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89 454 TBI fuel pump question,

Discussion in 'TBI & EFI Conversions' started by Hondo78, Jun 11, 2019 at 10:31 PM.

  1. Hondo78

    Hondo78 Junior Member

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    Location:
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    First Name:
    Roger
    Truck Year:
    1989
    Truck Model:
    3500 crew cab dually
    Engine Size:
    454
    Hello, newbie Square body TBI guy.
    I drove my new 4 door '89 gem home. On the way, the check engine light came on and the power cuts off, then light on, it roars to life, then repeat, repeat, repeat. So I replaced, cap, rotor, ICM in distributor.
    Same issue.
    I'll change fuel filter tomorrow.
    Question here is. As I have two saddle tanks, do I have "Two electric fuel pumps, inside the tanks"? Anyone know for certain?
    Thanks.

    Hondo78-
     
    Last edited: Jun 11, 2019 at 10:36 PM
  2. Craig 85

    Craig 85 Full Access Member

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  3. nvrenuf

    nvrenuf Full Access Member

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    Yes, there is a pump in each tank.
     
  4. Hondo78

    Hondo78 Junior Member

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    Location:
    94531
    First Name:
    Roger
    Truck Year:
    1989
    Truck Model:
    3500 crew cab dually
    Engine Size:
    454
  5. Hondo78

    Hondo78 Junior Member

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    Joined:
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    Location:
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    First Name:
    Roger
    Truck Year:
    1989
    Truck Model:
    3500 crew cab dually
    Engine Size:
    454
    Thanks for the clarification, I'll order one side and give it a test fit.

    Hondo78
     
    nvrenuf likes this.
  6. Craig 85

    Craig 85 Full Access Member

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    Truck Model:
    K30 SRW
    Engine Size:
    454/TH-400/NP205
    One thing to check also is the grounds. I known on my 2010 Denali numerous people have has issues with the main ground cable shorting causing electrical issues. Make sure there is also a ground strap from the engine to the cab and frame.
     

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