Date:         Thu, 1 Oct 2015 16:50:11 -0500
Reply-To:     mcneely4@COX.NET
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Dave Mcneely <mcneely4@COX.NET>
Subject:      Re: Oil Buzzer advice
Comments: To: vw_van_fan_Mark <madvws@COX.NET>
In-Reply-To:  <PxVj1r01J08X5Fr01xVpjU>
Content-Type: text/plain; charset=utf-8

---- vw_van_fan_Mark <madvws@COX.NET> wrote:
> How is that the simplest answer? I prefer a correct answer in any case.
>
> Far more commonly with 86+ vans the cause is something other than actual
> low pressure due to engine wear.
>
> The best answer is to determine what the actual cause is. Analyzing the
> particulars is the place to start. Since the problem abruptly started
> after dash work the problem is more likely in the dash area rather than
> inside the engine. Also when the cause is inside the engine it tends to
> show first on a hot engine and after a long drive. The OP described it
> has happening immediately on driving it after the dash area work, before
> the engine had a chance to heat the oil very hot.

He also described the van as having a history of giving a low pressure warning on a hot engine after a long drive (up exiting the freeway), which he dismissed as "typical Vanagon," and seeming to him trivial.  Lots of Vanagons exhibit that symptom, but it is not trivial.  It usually means low oil pressure for some reason.  Oil temperature is a common cause, but this is a high mileage engine.  Of course, the correct cause needs to be determined, and electrical could be involved.  But with this vehicle's history, I would look to actual low pressure as a good possibility.
>
> Mark
>
> Dave Mcneely wrote:
> > High oil temperature.  Simplest answer for a 200K miles engine with a history of low oil pressure is bearing wear.
> >
> > ---- Dan N <dn92610@GMAIL.COM> wrote:
> >> oil buzzer ON for these possible reasons:
> >>
> >> - wrong oil grade
> >>
> >> - wrong type/brand of oil filter
> >>
> >> - bad/defective oil pressure sensors
> >>
> >> - bad/defective oil pressure sensor connections
> >>
> >> - too much oil in the engine (3/4 on the dipstick is best)
> >>
> >> - too little oil in the engine
> >>
> >> - worn crankshaft bearing(s) (errr.. engine rebuild on agenda)
> >>
> >> anything else guys?
> >
> > --
> > David McNeely
> >

--
David McNeely