« previous next »
Pages: [1]   Go Down

Author Topic: Fuel Gauge  (Read 2763 times)

Offline A robs 23

  • Newbie
  • Posts: 48
  • Newbie
Fuel Gauge
« on: March 26, 2021, 11:17:59 pm »
I have read through the forums. Please let me know if I am on the right track with this.

Fuel gauge pinned past FULL.

I pulled off the connector, from the sending unit. I have touched the connector to a proper ground and my gauge drops back to EMPTY. I believe I have a faulty sending unit.

I dont have a potentiometer unfortunately and am not completely sure how I can wire this inline with my headlight dimmer to verify gauge function. Although, its a brand new gauge.


Sent from my iPhone using Tapatalk
Logged

Offline VileZambonie

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 19167
Re: Fuel Gauge
« Reply #1 on: March 27, 2021, 07:41:59 am »
Pinned past full is an indicator of an open circuit (infinite resistance). If zero resistance makes the gauge respond to E, then it seems like you have a faulty sending unit. You can run a jumper wire off of the sending unit to a good ground to see if there's any change as well.

Plug in a new sending unit and move the float to see if the gauge responds correctly before installing it.
Logged
,                           ___ 
                         /  _ _ _\_
              ⌠ŻŻŻŻŻ'   [☼===☼]
              `()_);-;()_)--o--)_)

74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline A robs 23

  • Newbie
  • Posts: 48
  • Newbie
Re: Fuel Gauge
« Reply #2 on: March 27, 2021, 06:20:36 pm »
Thank you!


Sent from my iPhone using Tapatalk
Logged
Pages: [1]   Go Up
« previous next »