Will a float installed backwards cause fuel gauge to be erratic or just misreading?

Tiny
DAONEBY
  • MEMBER
  • 2012 CHEVROLET AVALANCHE
  • 5.3L
  • V8
  • 4WD
  • AUTOMATIC
  • 229,000 MILES
Is there a picture of how a float should properly move?
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Sunday, July 3rd, 2022 AT 9:22 PM

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Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

If the float is not making proper connection with the resistor panel it will cause it to give erratic reading on the gauge.
The float goes just one way into the pump. If it is backwards, it will not fit or attach.

https://www.2carpros.com/articles/how-to-replace-an-electric-fuel-pump

See attached picture for your reference.

Let me know of any questions.
Thank you.
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Sunday, July 3rd, 2022 AT 11:00 PM

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