Question about 1993 Chevrolet S-10

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1993 chevy s10 power loss

93 s10 4.3l losing power only when driving and the colder it gets the worse, but when it is park the engine can rev up perfect. trying to get on highway was a disaster, wouldnt get up yo 55. got code 35 (idle air control) and 44 (O2 sensor), i changed both and get same codes and didnt change the power loss

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  • Wayne Hartt
    Wayne Hartt Jul 13, 2017

    Had the same problem with my 91 iron duke changed every sensor and then the water pump and alternator went, eventually i had to change the rad it was basically falling out and when i looked inside it was plugged not allowing coolent through. i put one out of a 4.3 in it Its never ran cooler or smoother since! It solved all the loss of power and bucking problems.

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Hi. I would try changing the fuel filter. If its partially plugged up you could be starving for gas and that can make your emmission sensors give bad readings. Cant gurentee it, but it would be a place to start.

Posted on Mar 15, 2009

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Posted on Jan 02, 2017

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