2002 ford explorer fuel pump replacement time

Occasionally while idling the RPM's drop down repeatedly. When this happens I can maintain speed but cannot accelerate. I can take my foot off the gas and then press it again and sometimes that fixes the issue. When maintaining speeds of 35mph and 55mph, RPM's drop down from 2000-2500 to below 2000 and I can't get any pickup or gain any speed. He says he can't duplicate it but for me it happens just about everytime I drive it. I've taken my vehicle to a mechanic 3 seperate times and he has no idea what the issue is. Has anyone had simular problems and how were they fixed?ġ999 Ford Explorer 6 cyl Four Wheel Drive Automatic 149000 miles still the same prob, it has been 45k miles since this has been started and i am ready to pull my hair out. i changed the coil pack and just last week the fuel pump quit so i have changed that and the filter again. I had thought it was the trans but a trans shop told me that it was in the motor not the trans. I changed the idle air control valve and the plugs a second time in 20k miles with platnuim. i then drove it back to tx and drove it like this for 2 more yrs, while changing parts when i can. I changed the plug wires and the fuel filter it didn't help my problem. Once i got to my destination it was -17 degrees and the check engine light would come on for 10 min then go out for 30 min, then quit once it got above 0.

this started while on a cross crountry trip (tx to mich).

i bought it 3 yrs ago with an external water leak at the head gaskets at 95k so i changed the gaskets and a week and a half later it developed a miss or a stumble under a load.

2002 ford explorer fuel pump replacement time