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From: JoeSpareBedroom on 15 Jun 2010 15:55
2002 Tacoma. Fuel gauge needle bounces around when the truck's in motion. At
rest, it's as accurate as it was before the problem began. Is the sender at
fault, or is there some sort of buffer circuit tucked away somewhere?


From: Ray O on 16 Jun 2010 01:10

"JoeSpareBedroom" <newstrash(a)frontiernet.net> wrote in message
news:DUQRn.44916$rU6.41503(a)newsfe10.iad...
> 2002 Tacoma. Fuel gauge needle bounces around when the truck's in motion.
> At rest, it's as accurate as it was before the problem began. Is the
> sender at fault, or is there some sort of buffer circuit tucked away
> somewhere?

None of the above. I believe that the fuel gauge has a viscous oil inside
that slows the movement of the needle. If the oil has leaked out, the
needle will move more freely. When you turn the ignition on, does the fuel
gauge needle rise more rapidly than normal and when you turn it off, does it
drop more rapidly? If so, the gauge is probably shot.

--

Ray O
(correct punctuation to reply)


From: JoeSpareBedroom on 16 Jun 2010 08:13
"Ray O" <rokigawa(a)NOSPAMtristarassociates.com> wrote in message
news:hv9mff$jeq$3(a)news.eternal-september.org...
>
> "JoeSpareBedroom" <newstrash(a)frontiernet.net> wrote in message
> news:DUQRn.44916$rU6.41503(a)newsfe10.iad...
>> 2002 Tacoma. Fuel gauge needle bounces around when the truck's in motion.
>> At rest, it's as accurate as it was before the problem began. Is the
>> sender at fault, or is there some sort of buffer circuit tucked away
>> somewhere?
>
> None of the above. I believe that the fuel gauge has a viscous oil inside
> that slows the movement of the needle. If the oil has leaked out, the
> needle will move more freely. When you turn the ignition on, does the
> fuel gauge needle rise more rapidly than normal and when you turn it off,
> does it drop more rapidly? If so, the gauge is probably shot.
>
> --
>
> Ray O
> (correct punctuation to reply)


Ray, the gauge doesn't rise because it doesn't sink in the first place when
the ignition is shut off. It remains at "reading level", and per the manual,
that's normal.


From: Ray O on 17 Jun 2010 22:45

"JoeSpareBedroom" <newstrash(a)frontiernet.net> wrote in message
news:Tf3Sn.61482$mi.23531(a)newsfe01.iad...
> "Ray O" <rokigawa(a)NOSPAMtristarassociates.com> wrote in message
> news:hv9mff$jeq$3(a)news.eternal-september.org...
>>
>> "JoeSpareBedroom" <newstrash(a)frontiernet.net> wrote in message
>> news:DUQRn.44916$rU6.41503(a)newsfe10.iad...
>>> 2002 Tacoma. Fuel gauge needle bounces around when the truck's in
>>> motion. At rest, it's as accurate as it was before the problem began. Is
>>> the sender at fault, or is there some sort of buffer circuit tucked away
>>> somewhere?
>>
>> None of the above. I believe that the fuel gauge has a viscous oil
>> inside that slows the movement of the needle. If the oil has leaked out,
>> the needle will move more freely. When you turn the ignition on, does
>> the fuel gauge needle rise more rapidly than normal and when you turn it
>> off, does it drop more rapidly? If so, the gauge is probably shot.
>>
>> --
>>
>> Ray O
>> (correct punctuation to reply)
>
>
> Ray, the gauge doesn't rise because it doesn't sink in the first place
> when the ignition is shut off. It remains at "reading level", and per the
> manual, that's normal.

Toyota uses 2 types of fuel gauges - some drop to empty when the ignition is
off and some maintain the current reading. In either case, the gauge uses
the fluid to dampen the movement of the needle.
--

Ray O
(correct punctuation to reply)


From: JoeSpareBedroom on 18 Jun 2010 00:36
"Ray O" <rokigawa(a)NOSPAMtristarassociates.com> wrote in message
news:hven0t$chq$1(a)news.eternal-september.org...
>
> "JoeSpareBedroom" <newstrash(a)frontiernet.net> wrote in message
> news:Tf3Sn.61482$mi.23531(a)newsfe01.iad...
>> "Ray O" <rokigawa(a)NOSPAMtristarassociates.com> wrote in message
>> news:hv9mff$jeq$3(a)news.eternal-september.org...
>>>
>>> "JoeSpareBedroom" <newstrash(a)frontiernet.net> wrote in message
>>> news:DUQRn.44916$rU6.41503(a)newsfe10.iad...
>>>> 2002 Tacoma. Fuel gauge needle bounces around when the truck's in
>>>> motion. At rest, it's as accurate as it was before the problem began.
>>>> Is the sender at fault, or is there some sort of buffer circuit tucked
>>>> away somewhere?
>>>
>>> None of the above. I believe that the fuel gauge has a viscous oil
>>> inside that slows the movement of the needle. If the oil has leaked
>>> out, the needle will move more freely. When you turn the ignition on,
>>> does the fuel gauge needle rise more rapidly than normal and when you
>>> turn it off, does it drop more rapidly? If so, the gauge is probably
>>> shot.
>>>
>>> --
>>>
>>> Ray O
>>> (correct punctuation to reply)
>>
>>
>> Ray, the gauge doesn't rise because it doesn't sink in the first place
>> when the ignition is shut off. It remains at "reading level", and per the
>> manual, that's normal.
>
> Toyota uses 2 types of fuel gauges - some drop to empty when the ignition
> is off and some maintain the current reading. In either case, the gauge
> uses the fluid to dampen the movement of the needle.


I'm thinking there's a Ford in my future. This truck is too young for this
kind of bullshit.


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