Re: 2001 KIA Sportage 2WD Lack of power above 2500rpm
Problem: While under load or driving, the motor rev's up to about 2500-3000 and then labors to achieve any higher RPM, this occures hot or cold, resulting in not wanting to shift unless you let off the throttle, then after shitfting into the next gear does the same thing laboring @ 2500-3000 RPM and acting as if there is not enough horsepower to go much faster. Note: while not in gear the motor does rev up to 6000rpm with ease.
There are no codes, the Catalylic convertor and pre-catalytic convertor has been removed pressure/flow checked and had a driving test done with them removed which did not change the problem, the Cam sensor has been replaced, the fuel filter has been replaced and a pressure check done, meeting all spec's, pulled a Massflow from a good running 2001 Sportage and tested with no change. I have found no TSB;s regarding this issue.
The motor has 118,000 miles, the head was replaced @ 64,000 miles due to the fan clutch failing sending the fans blades through the radiator and allowing the motor to overheat; all in all the timing belt was replaced at that time, along with spark plugs, which have also been checked.
Have run out of parts to check or replace to resolve the problem.