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From: Cage22 on 9 Jul 2010 20:18
I just had my truck in the shop for 3 days to get the gas gauge fixed.
They tested the sending unit (OK). Then replaced the dash panel still
not dice. The gauge is always registering some amount of fuel towards
empty unless you fill it up. If I fill up it will register close to
full but the next time I start it up back towards empty. Any ideas?

Thanks.
From: Scott Dorsey on 10 Jul 2010 16:04
Cage22 <Cage22(a)Verizon.net> wrote:
>I just had my truck in the shop for 3 days to get the gas gauge fixed.
>They tested the sending unit (OK). Then replaced the dash panel still
>not dice. The gauge is always registering some amount of fuel towards
>empty unless you fill it up. If I fill up it will register close to
>full but the next time I start it up back towards empty. Any ideas?
>Thanks.

If it's not the sending unit and it's not the gauge, it's something
in-between the two. Which is to say a bad connector, wire, or chassis
ground point. You start at the sending unit with a multimeter and work
your way forward until you find the problem, one step at a time.
--scott

--
"C'est un Nagra. C'est suisse, et tres, tres precis."
From: Mark Olson on 10 Jul 2010 16:49
Scott Dorsey wrote:
> Cage22 <Cage22(a)Verizon.net> wrote:
>> I just had my truck in the shop for 3 days to get the gas gauge fixed.
>> They tested the sending unit (OK). Then replaced the dash panel still
>> not dice. The gauge is always registering some amount of fuel towards
>> empty unless you fill it up. If I fill up it will register close to
>> full but the next time I start it up back towards empty. Any ideas?
>> Thanks.
>
> If it's not the sending unit and it's not the gauge, it's something
> in-between the two. Which is to say a bad connector, wire, or chassis
> ground point. You start at the sending unit with a multimeter and work
> your way forward until you find the problem, one step at a time.

My mother's Camry (ex-Hertz car) had a similar story- multiple
replacements of the sending unit, and the gauge (by Hertz),
before someone decided to actually troubleshoot the problem
instead of replacing parts and hoping. It turned out to be
pinched wires under the rear seat, due to an earlier crash.

It was all covered by Toyota under warranty even though it was
obviously due to crash damage while Hertz owned it, so top marks
to Toyota and the Toyota dealership.






From: Steve W. on 10 Jul 2010 17:43
Scott Dorsey wrote:
> Cage22 <Cage22(a)Verizon.net> wrote:
>> I just had my truck in the shop for 3 days to get the gas gauge fixed.
>> They tested the sending unit (OK). Then replaced the dash panel still
>> not dice. The gauge is always registering some amount of fuel towards
>> empty unless you fill it up. If I fill up it will register close to
>> full but the next time I start it up back towards empty. Any ideas?
>> Thanks.
>
> If it's not the sending unit and it's not the gauge, it's something
> in-between the two. Which is to say a bad connector, wire, or chassis
> ground point. You start at the sending unit with a multimeter and work
> your way forward until you find the problem, one step at a time.
> --scott
>

Could be the fuel level buffer unit. It should be stuck to the bottom of
the glove box.

--
Steve W.
(\___/)
(='.'=)
(")_(")
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