Question about 1994 Chevrolet Corvette

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1994 LT1 Engine "balks" under acceleration intermittently

Intermittently under moderate heavy to heavy acceleration the engine will start to "balk" and sometimes "buck" a little. Further pressure on the accelerator makes it worse. You can press the accelerator way down but the RPM doesn't change and engine seems to bog down. If you let up and drive it normally you can get by, but any hard acceleration causes the problem again. It seems to develope after driving for about 45 minutes. I can't really say that it is related to engine temp though.
If you drive the whole time like an "old lady", the problem never surfaces.

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Your fuel pump or your catalytic is plugged. have it tested with a infrared gun it will tell you if the cat is bad and if it is replace it test the fuel pump for fuel rail pressure it should read 50 psi then hold to 20 psi for 1 minute.. Also check to see if the intake plate is dirty and if it is do a top engine clean, buy GM's top engine cleaner and run it threw the engine, if you have carbon buildup the compression and cause the car to run bad and the knock sensor will not be able to adjust time. I know this sounds silly but these three things will cause your problem and so will a bad fuel filter.

Posted on Jul 22, 2009

  • zane bane
    zane bane Oct 11, 2013

    yall dumb as hell i swear

  • zane bane
    zane bane Oct 11, 2013

    dafuq yall talkin bout

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