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  1. V

    1988 350 TBI Uneven Idle?

    Thanks! That makes good sense, I'll check over the engine soon, as for the running condition, this problem only seems to occur when it's idling. I'm not sure if the dash lights work or not, but the check engine isn't on
  2. V

    1988 350 TBI Uneven Idle?

    Picked up a 1988 K3500 last year with what I believe to be a TBI 350. Runs great and has under 100k kilometres on it, but at idle it bogs down to a near stall before returning to normal idle speed. Any ideas on what's wrong? (It's got an SM-465 in it if that helps)
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