I live in a very hot area I'm having problems with my car only when the ac is on if the ac is off I have no problems..after about 15 minutes of driving with the ac on the car starts knocking and turns off in idle like in a red light. Another problem is that it turned off on me on the road when driving for a while with ac on.. But when I let it cool for a couple of minutes it starts up and running but I turn the ac off .. I'm suspecting the fuel pump cannot handle the load of working with the ac on especially in the heat
My car has 270000 miles.
My car has an automatic transmission.
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