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1999 s10 ZR2 loosing power

Just droped a 262--- .40 over with port and polished intake k&n air filter and now i have to put the gas 1/4 farther to reach the same speeds at 65-70 it starts to get vary lagish at 70-75 i cant gain any speed at all without it downshifting 2 gears 75 and up it cant maintain. befor i put the new 4.3l in it it would rocket to 95 time after time. my MPG has droped signeficantly to about 150mil to a tank. i changed the breaks and discoverd that my L rear was locking up i rebilt it and dont smell anything burning from there but the trany smells funny.

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  • 84 Answers

Try the coolant temp sensor and or the 2nd o2 sensor

Posted on May 05, 2009

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I have a 2000 chevy s10 ZR2 4.3L V6. I had just replaced the intake manifold gasket. I went to start it up and have now developed a misfire in cyl 5. I have already put in new plugs and wires. I...


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Hi. I'm reading your request.

Your S10 . has a small fuse box Next to the battery.
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On under hood main fuse block you have.
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