I have 2006 Chrysler 300 srt8 150.000 miles, the car cranks on cold with no problems, start right up, but when I drive de car for about 15 minutes and I turn off the engine the car cranked to slow like the battery is not good, I need to let it cool off so I can be able to start the engine again. I took the car to 2 mechanic's the first one replaced the starter the second one replace the battery and the problem still there. I went back to one off them and he changed the positive starter cable, and it still didn't fix the problem. thanks
Was the replacement starter new or rebuilt? Was the ground strap between chassis and engine checked?
You may be experiencing starter heat soak. Parts in the starter expand from heat given off by the engine and exhaust system making it more difficult for the starter to turn, and resistance in the armature windings increases as well. This can cause a slow crank or no crank problem that goes away after it cools. Is there a heat shield for the starter missing?
Thanks for your fast response the starter was new, and I will check if the heat shield is there, and I would make sure that they will check the ground strap. I will let you know if there is any change after checking this things. Thanks