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Author Topic: Fuel gauge quits after 35 minutes of driving, back on after sits  (Read 2273 times)

AllenF

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Fuel gauge quits after 35 minutes of driving, back on after sits
« on: May 27, 2021, 14:53:32 »
Hi Folks,

Here's an odd one...my 230SL fuel gauge will reliably go crazy and then fail after about 30 minutes of driving.  Very repeatable.  It then returns to normal after the car is shut off.  It's a new gauge, but I realize that means nothing.  Very funny.

Ideas?

Thanks!  Allen
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FGN59

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Re: Fuel gauge quits after 35 minutes of driving, back on after sits
« Reply #1 on: May 27, 2021, 18:15:09 »
I don’t have any idea about the fuel gauge issue you describe , but I have to tell you your car is absolutely gorgeous!
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François

1994 Toyota Land Cruiser SW HDJ80 4.2L diesel
sold:
1969 280SL US specs, 4-speed manual, beige-grey (726H), parchment leather
1962 Jaguar MK2 3.8L (4.2L XJ6 engine), black, tan leather interior
1968 Peugeot 204 roadster, white, black interior
1955 Massey Ferguson TEF20 diesel tractor 😁

lpeterssen

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Re: Fuel gauge quits after 35 minutes of driving, back on after sits
« Reply #2 on: May 28, 2021, 11:03:41 »
I suspect from the ground post at the trunk.

They feed the ground needed to operate the fuel gauge and fuel pump.

Doble check those connections integrity. It is next to the wheel arch from inside the trunk. Clean, polish, etc.

Best regards
L.peterssen
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