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    5.7 TBI 5-speed stumbles when I let off gas

    Turned out to be the EGR valve. I was convinced that couldn't be it...
  2. S

    5.7 TBI 5-speed stumbles when I let off gas

    I've got a 1991 K1500. The initial issue was stumbling under load. I replaced the fuel regulator and the EGR solenoid (due to a code) and that seemed to fix the stumble under load. Now I have this most curious symptom wherein it stumbles when I let *off* the gas. If I leave it in gear and let...
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