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tbi issues

Discussion in 'TBI & EFI Conversions' started by lucifer6669, Oct 1, 2019.

  1. lucifer6669

    lucifer6669 Junior Member

    Posts:
    1
    Likes Received:
    0
    Joined:
    Oct 1, 2019
    Location:
    las vegas
    First Name:
    jaime
    Truck Year:
    1986
    Truck Model:
    jimmy
    Engine Size:
    350 from a 94 suburban
    im new here and i just recently bought a 86 gmc jimmy with a 350 motor from a 94 suburban. My current issues is the throttle getting stuck open sometimes when i hit the pedal. and when it gets stuck i have to pull up on the pedal for it to go back to normal. what can be the cause? nothing out of the ordinary that i see. thanks for the help
     
  2. 85squaredC10

    85squaredC10 Junior Member

    Posts:
    10
    Likes Received:
    20
    Joined:
    May 8, 2020
    Location:
    Wisconsin
    First Name:
    Jason
    Truck Year:
    1985
    Truck Model:
    C10
    Engine Size:
    350 TBI
    Sounds like the throttle return spring in the throttle body is weak/broken. Replace that or add a throttle return spring like in a carburetor setup and you should be good.

    Sent from my SM-G965U1 using Tapatalk
     
    Angie K likes this.

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