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Goldenballs

Member Since: 22 Apr 2021
Location: UK
Posts: 92

Fuel gauge swings

Hello!

My fuel gauge drops quite significantly when turning right. Ordinary I’d say this is “normal” due to the fuel motion in the tank, but I don’t think I’ve noticed it before. Does this mean my fuel pump / sender is on the way out?

17th Feb 2022 11:44pm

Dinnu

Member Since: 24 Dec 2019
Location: Lija
Posts: 3653

2012 Defender 90 Puma 2.2 CSW Santorini Black

Does your speedometer works? This behavior also happens when the speedo is disconnected from the transducer. 1988 90 Hard Top, 19J Diesel Turbo, Shire Blue - Restoration ongoing
2012 90 CSW, 2.2TDCI, Santorini Black

18th Feb 2022 5:50am

Goldenballs

Member Since: 22 Apr 2021
Location: UK
Posts: 92

You’re correct! How on Earth are they linked?

20th Feb 2022 4:50pm

diesel_jim

Member Since: 13 Oct 2008
Location: hiding
Posts: 6218

^^^^ because the fuel guage "damping" circuitry is built into the speedo itself

Mine went wrong some time back, so when the fuel level got to about 3/4 tank the guage would drop down to not much. I bypassed the speedo wiring so the guage runs directly off of the sender unit now.

OK when you drive along it flips around like an old series 2 guage, but at least its accurate. Might try and graft in a Series 3 damper unit if I can find one.

21st Feb 2022 6:57am

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