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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 3+: 60 results shown for High 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: Radiator thermo switch
    Historical mailing list - mark drillock
    Tue, 18 Sep 2012 12:47:30 -0700
    ...Medium is pretty loud, run only by A/C high pressure switch. High is real loud, run only by the rad high temp switch...
  • Re: Oil pressure switch problem
    Historical mailing list - Stan Wilder
    Tue, 9 Apr 2002 19:20:27 -0500
    ...buzzer goes on, the > problem > is related to the high "low oil pressure" switch (the one in front > of > the motor). Should I start...
  • Re: 1991 Carat - the drama continues
    Historical mailing list - Neil N
    Wed, 20 Jul 2016 20:04:38 -0700
    ...I had a nagging "high" pressure warning issue that AFAIK, was due to a corroded section of brown wire from switch to white connector...
  • Re: plan for oil pressure gauge install- opinions wtd
    Historical mailing list - Dennis Haynes
    Thu, 17 Mar 2005 19:43:35 -0500
    ...Perhaps use the old high pressure switch wiring to get the signal to the dash. Its a long story as to why I don...
  • Re: Oil Pressure light & buzzer, Yikes! Mystery # 1
    Historical mailing list - John Rodgers
    Sun, 11 Feb 2001 22:29:18 -0600
    Rob, The oil system high pressure switch is located at the bottom of the crankcase on the lower left side of the rear of...
  • 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: High Pressure Oil Switch Wire; Tethered to Switch. OEM? PIC
    Historical mailing list - neil n
    Fri, 11 May 2012 18:32:38 -0700
    ...Image is looking down toward muffler, mirror showing the oil high pressure switch spade connector. You can see a bit of the brown wire...
  • Re: Still doesn't add up, was: Re: [Syncro] Oil pressure mystery, resolved???
    Historical mailing list - David Beierl
    Tue, 1 Oct 2002 10:44:51 -0400
    ...The high pressure switch (near the oil pump) is .9 bar, or 13.1 >psi. This is all on page 17.7. If that...
  • A/C Advice Needed -- Kind of Long
    Historical mailing list - Keith Hughes
    Wed, 5 Jun 2002 10:06:42 -0700
    ...Switch on the A/C and IF the temperature is higher than the thermostatic setting: a. The A/C relay sends power to the...
  • New instrument cluster in '84 Vanagon
    Historical mailing list - John Lauterbach
    Wed, 14 Dec 2005 11:21:10 -0500
    ...that tach worked and supposedly low-pressure oil pressure switch worked and connection for nonexistent high pressure switch was grounded so the buzzer would...
  • Oil Pressure Switch
    Historical mailing list - Michael Sullivan
    Sun, 24 Aug 2008 14:25:53 -0500
    ...When I pulled the high pressure switch, I also removed the bushing to the block. I cleaned both and reinstalled bushing(old w/copper...
  • Re: Oil pressure light and buzzer
    Historical mailing list - Neil N
    Sun, 22 May 2016 20:23:58 -0700
    ...Is the high > pressure oil pressure switch, part number 068919081A, the culprit > here? I checked the archives and it appeared that there may have...
  • Re: An upgrade for a more efficent A/C system?
    Historical mailing list - Jeffrey Lubin
    Thu, 3 May 2007 15:45:07 -0400
    ...Infact the late Vanagon (86-91) has such a high pressure switch to close at >> > 210psi.When this happens,the fan runs on high...
  • Re: Oil Pressure Switch..
    Historical mailing list - Karl Bloss
    Thu, 8 Jun 2000 09:20:56 -0400
    ...The > first one is the high pressure switch, the second is the > low pressure switch. It's really difficult to access either > of these...
  • Re: Worst oil pressure ever? what about highest OK?
    Historical mailing list - Rob Infante
    Wed, 20 Jul 2005 12:31:19 EDT
    the PO put an oil pressure switch on mine. It starts out pretty high, as much as 60psi (is that too high?), but as...
  • Re: Converting to R134
    Historical mailing list - TJ Hannink
    Thu, 5 Jun 2003 12:02:16 -0700
    ...The '86+ vans A/C refrigerant high pressure switch will switch the radiator fan to a higher speed when the high side pressure goes...
  • Re: Cleaning contacts/Oil light buzzer
    Historical mailing list - Nathan Mc Blain
    Fri, 27 Apr 2007 13:33:26 -0700
    ...It's a good thing that VW made the high pressure switch this way. This makes me think it is my actions with the...
  • Re: "High" Pressure Oil Switch Electrical Questions. (Jetta conversion) PIC
    Historical mailing list - mdrillock
    Wed, 8 Oct 2008 19:06:49 -0700
    ...It only >> monitors the high pressure switch when the engine rpm is high enough for the >> switch to be valid. >> >> Mark >> >> >> >> >> neil N wrote...
  • Re: Need a/c hose for 87 Westy Gl
    Historical mailing list
    Sat, 11 Jul 1998 14:36:35 EDT
    ...I just figured any responsible auto manufacturer would put a high pressure switch on an AC system. Sure, in production runs as high as...
  • Re: High Pressure Oil Switch Wire; Tethered to Switch. OEM? PIC
    Historical mailing list - Scott Daniel - Turbovans
    Fri, 11 May 2012 19:03:40 -0700
    ...oil high > pressure switch spade connector. You can see a bit of the brown wire > and how it's tethered to the switch. > > Thanks...
  • Re: oil buzzer/light (was vdo...)
    Historical mailing list
    Tue, 25 Mar 1997 14:57:56 -0500 (EST)
    ...While the engine has two oil pressure switches, BOTH are to indicate when oil pressure is too LOW. There's a higher threshold on...
  • Re: An upgrade for a more efficent A/C system?
    Historical mailing list - Gerald Masar
    Thu, 3 May 2007 12:19:40 -0700
    ...Infact the late Vanagon (86-91) has such a high pressure switch to close at 210psi.When this happens,the fan runs on high...
  • Re: AC converted to 134
    Historical mailing list - Keith Ovregaard
    Tue, 19 Jul 2005 12:55:17 -0700
    ...Fan on High. The only thing the high > pressure (freon pressure) switch does is to kick the radiator fan up > the > the intermediate speed...
  • Re: Newer instrument cluster in '84 van
    Historical mailing list - David Beierl
    Sun, 18 May 2014 18:39:37 -0400
    ...It is the tach signal pin. >Without the tach signal the oil pressure board ignores the high rpm >pressure switch and only uses the...
  • Re: oil pressure warning system anomaly?
    Historical mailing list - mark drillock
    Fri, 3 Dec 2010 06:28:48 -0800
    ...Lots of people who have done an engine conversion permanently ground the high pressure switch wire so it acts like it always sees pressure...
  • Re: Ethnicity of Oil Pressure Switch
    Historical mailing list - G. Matthew Bulley
    Sat, 20 Apr 2002 15:41:12 -0400
    There's a common misconception that "more/higher" oil flow/pressure is good, and that very low oil pressure is a precursor to a...
  • Re: Oil Pressure System Confusion...
    Historical mailing list - Bob Donalds
    Sun, 1 Jul 2007 11:06:16 -0700
    ...Oil Pressure System Confusion... > Once the high pressure warning is activated, it remains on until the > system see the high pressure switch satisfied or...
  • Re: Oil pressure alarm problems problems--this is a good one for any one up for a challenge.
    Historical mailing list - Dennis Haynes
    Tue, 19 Sep 2006 21:02:05 +0000
    Sounds like the either the wires to the switches are reversed or you have the wrong switch in place. The high pressure switch is...
  • Re: Power Steering Pump - high pressure line
    Historical mailing list - Dennis Haynes
    Mon, 11 Sep 2006 00:07:40 -0400
    ...It's the high pressure line coming out of the top where the pressure switchc is located. or, Could someone send me the two...
  • Re: Where to buy 0.25 bar oil pressure sender?
    Historical mailing list - Mike D.
    Tue, 29 Jul 2003 19:17:20 -0700
    ...With the 0.3 bar switch disconnected, I didn't see the light flicker at high RPM at all. This confuses me because I...
  • WTB PS switch
    Historical mailing list - Jim Felder
    Tue, 27 Feb 2007 17:02:36 -0600
    The sensor/switch on my 90 Vanagon power steering high pressure side is leaking fluid out of the plastic potting around the contacts. Does...
  • Re: what causes low oil pressure
    Historical mailing list - Mike Collum
    Mon, 12 Jan 2004 11:25:01 -0500
    ...Both > > electrical and mechanical with oil pressure gauges. When replacing the > > switches, make sure to get the correct ones. The high pressure switch > > (rear...
  • Re: Oil light and warning
    Historical mailing list - Dennis Haynes
    Wed, 18 Nov 2015 23:54:24 -0500
    ...The one thing I still am not sure about, was the recomendation to remove the wire from the high pressure switch by the water...
  • Re: Oil Light flashing
    Historical mailing list - Rich Bennington
    Wed, 4 Oct 2006 13:47:37 -0700
    ...With no high pressure switch on the digijet models, the gauge is nice to have. Rich < This is critical to diagnose immediately. It is...
  • Re: Oil pressure alarm problems problems--this is a good one for any one up for a challenge.
    Historical mailing list - Dennis Haynes
    Tue, 19 Sep 2006 21:04:33 +0000
    ...The > light should have a steady blink with this switch closed. > > The high pressure switch is opposite. It is normally open and > closes when...
  • 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: Oil Light
    Historical mailing list - Dennis Haynes
    Tue, 8 Aug 2006 10:42:29 -0400
    ...When it is closed, the oil pressure warning light will flash. The higher pressure switch, (.9 bar), is located directly off the oil pump...
  • Re: Oil pressure switches
    Historical mailing list - Johan Nyberg
    Thu, 6 May 1999 14:29:39 +0100
    ...First, I think you are right in guessing that that high pressure switch was bad/ is replaced. That's the one on the back...
  • "High" Pressure Oil Switch Electrical Questions. (Jetta conversion) PIC
    Historical mailing list - neil N
    Wed, 8 Oct 2008 18:31:32 -0700
    ...I connected a warning buzzer to the Jetta "High pressure" oil switch. Simple diagram of what I did: http://tubaneil.googlepages.com/HIghPressureOil.jpg...
  • Re: "High" Pressure Oil Switch Electrical Questions. (Jetta conversion) PIC
    Historical mailing list - Neil2
    Thu, 9 Oct 2008 11:53:31 -0700
    ...It only > > monitors the high pressure switch when the engine rpm is high enough for > the > > switch to be valid. > > > > Mark > > > > > > > > > > neil N wrote...
  • Re: oil pressure light
    Historical mailing list - Scott Daniel - Turbovans
    Sun, 4 Apr 2010 16:53:22 -0700
    ...in the case of the high pressure switch by the crank pulley on a 2.1 ...that wire being off will make the oil...
  • Re: 86 vanagon Oil Pressure Switch
    Historical mailing list - clerkin
    Fri, 13 Jul 2001 22:58:00 -0500
    ...What I did was ground the high pressure switch wire to keep >the DOPS happy. I installed a gauge to see real pressure and...
  • Re: D.I.Y. R-134 Kit AC Recharge advice
    Historical mailing list - David Del Ben
    Mon, 4 Sep 2000 10:07:40 +1100
    ...I went with an 80% charge but the hi-pressure switch runs the fan on high a lot. The EPA web site on conversion...
  • Re: vanagon Digest - 30 Jul 2019 - Special issue (#2019-193)
    Historical mailing list - Keith Hughes
    Wed, 31 Jul 2019 17:08:01 +0000
    ...My late August '86 has/had the same dealer installed system, yet had the high pressure switch installed. The switch kicked in the HIGH...
  • Re: 86 vanagon Oil Pressure Switch
    Historical mailing list - Karl Wolz
    Fri, 13 Jul 2001 22:37:09 -0700
    ...What I did was ground the high pressure switch wire to keep > >the DOPS happy. I installed a gauge to see real pressure and...
  • Re: weird para-normal
    Historical mailing list - Mike Miller
    Tue, 25 May 2004 08:59:15 -0700
    ...info on it. > > well the switch fails above 3000k rpms so this would be my high pressure > switch. > this idiot light like to go...
  • Re: '91 Carat AC - again!
    Historical mailing list - vw_van_fan_Mark
    Thu, 29 Sep 2016 12:48:48 -0700
    ...high pressure service port there is a port for a shraeder > valve. Scriwed onto that port is an electrical deviced called a "trinary > switch...
  • Re: Purpose of the ports on this AC hose?
    Historical mailing list - Dennis Haynes
    Tue, 24 Jul 2012 21:34:34 -0400
    ...this is the high pressure line, which would have the high > pressure connector (for external guages) and high pressure switch. > > And all this is...
  • Re: what causes low oil pressure
    Historical mailing list - Ben S
    Thu, 8 Jan 2004 21:25:57 -0800
    ...it seems to me that the oil pump is spinning faster at high engine speed and could more easily maintain output pressure at a...
  • Re: AC converted to 134
    Historical mailing list - Keith Hughes
    Tue, 19 Jul 2005 09:51:07 -0700
    ...Fan on High. The only thing the high pressure (freon pressure) switch does is to kick the radiator fan up the the intermediate speed...
  • Re: Blinking oil pressure light
    Historical mailing list - Larry Alofs
    Mon, 7 Dec 2020 22:20:13 -0500
    ...With no pressure the low pressure sensor is a closed circuit; the high pressure switch is an open circuit. In my Bentley, there are...
  • Oil Pressure Switch Leak test
    Historical mailing list - Michael Sullivan
    Sun, 24 Aug 2008 08:29:50 -0500
    Replaced the high pressure switch and want to test for leaks before putting my new belts back on. I have a couple of ?s...
  • Oil pressure light and buzzer.
    Historical mailing list - John Rodgers
    Fri, 18 Dec 2015 07:34:59 -0600
    ...I changed the high pressure switch, and haven't -so far at least - any repeats of the problem. Description of the procedure follows because...
  • Re: oil pressure light
    Historical mailing list
    Tue, 8 Oct 1996 22:53:09 -0400
    ...highway run. I repalced this swith with a 1.6 bar switch and the problem went away. I did check the oil pressure with...
  • Re: Euro-Elec: 91 Volkswagen Vanagon, idiot lights, oil light
    Historical mailing list - Gary McEachern
    Sat, 15 Jan 2000 23:49:59 EST
    ...The switch closes (low resistance, <10 ohms) when the pressure is above 0.9 bar. This "high pressure" switch is used by the Oil...
  • Re: Euro-Elec: 91 Volkswagen Vanagon, idiot lights, oil light
    Historical mailing list - Gary McEachern
    Sat, 15 Jan 2000 23:45:56 EST
    ...The switch closes (low resistance, <10 ohms) when the pressure is above 0.9 bar. This "high pressure" switch is used by the Oil...
  • Re: '84 Vanagon 1.9 engine oil pressure switch etc. Now have voltage data on wire from oil pressure switch to instrument panel
    Historical mailing list - David Beierl
    Sun, 28 May 2017 11:21:09 -0400
    IIRC the high-pressure sender on the 2.1l has a blue body, whereas the low-pressure one (the only one on 1.9l...
  • Re: Still doesn't add up, was: Re: [Syncro] Oil pressure mystery, resolved???
    Historical mailing list - Jay L Snyder
    Tue, 1 Oct 2002 13:48:52 -0400
    ...Grounded the wire to the higher pressure switch. This makes the Dynamic Oil Pressure Gremlin happy. Red light for low pressure switch (works just...
  • AC High Pressure Switch
    Historical mailing list - Jim & Melody
    Thu, 8 Apr 1999 21:14:11 -0600
    ...Trouble is, my Vanagon is an Adventurewagon camper conversion and the mechanic can't find the high pressure switch. I'm 230 miles away...
  • 91 A/C Switch Question
    Historical mailing list - Michael Sullivan
    Mon, 26 Jul 2010 16:18:49 -0500
    Thanks in advance, but trying to find a part # for the hi/lo switch on the a/c high pressure line. It has 4...