Q: My 09 explorer wouldn't accelerate going uphill, on idle it wouldn't go over 3000 rpm.
When going uphill hill it has a hard time going above 70mph, or to pass someone on the freeway it takes longer to accelerate, but driving just normal I have no problem, there are no codes.
Replaced spark plugs, wires, fuel filter
Did oil change, transmission fluid change and filter change.
Please advise
My car has 140000 miles.
My car has an automatic transmission.
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