Series 2 Help with a Parasitic fuel gauge

T

TinCup

Member

Posts

11

Location

Canada

• Sep 3, 2021

• #1

Hi all,

I have a parasitic drain in my recently restored ‘59 series 2 that will kill my battery if left with the terminals connected for 24 hours.

I have diagnosed it to be the fuel gauge, which would show a reading when the truck was off. When I remove the wire to the gauge the draw goes away.

Any guesses as to how to correct this or what to look for to resolve it (other than the obvious solution of simply removing the wire permanently - who needs a fuel gauge?!?).

Thanks in advance for any suggestions!

 

saxavordian

Well-Known Member

Posts

9,293

Location

Behind the canvas in Manchester, England.

• Sep 3, 2021

• #2

New sender unit.

 

Shippers

Well-Known Member

Posts

10,693

Location

Algarve

• Sep 3, 2021

• #3

Your guage is wired incorrectly it should be isolated from the live circuit by ignition switch...sounds like it's supply is before the switch...does it read correctly?...

 

Marshall8hp

Well-Known Member

Posts

297

Location

Sydney

• Sep 4, 2021

• #4

Someone has been fiddling with your wiring! It is ignition switched so impossible to be live with the ignition off, unless it has been fiddled with.

 

N

nathanglasgow

Active Member

Posts

362

• Sep 4, 2021

• #5

Did you restore it yourself?

 

C

Colthebrummie

Well-Known Member

Posts

9,870

Location

Thatcham

• Sep 5, 2021

• #6

As others have said, the guage should be isolated with ignition off. Is it reading with ignition off? It could be a short circuit somewhere behind the dash binnicle, there is a lot of wiring back there and stuff rattles loose in old landies.

Col