tbi idle issues

  1. B

    1987 Chevrolet Suburban 4X4 5.7 TBI

    Good morning fellow Squarebody owners!! My 1987 Chevrolet Suburban started giving low idle stall out issues and I hooked up my Snap On MT2500 scanner and found the issue. A bad IAC valve. No problem. I changed it and it runs great........EXCEPT.........when I plug in the cigarette lighter...

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