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fuel filter

Discussion in 'The Garage' started by smking77, Mar 8, 2007.

  1. smking77

    smking77 Registered Member

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    i just got a 82 chevy blazer and i found a switch connected to the fuel filter. is it suppose to be there??
     
  2. smking77

    smking77 Registered Member

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    some 1 please help
     
  3. Dudge

    Dudge 1/2 ton status

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    The fuel filter? Are you sure it's not a fuel pump? I know ppl sometimes ditch the manual pumps in favor of an electric pump, and they sometimes run them by a switch. Does it have wires going to it and the switch mounted in the cab? Or does it have an actual switch on the body?
     
  4. smking77

    smking77 Registered Member

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    i looked it up on the net and it said fuel filter. the filter is mounted under the truck and there is a switch in the truck that i followed and it led to the filter. when i turn the switch on the filter makes a buzzing sound
     
  5. Elevator Man

    Elevator Man 1/2 ton status

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    Its an inline pump! will the truck run with it turned off?
     
  6. smking77

    smking77 Registered Member

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    yea the truck runs with it off. i just want to know if i need to turn it on or how its suppose to work
     
  7. dyeager535

    dyeager535 1 ton status Premium Member

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    It's not factory, so no telling why its there.

    Probably installed to replace the stock mechanical fuel pump and they couldn't get it to work right.
     
  8. stoney126

    stoney126 1/2 ton status

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    there a company name on it? any model numbers perhaps?
     
  9. Jason4x4

    Jason4x4 1/2 ton status

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    I would imagine someone probably had some vapor locking issues so they added a booster pump.
     
  10. TexasBlazerBoy

    TexasBlazerBoy 1/2 ton status

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    With the switch set to the off position, could it be a theft deterent device?

    No fuel no start? or am I way off
     
  11. smking77

    smking77 Registered Member

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    the maker of the part is napa auto parts and the model # is 3033. if i leave the switch on the filter stays on and u can hear it buzzing. so if im driving do i need it on?
     
  12. BKinzey

    BKinzey 1/2 ton status

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    The buzzing most likely just means it's running. As mentioned the PO probably put it on there. Why? Who knows?:confused:
     
  13. smking77

    smking77 Registered Member

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    when i get in the truck should i turn it on or should i just leave it off
     
  14. gmc4cw

    gmc4cw 1/2 ton status GMOTM Winner

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    when I went to Napa's site the part number you listed is a basic inline fuel filter. no wires. My geuss is that you have a electric fuel pump mounted somewhere very close to this filter. see how long the truck will run with the switch turned off. if the tank has gas and the truck shuts off after a few minutes then you have an electric pump controlled by the switch. Or take a picture and post it so we can see what you are talking about.
     
  15. Leper

    Leper 1/2 ton status

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    He can't post pics. Not a member.
     

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