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Quadrajet problems

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by ankarback, Aug 7, 2005.

  1. ankarback

    ankarback 1/2 ton status

    Joined:
    Oct 8, 2002
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    Location:
    Huddinge, Sweden
    My blazer has a 350 with a Rochester Quadrajet from -85 on it. When I was out wheeling yesterday it started getting a really rough idle and it smelled like it was going way too rich. Suddenly when I just had climed a big hill the idle got stuck around 3000rpm and wouldn´t go back down. I couldn´t see anything wrong with the carb or the throttlelinkage so finaly i removed the carb from the engine and tried to shake it just to see what happened.

    That actually made it run normally again but after a short while to idle got real rough again and when I was driving home I lost the idle completely. Now the engine dies when I let go of the gas and that´s very frustrating. I almost run over a big roadsign when I lost the powersteering. :doah:

    Anyone heard of this problem. I can´t see anything wrong with the carb so I´m thinking of taking it apart. Anything special to look for?
     

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