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check valve

Discussion in 'General Chevy & GM Tech Questions' started by abuelito, Jun 17, 2008.

  1. abuelito

    abuelito New Member

    got a 2007 youkon xl,,,i am in mexico,i got some bad gas which isnt hard to do,and i believe the check that stops the gas from returning to the tank is fouled,,,when i turn off the truck and go to restart,i have to try 3 times to get it to start,i went to a dealer here and wow,rip off dealer,,they wanted to change my oil and all filters before they would check for the problem,i told them i just changed oil and filters,they said it must be done in mexico,wow,well can some one tell me where the check valve is located,thank you

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