the clutch pedal goes all the way to the floor and that it isn't obstructed by a thick carpet or mat.
If it's automatic, a bad neutral safety switch (NSS) could cause the same problem. You might be able to start an automatic with a bad NSS by shifting the selector to N (neutral).

 

[Juice]

Or your starter that maybe 16 years in service is going out. Next time it does not start, get under there and hit the starter with the hammer (dont be shy, good whack). If it starts after that, starter confirmed.

 

[Iceman62]

Note: When you say "battery is good" what's your proof (new/tested/full charge)?

 

[Monkeyporn]

I was going to suggest all of these but hey tthe fellows have so do what they said.

 

[oldtexasdog]

I had the same problem on a 08 and it was the battery. It was fairly new but It had a bad cell and would show a full charge but the cell would go out intermittently