Question about 2003 Chevrolet Impala

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Had major tune-up and tranny service done now it's hesitating going up hills and the engine light came on blinking and then went off but it loses power going up inclines edit save Saving... Last step

Had major tune-up and tranny service done now it's hesitating going up hills and the engine light came on blinking and then went off but it loses power going up inclines

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  • shaqspop May 30, 2009

    it was a tranny service involving filters and drain and fill not actual tranny service

  • shaqspop May 31, 2009

    what does a catalytic converter go for from the dealer for a 2003 chevy impala?

  • its420_us May 11, 2010

    I would take the vehicle back to the shop that did the work and demand they fix it correctly.

  • marionbagget May 11, 2010

    You can get the error codes. Many auto parts stores will loan the meter to read the codes.



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Sounds like a bad plug wire or coil.

Posted on May 30, 2009

  • Clint Smock
    Clint Smock May 31, 2009

    A lot, dealer will want about 600. But I don't think thats the problem. Have it scanned to see which cylinder was misfiring that caused the check engine light to blink. One of the new wires might be bad, one of the new plugs might be cracked or you might have a bad coil



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Is it a standard or automatic transmission? If standard, your clutch may be slipping. While driving down a straight road, push the brake while still in gear and push the gas pedal as well. If the engine slows with the vehicle, the clutch isn't slipping. If the engine speeds up while the vehicle is slowing down, the clutch is slipping.
If it is an automatic, check the transmission fluid. You may be low and the transmission is slipping while under load, or the torque converter is slipping for the same reason. You may have a bad torque converter clutch switch, but the computer should have picked that up and made your "Check Engine" light come on.
These are the main reasons you would be losing power going up hills unless your engine isn't powerful enough to handle the larger tires on extreme hills. (It takes more power to turn a larger wheel going up hill since the vehile has to travel further for each revolution of a larger tire. Incidentally, have your speedometer checked. You will be going faster than what the speedo says since you put larger tires on.) Good Luck.

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