Question about 2002 Chevrolet Express

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Check engine light flashing

I have a 2002 chev express van that the check engine light flashes on and off leaves no codes and looses power going up hills worse with a/c on has new plugs cap rotor coil injectors were cleaned and fuel system flushed been going on since around 60000 mile back and fourth to dealer better since last time but still there it was shaking and had to be turned on off then would run ok till going up a hill or giving a alot of gas then would return doesn't shake or the check engine light doesn't stay on also have express 2500 2001 and the brake lights won't work when the lights are on the middle light lights up but the one on rt and lt side go out ok when lights are not on this happens on both vans??

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  • smohler1 May 29, 2009

    the problem is it would quit shaking you can turn the power off and on then runs ok until happens again

  • Anonymous Mar 27, 2014

    Flashing engine light an speed 65 check the code is p0300



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If it shaking it could be suspension. tires bent axel and rim. but that wouldnt cause to lose power...
fuel air spark ratio isnt right. that is just what it sounds like.
ignition time could be off.
in proper fuel adjestment in the carb/ or if fuel injected..
thats a breif idea of what i got from it..

Posted on May 29, 2009


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