My 1996 ranger xlt 2.3 5 speed (8 plugs) has extreme power issues. She lacks power when im leaving a complete stop like a great hesitation to gain speed. Can almost hear like different levels of her gaining speed and through every shift (vroom vroom vroooom). the engine revs more than pulls. When I floor off the line, the pull she gives is nothing and the acceleration is slogish. to me the acceleration is slow which I don't think is right. shes a light truck and a 5 speed so the acceleration should be decent. atleast to pull away from cars. This is greatest when the temp outside is about 75 F and above. She drives much better when its below 75 F. So I have no idea what could be the problem.
OH WAIT! the accelereation and hesitation and loss of power is much much grater when the A/C is on sometimes it feels like its misfiring.
Things done to it, is a tune up (plugs, wires, air filter, oil change)
Changed both O2 sensors. Still gives o2 sensor code (bank 1 sensor 1)
sometimes Coil A pops up on the CEL and an evap code pops up everytime along with the O2 sensor 1

ANY IDEAS OF WHAT IS UP. PLEASE LET ME KNOW!

 

Maybe try changing the fuel filter. It sounds like its possibly fuel starving? Have you tried just disconnecting the battery to reset the whole truck? Also, the AC is driven by a belt so it is naturally consuming some of the engine's horsepower.

 

No I haven't but I was honestly thinking about it. So I might change it to see if anything changes. and no I haven't tried disconnecting the battery but Ill give tht a shot and see if anything changes. keep you posted.