Wierd oil problem

[amalventano at sc.rr.com (Allyn)]

if the light only comes on at 2000 rpm or greater, you are tripping the
dynamic oil pressure switch. there are 2 pressure switches. one covers the
full range (and is set to a very low pressure), and another checks a higher
pressure, but the actual ssytem doesnt hit this pressure until it nears 2000
rpm, so there is a PCB (what dan was talking about) that senses rpm and
doesnt turn on the buzzer until you go past 2000. there is also a time
dealy, which i think is 2 or 5 seconds, before the buzzer actually starts
buzzing.
if you hit the buzzer 2 or 5 seconds after going past 2000 rpm, and it
happens every time, the wire may have come off of the dynamic pressure
sensor (its on the oil filter flange).
note: you can check this without the car moving (just rev to 2500 rpm and
see if it starts buzzing).
Al

----- Original Message ----- 
From: "Mike Smith" <smithma7@yahoo.com>
To: "John Lagnese" <jlagnese@massed.net>
Cc: "car" <scirocco-l@scirocco.org>
Sent: Wednesday, July 16, 2003 10:33 AM
Subject: Re: Wierd oil problem


> When I first start it, no light.  Once I start moving, it comes on about
30 seconds into the drive and stays on until I turn engine off.  At times
when I stall (CIS shizz) in traffic, I restart and have same results.
Nothing until I start moving and then 30 seconds into it: blink blink blink.
It shouldn't be low on oil.  As I don't wish to rebuild it again, I've been
fairly religious in checking and changing the oil.  And as I drive 500
miles/week for work, I've been changing it about once a month.  In fact,
just ordered 20 drain plug washers a couple of weeks ago.  Can't remember
the last time I changed the old washer, but it was getting bent out of
shape.
>
> Mike
>
> John Lagnese <jlagnese@massed.net> wrote:
> The sensors are cheaper to check. Does the light stay on at all rpms?
> ----- Original Message -----
> From: "Mike Smith"
> To: "ATS - Patrick Bureau"
> Cc: "car"
> Sent: Wednesday, July 16, 2003 9:59 AM
> Subject: RE: Wierd oil problem
>
>
> > Well, after reading this, let me throw this out there: My oil light
> blinks constantly. It's supposed to blink when oil is low, right? (I don't
> really know :) I always figured I had a bad sensor somewhere and the car
> just thought it was always low on oil. Now, you're saying that it probably
> means a bad oil pump? I'm pretty sure this is an item that was replaced
> when my engine was rebuilt as they had issues with finding metal in the
oil.
> >
> > Lost, Mike
> >
> > ATS - Patrick Bureau wrote:
> > Last time I had an intermitent oil light issue I was running 10w40 and
> > someone suggested I used 20w50, and when I switched the oil light stayed
> one
> > permanently, so I changed my oil pump. solved the problem...then again
it
> > had over 150K miles on it.
> >
> > maybe it's time to simply change the oil pump.?
> >
> > ATS - Patrick Bureau - txrocco@sbcglobal.net
> > ----------------------------------------------
> > MSN:ATSGTX@hotmail.com |YAHOO:ATSGTX@yahoo.com
> > ICQ:32918816 |AIM:Texasscirocco
> > ----------------------------------------------
> >
> >
> > =>-----Original Message-----
> > =>From: scirocco-l-bounces@scirocco.org
> > =>[mailto:scirocco-l-bounces@scirocco.org]On Behalf Of L F
> > =>Sent: Tuesday, July 15, 2003 6:51 PM
> > =>To: Cmr446@cs.com; scirocco-l@scirocco.org
> > =>Subject: Re: Wierd oil problem
> > =>
> > =>
> > =>Try going with 20w-50 full syn.
> > =>
> > =>I've read that >30 points difference between the first number and
> > =>the second is NOT a good idea.
> > =>
> > =>Larry
> > => ----- Original Message -----
> > => From: Cmr446@cs.com
> > => To: scirocco-l@scirocco.org
> > => Sent: Tuesday, July 15, 2003 1:28 AM
> > => Subject: Re: Wierd oil problem
> > =>
> > =>
> > => txrocco@sbcglobal.net writes:
> > => >
> > => > you using 20w50 ?
> > => >
> > =>
> > => Nope, 5w50 full synth.
> > =>
> > => robw_z@yahoo.com writes:
> > => > What is tipping you off to that it isn't picking up oil?
> > =>When the engine
> > => > turns, assuming all is well with the intermediate shaft and
> > =>gears, the oil
> > => > pump has no choice but to turn also. It could be a screwed
> > =>up pressure-relief
> > => > valve but that would be odd since your pump is new.
> > => >
> > => > -Rob
> > =>
> > => Ah, forgot to mention that the oil light stays on after the
> > =>engine is
> > => running, hydro lifters clattering. It does this only after the
> > =>car has sat for at
> > => least 12 hours. Just about anything less and the light goes
> > =>out as soon as
> > => the motor kicks in, everything sounds normal.
> > => About the only thing I can think of off hand is maybe the
> > =>backflow or
> > => check valve in the filter is weak, allowing the oil to seep
> > =>back into the pan.
> > =>
> > => Carl
> > => 77rocco
> > => 03vue
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> > word (w?rd)
> > interj. Slang. Used to express approval or an affirmative response to
> something. Sometimes used with up. Source
> >
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> car
>
> word (w?rd)
> interj. Slang. Used to express approval or an affirmative response to
something. Sometimes used with up. Source
>
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