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Old 07-23-2005, 20:01   #1 (permalink)
Charles B. Summers, QOF.
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Posts: n/a
Low oil pressure...

We just bought a 2004 Taurus SES about a week ago. We we initially took it
for a test ride, the console showed Low Oil Pressure on the little screen
thing, but went off and never came back on. I asked the salesman about this
and was told that it was because the car was sitting on a hill, with the
front of the car positioned the highest. Three days later, my wife tells me
it happened again sitting in our level driveway. I checked the oil and found
it actually overfilled.

I'm going to drain the oil tomorrow and refill it to the proper level, but
would having too much oil in the engine (3.0) cause low oil pressure? I've
always heard having too much oil was as bad as not having enough oil. Is
this true?

The car is still under warrenty and will be going to the shop for a couple
of other minor issues as well... I just want to hear an unbias opinion.
Thanks!



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Old 07-24-2005, 01:01   #2 (permalink)
Happy Traveler
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Posts: n/a
Re: Low oil pressure...

A salesman once told me that the fuel injected car I was buying needed its
choke cleaned... The people who know something about cars work in the
service department; those who can sweet-talk a customer work in sales.

Not familiar with your vehicle and its 'little screen'. Are you sure it was
'low pressure', not 'low oil level' alert? Low pressure warning is typically
a big red light, saying 'Engine' or something like that, not a barely
noticeable message on a little screen.

If it's under warranty and going for service, I would advise you:
a) If you are positive about the 'low pressure' warning, not to drive the
car and call the dealer for instructions.
b) Not to do anything (including draining oil) before you bring it in
b) Insist on a service guy, not a salesman explaining what the problem was
and how they fixed it. If it was indeed low pressure warning, I would like
to see readings from a mechanical gauge (warm engine), even if they
diagnosed it as a bad sender.


"Charles B. Summers, QOF." <hidingmyreal@ddress.phacue> wrote in message
news:yP6dncEsVvh0an_fRVn-rQ@comcast.com...
> We just bought a 2004 Taurus SES about a week ago. We we initially took it
> for a test ride, the console showed Low Oil Pressure on the little screen
> thing, but went off and never came back on. I asked the salesman about

this
> and was told that it was because the car was sitting on a hill, with the
> front of the car positioned the highest. Three days later, my wife tells

me
> it happened again sitting in our level driveway. I checked the oil and

found
> it actually overfilled.
>
> I'm going to drain the oil tomorrow and refill it to the proper level, but
> would having too much oil in the engine (3.0) cause low oil pressure? I've
> always heard having too much oil was as bad as not having enough oil. Is
> this true?
>
> The car is still under warrenty and will be going to the shop for a couple
> of other minor issues as well... I just want to hear an unbias opinion.
> Thanks!
>
>
>



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Old 07-24-2005, 12:01   #3 (permalink)
Scott
Guest
 
Posts: n/a
Re: Low oil pressure...


"Charles B. Summers, QOF." <hidingmyreal@ddress.phacue> wrote in message
news:yP6dncEsVvh0an_fRVn-rQ@comcast.com...
> We just bought a 2004 Taurus SES about a week ago. We we initially took it
> for a test ride, the console showed Low Oil Pressure on the little screen
> thing, but went off and never came back on. I asked the salesman about
> this and was told that it was because the car was sitting on a hill, with
> the front of the car positioned the highest. Three days later, my wife
> tells me it happened again sitting in our level driveway. I checked the
> oil and found it actually overfilled.
>
> I'm going to drain the oil tomorrow and refill it to the proper level, but
> would having too much oil in the engine (3.0) cause low oil pressure? I've
> always heard having too much oil was as bad as not having enough oil. Is
> this true?
>
> The car is still under warrenty and will be going to the shop for a couple
> of other minor issues as well... I just want to hear an unbias opinion.
> Thanks!


Hi,

Used? Rental? Either way, don't drain any oil, take it straight to the
service dept. where you bought it. If you didn't buy an extended warranty
you might give that some heavy thought too.
How many miles? I have a great tendency to believe idiot lights and guages,
I would probably try to take this car back for a refund. And I usually
don't
get buyers remorse.

PS Overfilling the oil a little is not likely to make your low oil
pressure light go on.


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Old 07-24-2005, 12:01   #4 (permalink)
Ashton Crusher
Guest
 
Posts: n/a
Re: Low oil pressure...

On Sat, 23 Jul 2005 21:07:51 -0500, "Charles B. Summers, QOF."
<hidingmyreal@ddress.phacue> wrote:

>We just bought a 2004 Taurus SES about a week ago. We we initially took it
>for a test ride, the console showed Low Oil Pressure on the little screen
>thing, but went off and never came back on. I asked the salesman about this
>and was told that it was because the car was sitting on a hill, with the
>front of the car positioned the highest. Three days later, my wife tells me
>it happened again sitting in our level driveway. I checked the oil and found
>it actually overfilled.
>
>I'm going to drain the oil tomorrow and refill it to the proper level, but
>would having too much oil in the engine (3.0) cause low oil pressure? I've
>always heard having too much oil was as bad as not having enough oil. Is
>this true?
>
>The car is still under warrenty and will be going to the shop for a couple
>of other minor issues as well... I just want to hear an unbias opinion.
>Thanks!
>
>


Salesmen are usually idiots and/or completely ignorant of anything but
financing terms. Many will say anything to make a sale.

Don't do anything but take it back and explain what it's doing and ask
them to fix it. When they claim it's fixed, ask them what they did.
It is not at all unusual for the pressure senders to go bad and cause
the light to come on indicating low pressure. And it's very easy for
them to test the actual pressure by hooking up a real pressure gauge
in the shop. Half an hours work and they will know whether it's the
sender or a real engine problem. It is very unlikely it's actually
overfilled. All the recent cars I've had have shown "overfilled" on
the dipstick when the correct amount of oil is put in them. I think
it's how the manufacturers cut down on complaints about "oil burning".
By making the dipstick calibration so that with the right amount it
shows a half quart "over filled", it can burn a quart every 3000 miles
but you'll think it only burned half a quart because it would only
take you half a quart to bring it back to the full mark. Basically
it's a way for the casual owner to think it never burns any oil
because it will almost never drop down to the add oil mark because it
would have to use almost 1.5 quarts to do so, most cars only burn a
quart between changes. Many burn much less.
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Old 07-24-2005, 12:01   #5 (permalink)
Brian
Guest
 
Posts: n/a
Re: Low oil pressure...

Hello,

My penny's worth ...

Overfilling can cause serious problems if the crankshaft touches the oil
surface and causes the oil to foam. The air in this foam is sucked into the
oil pump, and causes the pressure to drop. If this situation persists it can
cause damage. Usually it should inflict this damage from the first drive.

I'm not sure, but when the oil level descends below "touch height" as it is
pumped into the engine, the oil pressure could be restored, avoiding damage.
Anyone can correct me ?

Brian

"Ashton Crusher" <Hello@nowhere.net> schreef in bericht
news:f3n7e1d4ovaqk7l09bndvtdb9cbjilpt0k@4ax.com...
> On Sat, 23 Jul 2005 21:07:51 -0500, "Charles B. Summers, QOF."
> <hidingmyreal@ddress.phacue> wrote:
>
> >We just bought a 2004 Taurus SES about a week ago. We we initially took

it
> >for a test ride, the console showed Low Oil Pressure on the little screen
> >thing, but went off and never came back on. I asked the salesman about

this
> >and was told that it was because the car was sitting on a hill, with the
> >front of the car positioned the highest. Three days later, my wife tells

me
> >it happened again sitting in our level driveway. I checked the oil and

found
> >it actually overfilled.
> >
> >I'm going to drain the oil tomorrow and refill it to the proper level,

but
> >would having too much oil in the engine (3.0) cause low oil pressure?

I've
> >always heard having too much oil was as bad as not having enough oil. Is
> >this true?
> >
> >The car is still under warrenty and will be going to the shop for a

couple
> >of other minor issues as well... I just want to hear an unbias opinion.
> >Thanks!
> >
> >

>
> Salesmen are usually idiots and/or completely ignorant of anything but
> financing terms. Many will say anything to make a sale.
>
> Don't do anything but take it back and explain what it's doing and ask
> them to fix it. When they claim it's fixed, ask them what they did.
> It is not at all unusual for the pressure senders to go bad and cause
> the light to come on indicating low pressure. And it's very easy for
> them to test the actual pressure by hooking up a real pressure gauge
> in the shop. Half an hours work and they will know whether it's the
> sender or a real engine problem. It is very unlikely it's actually
> overfilled. All the recent cars I've had have shown "overfilled" on
> the dipstick when the correct amount of oil is put in them. I think
> it's how the manufacturers cut down on complaints about "oil burning".
> By making the dipstick calibration so that with the right amount it
> shows a half quart "over filled", it can burn a quart every 3000 miles
> but you'll think it only burned half a quart because it would only
> take you half a quart to bring it back to the full mark. Basically
> it's a way for the casual owner to think it never burns any oil
> because it will almost never drop down to the add oil mark because it
> would have to use almost 1.5 quarts to do so, most cars only burn a
> quart between changes. Many burn much less.



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Old 07-24-2005, 14:01   #6 (permalink)
MajorDomo@mailcity.com
Guest
 
Posts: n/a
Re: Low oil pressure...

No, the oil level has nothing to do with the pressure unless
there is not enough oil to cover the pump intake. The sender is
likely the source of the fault.


mike hunt

"Charles B. Summers, QOF." wrote:
>
>
> would having too much oil in the engine (3.0) cause low oil pressure? I've
> always heard having too much oil was as bad as not having enough oil. Is
> this true?
>
> The car is still under warrenty and will be going to the shop for a couple
> of other minor issues as well... I just want to hear an unbias opinion.
> Thanks!

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Old 07-24-2005, 14:01   #7 (permalink)
MajorDomo@mailcity.com
Guest
 
Posts: n/a
Re: Low oil pressure...

Can we assume you earned your degree in something other than
engineering? ;)


mike hunt



Brian wrote:
>
> Hello,
>
> My penny's worth ...
>
> Overfilling can cause serious problems if the crankshaft touches the oil
> surface and causes the oil to foam. The air in this foam is sucked into the
> oil pump, and causes the pressure to drop. If this situation persists it can
> cause damage. Usually it should inflict this damage from the first drive.
>
> I'm not sure, but when the oil level descends below "touch height" as it is
> pumped into the engine, the oil pressure could be restored, avoiding damage.
> Anyone can correct me ?
>
> Brian
>

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Old 07-24-2005, 15:01   #8 (permalink)
Charles B. Summers, QOF.
Guest
 
Posts: n/a
Re: Low oil pressure...

Thanks everyone... I've already changed the oil, so I hope that didn't screw
anything up. It's going to the dealer this week anyway.


<MajorDomo@mailcity.com> wrote in message
news:42E3FCAE.A47E043C@mailcity.com...
> No, the oil level has nothing to do with the pressure unless
> there is not enough oil to cover the pump intake. The sender is
> likely the source of the fault.
>
>
> mike hunt
>
> "Charles B. Summers, QOF." wrote:
>>
>>
>> would having too much oil in the engine (3.0) cause low oil pressure?
>> I've
>> always heard having too much oil was as bad as not having enough oil. Is
>> this true?
>>
>> The car is still under warrenty and will be going to the shop for a
>> couple
>> of other minor issues as well... I just want to hear an unbias opinion.
>> Thanks!



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Old 07-24-2005, 23:01   #9 (permalink)
Ashton Crusher
Guest
 
Posts: n/a
Re: Low oil pressure...

On Sun, 24 Jul 2005 16:19:47 -0500, "Charles B. Summers, QOF."
<hidingmyreal@ddress.phacue> wrote:

>Thanks everyone... I've already changed the oil, so I hope that didn't screw
>anything up. It's going to the dealer this week anyway.
>


It shouldn't. Please post the results when you find out what's wrong.


>
><MajorDomo@mailcity.com> wrote in message
>news:42E3FCAE.A47E043C@mailcity.com...
>> No, the oil level has nothing to do with the pressure unless
>> there is not enough oil to cover the pump intake. The sender is
>> likely the source of the fault.
>>
>>
>> mike hunt
>>
>> "Charles B. Summers, QOF." wrote:
>>>
>>>
>>> would having too much oil in the engine (3.0) cause low oil pressure?
>>> I've
>>> always heard having too much oil was as bad as not having enough oil. Is
>>> this true?
>>>
>>> The car is still under warrenty and will be going to the shop for a
>>> couple
>>> of other minor issues as well... I just want to hear an unbias opinion.
>>> Thanks!

>


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Old 07-25-2005, 15:01   #10 (permalink)
FanJet
Guest
 
Posts: n/a
Re: Low oil pressure...

MajorDomo@mailcity.com wrote:
> Can we assume you earned your degree in something other than
> engineering? ;)
>
>
> mike hunt


Can we assume the oil pumps in your cars are happily pumping air like you
pump BS?


> Brian wrote:
>>
>> Hello,
>>
>> My penny's worth ...
>>
>> Overfilling can cause serious problems if the crankshaft touches the
>> oil surface and causes the oil to foam. The air in this foam is
>> sucked into the oil pump, and causes the pressure to drop. If this
>> situation persists it can cause damage. Usually it should inflict
>> this damage from the first drive.
>>
>> I'm not sure, but when the oil level descends below "touch height"
>> as it is pumped into the engine, the oil pressure could be restored,
>> avoiding damage. Anyone can correct me ?
>>
>> Brian



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