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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 2+: 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.

86+ cluster oil warning system
Historical mailing list - mark drillock
Mon, 9 Jan 2006 16:21:09 -0800
...The low switch is the normal kind, grounded when there is no pressure, open when pressure rises. The high switch is open when there...
Re: Oil Pressure Switch..
Historical mailing list - Peter Cassidy
Thu, 8 Jun 2000 10:26:27 +0100
...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: oil pressure switches
Historical mailing list - Karl M.
Sat, 2 Jun 2001 23:43:43 -0400
The sensor between the pushrod tubes is the low-pressure one. Sounds like it is working correctly. The high pressure switch is located below...
Re: Radiator Fan Issues
Historical mailing list - mark drillock
Mon, 13 Jun 2005 21:28:30 -0700
...The refrigerant high pressure switch does control the middle speed radiator fan relay but it does not turn off the A/C clutch when...
Re: plan for oil pressure gauge install- opinions wtd
Historical mailing list - Bob Stevens
Thu, 17 Mar 2005 06:00:29 -0700
...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 problem
Historical mailing list - Robert Donalds
Thu, 5 Sep 2002 08:14:29 -0400
...The dealer and most parts store list a higher pressure switch. you could still have issues with oil pressure if the engine is over...
update on a/c fuse blowing
Historical mailing list - David Clarkson
Tue, 15 May 2007 13:15:41 -0400
...We also found that once the pressure switch was replaced (used, working switch) that the high side pressure was approaching 350 psi before all...
Re: Need a/c hose for 87 Westy Gl
Historical mailing list - PAT
Sat, 11 Jul 1998 14:11:03 -0400
Wow, I guess I stand corrected on the pressure switch deal. I just figured any responsible auto manufacturer would put a high pressure switch...
Re: what causes low oil pressure
Historical mailing list - Dennis Haynes
Fri, 9 Jan 2004 06:38:01 -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 pressure switch problem
Historical mailing list - Karl Wolz
Tue, 9 Apr 2002 23:35:22 -0700
...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: Oil pressure light and buzzer
Historical mailing list - Neil N
Sun, 8 Nov 2015 16:47:21 -0800
...The higher pressure switch logic is reversed as a fail safe. The > switch closes when pressure is sufficient. As such a broken or disconnected...
Re: Oil pressure switch
Historical mailing list - Dennis Haynes
Fri, 29 Jun 2001 06:29:51 -0400
The 1.8 bar switch is too high for the Vanagon. It will cause nuisance sounding of the buzzer above 2500 rpm. Dennis -----Original...
Possible FAQ? (warning: kinda long)
Historical mailing list
Tue, 19 Aug 97 12:06:12 -0700
...As already noted, replacing the low pressure switch is a "piece of cake". The high pressure switch is another story. You pretty much have...
AC pressure question
Historical mailing list - Gary McEachern
Sat, 11 Sep 1999 08:48:09 EDT
...s low and high pressure lines? My high pressure side is presently running around 225 and the high pressure switch, that drives the stage...
Re: Where is the oil pressure sender on VW Rialta?
Historical mailing list - Hawk
Sun, 27 May 2012 12:04:28 -0500
...On VW's using two oil pressure switches, the high pressure switch kicks in when engine revved past 2K RPM. That said, on a...
Re: AC converted to 134
Historical mailing list - Keith Hughes
Tue, 19 Jul 2005 15:32:24 -0700
...The post '86 systems, although they have a high pressure switch, are not *legal* to convert either, in that the high pressure switch must...
Oil pressure switch confusion, '86 Caravelle
Historical mailing list - Johan Nyberg
Sat, 27 Jun 1998 18:32:09 +0100
Hi all! Today I checked the colour of the "high" oil pressure switch. It looks white to me, and that indicates a 1.8...
Power Steering Pump - high pressure line
Historical mailing list - John Rodgers
Sat, 9 Sep 2006 16:14:43 -0500
...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: 89 Wolfs/Newbie ??
Historical mailing list
Sun, 30 Nov 1997 20:43:34 -0500
...The dynamic oil pressure monitoring system gets inputs from two pressure switches. One switch is closed with no oil pressure and opens when oil...
Re: AC conversion quirks
Historical mailing list - Tom Miller
Thu, 1 Jul 2004 16:10:04 -0400
Sounds like the r134a is operating near the AC high pressure switch trip points and is triggering the fan to go on high speed...
Re: D.I.Y. R-134 Kit AC Recharge advice
Historical mailing list - David Del Ben
Mon, 4 Sep 2000 13:40:26 +1100
...Hope it's not an SD 509 (R12!!) Not quite sure, but I think those compressors came with a High Pressure switch on the...
Re: Ethnicity of Oil Pressure Switch
Historical mailing list - Dennis Haynes
Fri, 19 Apr 2002 23:10:04 -0400
...The 1.8 Bar switch is only for the I4's that run at higher oil pressures. It will give nuisance warnings on the...
Re: a/c cutout switch
Historical mailing list - SyncroHead
Fri, 17 Apr 1998 14:22:15 EDT
...a temp > attainable only at very high pressure. There are both high and low pressure switches located under the driver's side A/C...
Re: AC pressure problem solved!
Historical mailing list - Gary McEachern
Sat, 11 Sep 1999 15:07:26 EDT
...The high side pressure switch just turns the AC Compressor off if the high side pressures get too high (Over 300) I believe. It...
Re: Oil pressure switch
Historical mailing list - Karl Wolz
Fri, 29 Jun 2001 12:53:00 -0700
...It was all there except the high pressure switch. I wandered over to my FLIAPS (I = Import) and asked for a high side switch...
Re: "High" Pressure Oil Switch Electrical Questions. (Jetta conversion) PIC
Historical mailing list - neil N
Wed, 8 Oct 2008 18:49:51 -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: D.I.Y. R-134 Kit AC Recharge advice
Historical mailing list - jhlauterbach
Sun, 3 Sep 2000 21:53:55 -0400
On the earlier Vanagons, A/C was dealer installed and no high/low pressure safety switches were included. On my '84 I watch outlet...
Re: 86-91 oil pressure switch for sale
Historical mailing list - Dennis Haynes
Mon, 24 Dec 2007 17:29:03 -0500
Is this the high pressure or low pressure switch? The high pressure switch is not the same for Vanagons and Golfs. If it is...
Re: flashing LED
Historical mailing list - Scott Daniel - Turbovans
Wed, 9 Sep 2009 12:48:44 -0700
...The high rpm/high pressure switch uses oppostie logic of a 'normal' oil preussure switch. It provides ground when things are ok ( opposte of...
Re: OIL PRESSURE LIGHT
Historical mailing list - Neil N
Fri, 16 Oct 2015 09:36:54 -0700
While replacing the coolant pump on my '88, I decided to replace a length of wire and connector to the high pressure oil switch...
Re: AC pressure question
Historical mailing list - David Snyder
Sat, 11 Sep 1999 07:53:35 -0700
...The high side pressure switch just turns the AC Compressor off if the high side pressures get too high (Over 300) I believe. It...
Re: Purpose of the ports on this AC hose?
Historical mailing list - Kim Brennan
Tue, 24 Jul 2012 16:58:27 -0400
...on the lines going to the evaporator you have low pressure switch, high pressure switch and the high pressure connector (not all on the...
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: The buzzer goes, oil sensor wires fixed ...
Historical mailing list - Dennis Haynes
Sun, 18 Jan 2015 09:23:07 -0500
...The higher pressure switch is normally open, closing and completing the circuit when pressure is sufficient. If needing a higher pressure switch, go to...
oil pressure switch
Historical mailing list - Tonya Pope
Tue, 4 May 1999 15:50:36 -0500
...I just had the high oil pressure switch replaced at the dealer due to it leaking. It buzzed all the way home. I know...
Re: Oil Pressure System Confusion...
Historical mailing list - Dennis Haynes
Sun, 1 Jul 2007 09:47:27 -0400
Once the high pressure warning is activated, it remains on until the system see the high pressure switch satisfied or the ignition is reset...
Re: anyone ever bypassed the 2.1L high oil pressure sender???
Historical mailing list - Steve Cotsford
Wed, 14 May 2003 07:41:57 EDT
...On investigation , I found it was the wire to the high pressure oil switch. I reconnected it to the switch and of course the...
On The Road Again w/Oil Pressure Light Working
Historical mailing list - John Rodgers
Tue, 8 Feb 2000 08:01:20 -0600
...The high pressure switch is normally open, therefore there is no power to the light or the buzzer. If a high pressure condition comes...
Re: Oil pressure switch problem
Historical mailing list - Larry Alofs
Sun, 14 Apr 2002 09:31:17 -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: D.I.Y. R-134 Kit AC Recharge advice
Historical mailing list - Tom Smith
Thu, 31 Aug 2000 22:09:52 EDT
...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: Need a/c hose for 87 Westy Gl
Historical mailing list - Darrell Boehler
Sat, 11 Jul 1998 12:51:52 -0500
...He and I have sense added switches to my westy, thanks to Bill Dummitt. You can sense the high pressure building up, the compressor...
VDO Oil Sender Setup
Historical mailing list - Chris S
Wed, 16 May 2012 10:03:40 -0400
...I opted to still use the .3 bar switch because the VDO sender switches at a higher pressure. -- Chris S. "Old Farts don't...
Re: Stranded: Oil Buzzer???
Historical mailing list - Malcolm Stebbins
Mon, 20 Jun 2005 16:30:22 -0700
...Once it was the rear switch that went > bad, and the next time the wire brok off the connector on the high > pressure switch...
Re: radiator fan speeds vs AC
Historical mailing list - Dennis Haynes
Tue, 16 Jul 2013 14:04:51 -0400
...fan runs at low speed, unless AC high pressure switch closes and then it runs at middle speed. This via the 2nd stage relay...
weird para-normal
Historical mailing list - Joseph Fortino
Tue, 25 May 2004 08:46:15 -0700
...well the switch fails above 3000k rpms so this would be my high pressure switch. this idiot light like to go crazy. it first...
Re: Oil pressure light
Historical mailing list - Frank Condelli
Tue, 11 Nov 2014 05:25:39 -0500
...to work off the existing vanago= > n pressure switches, > Either the high or low pressure switch Cheers, Frank Condelli Almonte, Ontario, Canada '87 VW...
Re: 87 Westy, A/C Question
Historical mailing list - Keith Hughes
Sun, 13 Jul 2014 10:44:49 -0700
...The A/C high pressure switch kicks on the second speed rad fan. It doesn't shut the compressor off though. If the rad...
Re: Wiring Challenge -- Bentley page 97.68 -- Wire H6 (Rad. Cool Fan Thermoswitch)
Historical mailing list - vw_van_fan_Mark
Tue, 30 Jul 2019 16:14:26 -0700
...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: what causes low oil pressure
Historical mailing list - Wesley Alden Pegden
Mon, 12 Jan 2004 10:12:31 -0600
...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 pressure checking
Historical mailing list - ROBERT DONALDS
Sat, 22 Jan 2005 09:15:29 -0500
...oil pressure at the head where the low pressure switch is located or do I have to check at the high pressure switch place...
Oil pressure gauge
Historical mailing list - Moritz, Thomas W NWW
Mon, 27 Aug 2001 16:02:29 -0700
...I made sure the buzzer was still operating by pulling apart the electrical connector where the pressure switch leads tie into the wiring harness...
Re: High Pressure Oil Switch Wire; Tethered to Switch. OEM? PIC
Historical mailing list - neil n
Fri, 11 May 2012 23:34:31 -0700
...Ignoring the fact that the wire obviously connects electrically to this high pressure switch, did the VW factory (Hanover or wherever) attach the wire...
Re: I guess if I'm putting on a tencentlife oil cooler . . .
Historical mailing list - mark drillock
Sun, 10 Apr 2011 08:56:12 -0700
The buzzer is only used for the high rpm pressure switch. The low pressure switch just triggers a blinking led. The high switch triggers...
Re: how engine oil degrades (was: sysnthetic oils)
Historical mailing list
Thu, 2 Jan 1997 19:06:31 PST
You have two oil pressure sensing switches. The low pressure switch (4.4) must open between 2.2 and 6.5 psi. It is...
Re: Question about AC and the 86 up three speed fan
Historical mailing list - mark drillock
Fri, 17 Sep 2004 13:42:13 -0700
...Medium speed is triggered only by the A/C high pressure switch. High speed is only triggered by the radiator temp switch and then...
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...
oil pressure switches
Historical mailing list - Edward Maglott
Sat, 2 Jun 2001 20:22:03 -0400
...According to Bentley, this is teh high pressure switch, supposed to close at 13 psi or so. Mine is closed with the engine off...
EV A/C?
Historical mailing list - Trace Choulat
Sat, 3 Jul 1999 18:27:17 -0400
Has anyone had the pressure/temp sensor/switch fail on their EV? It is located just in front of the high and low pressure...
Re: 2.1L Engine: Oil Pressure Senders faulty reading
Historical mailing list - Dennis Haynes
Sun, 12 Dec 2004 17:42:08 -0500
The high and low pressure sensors have different switch operation. Low is normally closed, opening with adequate pressure. High is normally open, closing with...
Re: OIL PRESSURE LIGHT
Historical mailing list - John Rodgers
Fri, 16 Oct 2015 13:35:01 -0500
...a length > of wire > and connector to the high pressure oil switch. > > The oil pressure switch looked original. > > Soon after, I had a similar...