Question about 2001 Chevrolet Blazer

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2001 chevy blazer keeps bloging out

Fuel pump replaced,fuel filter replaced air filter replaced new spark plugs and a few other parts replaced was running good but now at about 30 mph it starts to blog out, help

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  • Ryan Lutton
    Ryan Lutton Apr 02, 2015

    Hi Susan Valencia, I want to help you with your question, but I need more information from you. Can you please add details in the comment box? Was the cap and rotor replaced prior to this problem?

  • Susan Valencia Apr 04, 2015

    Yes the cap and rotor was replaced, fuel pump gas fliter the cat was supposed to be replaced at least i gave him 130.00 for it i just had a new air filter put in it because i had w air filter in it becausei replaced the spark plugs and its running a little better but not the way it should be

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Another possibility is a plugged cat, you can get a backpressure gauge pretty cheap,unscrew the o2 sensor before the cat, install the gauge,hold the throttle up to 2500 rpm, if the gauge stays above 2to3 psi, you probably have a plugged cat, you might get under the truck and hit the converter with your hand to see if it rattles.

Posted on Apr 02, 2015

  • Susan Valencia
    Susan Valencia Apr 03, 2015

    The person that worked on it said he replaced the cat, it least that is what I paid him for, that's what happens when your a female, the place who sold me it found a sucker

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Make sure all your vacuum hoses are connected and in place, also might want to check out the pcv valve usually located on the valve cover. You can also have the fuel regulator checked out... hope one of these things takes care of your problem.

Posted on Apr 02, 2015

  • Susan Valencia
    Susan Valencia Apr 03, 2015

    This is what I had replaced, fuel pump, filter fuel, roter cap,air filter spark plugs the cat, fuses and a few others parts these are things I paid to have done, just what he did I'm not sure, I think he found a sucker when he found me so upset about the hole thing

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