Q: losing acceleration
My F150 was undriven for almost two years. I have had it tuned up, new fuel pump, drained fuel tank, replaced exhaust. These have helped. The truck starts easily, but after a mile or two it starts to lose power. I push the accelerator but the engine doesn't respond. It doesn't stall, but it creeps along around 5mph(est., speedometer broken). Please explain. many thanks.
My car has 180000 miles.
My car has an automatic transmission.
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