Scotty, I drive a 2005 Hyundai Elantra when driving uphill the car jst looses power and stalls sometimes. Also, when am driving with the A/C turned on the car looses power after the coolant temperature reaches the normal , what could be the problem could it be my fuel pump?



pressure test the fuel pump to see if it's weak AFTER changing the fuel filter, as a clogged ffilterr can do that too. And if not that, try this video https://www.youtube.com/watch?v=NWCKvU2FmDc