1994 s10 electrical help

Discussion in 'Chevy S10 Forum (GMC Sonoma)' started by glsawyer.drig, Mar 3, 2017.

  1. glsawyer.drig

    glsawyer.drig Member

    I am now trying to figure out why I lose gauges when I turn the lights on.

    And why my blinkers are really fast even though the are all good
     
  2. silverado002

    silverado002 Rockstar 3 Years 1000 Posts

    A schematic I found on the web shows power for the fuel pump motor coming from 2 places. 12 v through the oil pressure switch and also from the fuel pump relay. Question do you have a 4 wire oil pressure switch?
    Also can you check your parking light ground to make sure it is clean and good.
     
  3. glsawyer.drig

    glsawyer.drig Member

    I intend to run new grounds for them tomorrow. I will also check the op sender
     
  4. silverado002

    silverado002 Rockstar 3 Years 1000 Posts

    Ok but to continue troubleshooting this problem you will have to undo your jumper wires so we can get back to the original problem. Have a restful night. By the way is this a v6 or 4 cylinder?
     
  5. glsawyer.drig

    glsawyer.drig Member

  6. glsawyer.drig

    glsawyer.drig Member

    Ok. Oil and temp gauges fixed. Fuel pump rewired and not losing power anymore. Gauges don't quite when lights are on.....I put in a new gauge cluster. Heater and vents working properly now.


    So now to last of my problems.

    At higher rpm the fuel gauge wigs out.
    Blinkers still fast.
    Sometimes the speedo pegs out
     
  7. glsawyer.drig

    glsawyer.drig Member

    Fuel gauge fixed. Bad ground.

    Now just blinkers are to fast
     
  8. silverado002

    silverado002 Rockstar 3 Years 1000 Posts

    Good job. Fast turn signals sounds like another bad ground in the rear of the truck possibly.
     
  9. glsawyer.drig

    glsawyer.drig Member

    Found issue lol. It was the flasher relay
     
  10. silverado002

    silverado002 Rockstar 3 Years 1000 Posts

    Way to go. You're knocking them out one at a time.
     

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