I can be driving in 4th gear at 65mph, and all of a sudden, it feels like the truck only has half power, but if I downshift to 3rd, get back up to speed and shift back to 4th, its ok. I replaced the fuel pump thinking that was it, but it wasn't. Any ideas? Maybe fuel pump or injectors? I'm going to swap out plugs and wires soon. It's got 260000 miles on it.

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1997 Ford Ranger 2.3L That's in the junkyard.
Still a member to help with my friends.
1998 Ford Ranger 3.0L 5-speed