Question about Chevrolet Blazer

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2 days in a row my Blazer has stalled out, once while in traffic driving. Once sitting in a parking place getting ready to turn key off. It shut itself off both times, then won't restart, turn the key it cranks but acts like no gas. Both shops can't find anything wrong even test driving it.

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  • tobemore Jul 30, 2009

    That is what the tow truck driver said, the chevy dealer is keeping it overnight again with something hooked up to it, had it driven today a couple of times and it drove fine. It has been sitting outside for 1 year. not being run, we replaced the battery after 1st stall nothing else was found wrong after diagnostic check the next day it stalled after only a few miles of driving?


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Being un-able to duplicate the problem by the repair shops is un-fortunate.I appreciate their un-willingness to guess and throw parts at your expense.I have owned a couple of Blazers and each of them have required fuel pumps while both have had simular symptoms.To substantiate my guess you might start by listening to the pump.Key on/engine off will cycle the pump for 3 seconds.In a quiet area,such as an enclosed garage,you can cycle the key and listen to the sound of the pump which is rear tank mounted.Often a failing pump will sound louder and squeelish in a sense while a new pump is barely noticeable and smooth sounding.This is a fairly educated guess for your problem....good luck on your findings

Posted on Jul 30, 2009

  • Jeff Barton
    Jeff Barton Jul 30, 2009

    Once you have the vehicle back ,consider adding Chevron Techron 20oz treatment to the tank as this will do great things to the entire engine after this long sit.This particular additive is highly approved by GM engineering and has been packaged for GMs use in certain car lines....


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