1996 Chevrolet S-10

Engine Performance problem
1996 Chevy S-10 6 cyl Four Wheel Drive Automatic 149000 miles

I bought a Chevy s10 and changed oil, plugs, wires and brakes. Had to take trip for work and put about 3 to 5k miles on it and it started hesitating if I took it over 60mph. I cleaned maf changed fuel filter, etc sensor, pcv valve(Grommet also), put injector cleaner in. It runs longer with out hesitations but new problem showed up when I turn it off for long periods of time (2 hours so far) it will hesistate on first accelleration and be fine after that. Checked all vacuum hoses also.

Changed the Throttle Position Sensor and this seems to have fixed the issue. Thanks
April 7, 2010.

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