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Search preserved mailing-list messages and current email and website contributions. Current posts are searchable before weekly archival. Recovery gaps remain possible. Words are matched together; try fewer terms if needed.

Page 5+: 60 results shown for Low pressure switch.

Source-balanced relevance: matches from both collections are interleaved, with source dates breaking ties. Restoration time is not the original posting date.

  • Re: OIL PRESSURE
    Historical mailing list - Larry Alofs
    Sat, 13 Jan 2001 12:05:14 -0600
    ...t trigger until the pressure gets a little lower. I bought both the gas and diesel sensors and switched to the diesel one after...
  • Re: Oil press. warning buzzer
    Historical mailing list - Budd Premack
    Thu, 16 Oct 1997 13:25:46 -0500
    ...The mechanic told me that the switch (sensor) was functioning fine, and that the oil pressure at cold starts was only marginally low. His...
  • Re: AC relay question
    Historical mailing list - Dennis Haynes
    Thu, 28 Jan 2010 01:25:49 -0500
    ...If you can't identify the high/low pressure switches and you don't know how to use gauges you may want to get...
  • Re: 91 Vanagon, oil pressure anomaly
    Historical mailing list
    Tue, 28 May 1996 13:34:21 -0400
    ...Normally it doesn't drop low enough to trip the pressure switch, but in your case it does. Why is this happening? Many have...
  • Re: oil light question
    Historical mailing list - Dennis Haynes
    Wed, 1 Jan 2014 11:29:22 -0500
    On insufficient pressure for the low pressure switch, the oil pressure warning light should blink. Over 2000 rpm if the higher pressure swith is...
  • Re: Radiator Aux Cooling Fan 84 vs. 90 - compressor on for Aux Fan to kick-on with 90 model??
    Historical mailing list - Jack Reynaert
    Wed, 2 Sep 2015 14:54:52 -0400
    ...Most of the > late vans use a single switch with multiple function often known as a trinary switch. > > Trinary switch functions > Low pressure (lost...
  • Re: [WetWesties] 2.1 dynamic oil pressure system
    Historical mailing list - Scott Daniel - Turbovans
    Sat, 14 Aug 2010 18:54:21 -0700
    ...a sensor/indicator problem, or actual low oil pressure . or you 'try things' ... thcker oil , new OP switches ec. scott turbovans ----- Original Message ----- From...
  • Re: 2.1L coolant light problem
    Historical mailing list - mark drillock
    Thu, 17 Jul 2003 10:24:40 -0700
    ...John makes a point though that the A/C switch turns on low speed fan while the high freon pressure switch turns on medium...
  • Re: Installed VDO/PSI Gauge = oil light on at idle?
    Historical mailing list
    Sat, 22 Mar 1997 08:41:01 PST
    ...You have two oil pressure sensing switches. Here is some extra info................. The low pressure switch (4.4) must open between 2.2 and...
  • Re: radiator fan speeds vs AC
    Historical mailing list - Richard A Jones
    Tue, 16 Jul 2013 16:40:53 -0600
    ...But it seems clear that if the high pressure switch closes, all it does is feed power to the 2nd stage relay and run...
  • Re: Radiator Aux Cooling Fan 84 vs. 90 - compressor on for Aux Fan to kick-on with 90 model??
    Historical mailing list - Dennis Haynes
    Sun, 23 Aug 2015 23:11:31 -0400
    ...Most of the late vans use a single switch with multiple function often known as a trinary switch. > > Trinary switch functions > Low pressure (lost...
  • Re: Oil pressure warnings, WAS: Mann Oil Filter and lifters
    Historical mailing list - Alistair Bell
    Sun, 2 Mar 2014 07:13:58 -0800
    ...The low pressure switch is activated at around 3 psi. On the >> Waterboxer the high pressure switch is ~12.6 psi. On the inline...
  • Re: AC Drip Drop
    Historical mailing list - John Bange
    Sun, 17 Jul 2005 21:52:46 -0700
    ...What the heck are you talking about? The high side fills until it reaches max pressure and the high pressure switch turns off the...
  • Re: Oil pressure light
    Historical mailing list - Larry Steffen
    Mon, 10 Nov 2014 09:04:40 -0800
    ...It is the pressure switch by the waterpump > pulley and oil pump cover. If that wire comes loose from the switch the > oil pressure...
  • Re: what causes low oil pressure
    Historical mailing list - Steve Cotsford
    Fri, 9 Jan 2004 14:25:26 -0500
    ...If you change the high oil pressure switch next to the water pump to the lower value or .8 bar I believe, instead of...
  • Re: why 2 oil switches (was: how engine oil degrades) oils)
    Historical mailing list - James Cohen
    Thu, 2 Jan 1997 19:53:05 -0800
    ...and then the low pressure switch will get a chance to warn you. And if there is a high pressure situation it is likely...
  • Re: Replacing pressure A/C Pressure switch w/o losing Freon
    Historical mailing list - Tom Hargrave
    Tue, 10 Aug 2010 19:20:28 -0500
    Usually that's a sign of low Freon. You may be leaking past the seal or maybe the switch has been doing its job...
  • Re: Help me please, oil pressure
    Historical mailing list - Charles Michaux
    Thu, 26 Jun 1997 17:49:58 -0000
    ...could i not be > getting correct oil pressure at the lower rpm, or do you think the > switch is bad (high one or low...
  • Re: Power Steering Pump Wiring Question?
    Historical mailing list - Ari Ollikainen
    Fri, 2 Oct 1998 10:34:04 -0700
    ...what appears to be a pressure switch with two white >wires attached using blade connectors mounted on the pressure >side of the power steering...
  • Re: a/c cutout switch
    Historical mailing list - GMBulley
    Thu, 16 Apr 1998 16:47:11 EDT
    ...bentley book shows a pipe with a high pressure and a low pressure cutout switches. I think I may have discovered why I had...
  • Source for low pressure oil switch
    Historical mailing list - Vince Jahn
    Fri, 15 Jul 2005 04:33:54 -0700
    ...Does anyone know where I can find this switch? Thanks VJ
  • Re: 1.9 oil light/preassure issue
    Historical mailing list - neil N
    Wed, 25 Feb 2009 19:06:10 -0800
    ...the pressure is lower than that. �The other is a 0.9 bar that triggers the buzzer if the pressure is too low above...
  • Re: Oil light and warning
    Historical mailing list - SDF ( aka ;jim lahey' - Scott )
    Fri, 20 Nov 2015 13:19:55 -1000
    ...the idea behind grounding the wire that goes to the high rpm oil pressure sensing switch is to eliminate that OP switch from the...
  • Re: New engine question revisited
    Historical mailing list - Bill Thomas
    Sun, 4 Jan 2004 23:02:30 -0500
    Mike, Before you give up on the engine due to low oil pressure at idle you may want to find an Amsoil dealer and...
  • Re: 2.1L WBX -oil pressure light flickers at idle
    Historical mailing list - John Rodgers
    Sat, 28 Feb 2015 16:25:57 -0600
    ...It might, or it might not, flicker at the next stop. >> >> I have never had a low oil pressure indication before. But the engine...
  • Re: dash oil pressure light
    Historical mailing list - Dennis Haynes
    Wed, 24 Apr 2002 22:39:33 -0400
    Make sure the low pressure oil switch closes when there is no oil pressure and that the wiring to it is good. If all...
  • Re: cheap gauges from JC Whitney
    Historical mailing list - Stan Wilder
    Mon, 21 Jun 2004 06:52:25 -0500
    ...Though, I might > > >put a toggle switch on it. Even without a toggle switch, I think that > > >the current draw is so low as...
  • Re: 87 Westy, A/C Question
    Historical mailing list - Keith Hughes
    Sun, 13 Jul 2014 10:44:49 -0700
    ...Sounds like your pressure switch, or wiring, may be bad, and your low speed fan isn't enough to keep engine temps down, and...
  • Re: Oil Light
    Historical mailing list - Jeff Lincoln
    Tue, 8 Aug 2006 12:09:35 -0400
    ...Intermittent while running could be a bad switch or shorted > wire. If you have low oil pressure, I would suspect the high pressure > warning...
  • Re: Oil pressure warnings, WAS: Mann Oil Filter and lifters
    Historical mailing list - mark drillock
    Sat, 1 Mar 2014 20:01:22 -0800
    I know of engines that suffered a rapid oil loss that resulted in the single switch detecting the lack of pressure and alerting the...
  • Re: oil pressure warning system anomaly?
    Historical mailing list - David Beierl
    Fri, 3 Dec 2010 14:33:53 -0500
    ...that I unhooked the 2 pin >connector but bridged the low pressure switch wire ends between the >two connectors so just it was still...
  • lots of a/c trouble shotting questions...
    Historical mailing list - shawn feller
    Tue, 6 Jun 2006 18:04:36 -0400
    ...pressure in the system (not saying the right amount) as the compressor is engaging and there is both a high and low pressure switch...
  • Re: Radiator Aux Cooling Fan 84 vs. 90 - compressor on for Aux Fan to kick-on with 90 model??
    Historical mailing list - Larry Alofs
    Wed, 2 Sep 2015 18:39:04 -0400
    ...Most of the > > late > vans use a single switch with multiple function often known as a trinary > switch. > > > > Trinary switch functions > > Low pressure (lost...
  • 91 A/C Switch Question
    Historical mailing list - Michael Sullivan
    Mon, 26 Jul 2010 16:18:49 -0500
    ...high pressure line. It has 4 wires and Bentley pg 87.6 shows two seperate switches...one for high and one for low. Mine...
  • Re: Oil pressure warnings, WAS: Mann Oil Filter and lifters
    Historical mailing list - Dennis Haynes
    Sun, 2 Mar 2014 10:53:11 -0500
    ...The low pressure switch is activated at around 3 psi. On the >> Waterboxer the high pressure switch is ~12.6 psi. On the inline...
  • Re: I guess if I'm putting on a tencentlife oil cooler . . .
    Historical mailing list - mark drillock
    Sun, 10 Apr 2011 08:34:59 -0700
    ...the oil light which blinks when pressure is sensed low. The logic board ignores the high pressure switch unless rpms are above 2000 or...
  • Re: Elemental Mods Report
    Historical mailing list - Mike Miller
    Mon, 5 May 2008 13:21:28 -0700
    ...an "overtemperature" switch but not a > "pressure" switch like the newer ones. With the older ones you can get > too low on refrigerant and...
  • Re: 2.1L WBX -oil pressure light flickers at idle
    Historical mailing list - Raymond Markett
    Sat, 28 Feb 2015 23:45:36 -0800
    ...It might, or it might not, flicker at the next stop. > > I have never had a low oil pressure indication before. But the engine...
  • Re: Oil pressure warnings, WAS: Mann Oil Filter and lifters
    Historical mailing list - Alistair Bell
    Sun, 2 Mar 2014 07:49:17 -0800
    ...The low pressure switch is activated at around 3 psi. On the >>> Waterboxer the high pressure switch is ~12.6 psi. On the inline...
  • Re: vanagon Digest - 30 Jul 2019 - Special issue (#2019-193)
    Historical mailing list - Keith Hughes
    Wed, 31 Jul 2019 17:08:01 +0000
    ...The pressure switch was installed in the high pressure hose on the compressor discharge line and appeared to be original (van was 7 yrs...
  • Aux fan function
    Historical mailing list - John
    Mon, 31 Jul 2000 14:31:49 -0400
    ...1) The A/C compressor cycling on/off controls and high side pressure. 2) The functional switching point of the 15 bar high side...
  • UPDATE Re: Oil Pressure System Confusion...
    Historical mailing list - Ryan
    Sun, 1 Jul 2007 15:33:17 -0400
    ...pressure switch satisfied or the ignition is reset. >> My >> bet is that as you come down to idle, the circuit is activating on low...
  • Re: A/C-No go?
    Historical mailing list - Mike Collum
    Sun, 10 Aug 2008 12:24:21 -0400
    ...On your '87, there is a pressure switch that won't allow the compressor clutch to engage if the charge is too low. That...
  • Re: issues with oi; alarm and temp light
    Historical mailing list - Mister Tom
    Fri, 13 Mar 2009 10:06:08 -0700
    ...I don't recall if it's like "Low pressure switch not on and RPM under 2500", or what. Tom Salicos '87 Syncro Westy...
  • Re: 86 Westy Syncro , Re: Dynamic oil pressure
    Historical mailing list
    Thu, 6 Jun 1996 23:35:12 -0400
    ...The high >and low pressure switches have been replaced along with the circuit board. At >about 3000 RPM the light flashes and the buzzer...
  • Re: Help me please, oil pressure
    Historical mailing list - Randy Newell
    Fri, 27 Jun 1997 10:25:29 -0500
    ...could i not be > getting correct oil pressure at the lower rpm, or do you think the > switch is bad (high one or low...
  • Re: OIL warning light up
    Historical mailing list - Allan Streib
    Tue, 22 Jul 2008 21:42:09 -0400
    ...the switch or something like that. The wires look > good. Could be the sensor. Could be that your oil pressure is low. You could...
  • Re: '91 Carat AC Inoperative.
    Historical mailing list - Jim Felder
    Thu, 27 Apr 2017 00:31:12 +0000
    ...I could > hear a whistling sound, an on checking, I discovered that the trinary > switch which is essentially the high/low pressure switch, had...
  • Re: the cat did it (solved)
    Historical mailing list - Lawrence Johnson
    Tue, 5 May 1998 09:14:43 -0400
    ...oil pressure switches indicate when oil pressure is too LOW. The buzzer sounded at >2000 rpm so I assume that the higher pressure sensor...
  • Re: oil pressure problems,still
    Historical mailing list - Roger Sisler
    Wed, 11 Oct 2006 19:43:08 -0400
    ...point I dont care too much about accurate oil pressure. Just need a switch of somekind.I have heard that when the oil light...
  • Re: Oil pressure warning
    Historical mailing list - Brian Cochran
    Sun, 11 Mar 2001 09:30:16 -0800
    ...If you have a transplanted 2.1L then >there are two oil pressure sensing switches sending to different >pressure signals to the Dynamic oil...
  • Re: Oil Pressure Buzzer? After Tach Wiring.
    Historical mailing list - John Bange
    Mon, 16 May 2005 11:05:23 -0700
    ...Since the .9 bar switch is an "open below .9, closed above" type, it sees your lack of a switch as a low pressure...
  • Re: AC Troubleshooting Question
    Historical mailing list - Larry Alofs
    Sat, 3 Aug 2002 11:26:51 -0500
    ...You do have enough refrigerant pressure to satisfy the low pressure switch, right? Larry A.
  • passed DE inspection
    Historical mailing list - Karl Ploessl
    Mon, 26 Apr 2004 11:46:14 -0400
    ...low: 1275 (500); high: 2469 (2200) (my mechanic did an oilchange/~filter, tune-up (new points, spark plugs and a new oil pressure switch...
  • Re: Oil pressure light and buzzer
    Historical mailing list - Steven Sittser
    Mon, 20 Aug 2012 15:27:16 -0400
    ...since that switch is closed when pressure is low, and open when pressure is good, the broken wire resulted in a constant "pressure is...
  • Re: New instrument cluster in '84 Vanagon
    Historical mailing list - DaveC
    Wed, 14 Dec 2005 16:41:40 -0800
    ...The dual oil switch >>circuit board never ignores the low pressure switch. It does ignore the >>high pressure switch when the engine is at...
  • Oil Pressure Warning Buzzer
    Historical mailing list - John Iseman
    Tue, 22 Aug 2000 10:53:03 EDT
    ...The problem went from intermittent, ie 2500 rpm and lower rpm, to a virtually constant buzzing. I then switched to 20W-50 and in...
  • Re: oil pressure problems, still
    Historical mailing list - Dennis Haynes
    Wed, 11 Oct 2006 19:11:19 -0400
    Just keep in mind that this adapter is placing the pressure switch before the filter, close to the pump outlet. The highest pressure point...
  • Re: Oil preasure light
    Historical mailing list - David Beierl
    Thu, 16 Aug 2012 16:56:51 -0400
    ...Once the engine is turning and oil pressure rises above ~4.5 psig (0.3 bar) the 0.3 bar sender switch opens. The...
  • Re: Oil pressure light and buzzer
    Historical mailing list - Scott Daniel - Turbovans
    Mon, 20 Aug 2012 12:37:52 -0700
    ...since that switch is > closed when pressure is low, and open when pressure is good, the > broken wire resulted in a constant "pressure is...