Re: Low oil pressure...
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 ?
"Ashton Crusher" <Hello@nowhere.net> schreef in bericht
> On Sat, 23 Jul 2005 21:07:51 -0500, "Charles B. Summers, QOF."
> <email@example.com> wrote:
> >We just bought a 2004 Taurus SES about a week ago. We we initially took
> >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
> >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
> >it happened again sitting in our level driveway. I checked the oil and
> >it actually overfilled.
> >I'm going to drain the oil tomorrow and refill it to the proper level,
> >would having too much oil in the engine (3.0) cause low oil pressure?
> >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
> >of other minor issues as well... I just want to hear an unbias opinion.
> 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.