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Page 3+: 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 Switch..
Historical mailing list - kenneth d lewis
Thu, 8 Jun 2000 06:32:19 EDT
Yosh; You have two oil pressure sensing switches. The low pressure switch (4.4) must open between 2.2 and 6.5 psi. It...
Re: Cleaning contacts/Oil light buzzer
Historical mailing list - Mark Drillock
Fri, 27 Apr 2007 09:24:02 -0700
...The low rpm oil pressure switch works the old fashioned way, disconnected = no oil light. Mark Nathan Mc Blain wrote: > After the coments recently...
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...
Re: oil light question
Historical mailing list - David Beierl
Wed, 1 Jan 2014 11:42:32 -0500
...If it is a pressure switch (seems quite likely) it will be the low-pressure one on the side of the engine which fails...
Re: what causes low oil pressure
Historical mailing list - Dennis Haynes
Fri, 9 Jan 2004 06:38:01 -0500
...lower end can double that. You need to do some troubleshooting. Both electrical and mechanical with oil pressure gauges. When replacing the switches, make...
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: Where to buy 0.25 bar oil pressure sender?
Historical mailing list - Mike D.
Tue, 29 Jul 2003 19:17:20 -0700
...I'm hoping that the 0.25 bar switch would fix the low idle idiot light problem. The engine has 145k on it so...
Re: Radiator Aux Cooling Fan 84 vs. 90
Historical mailing list - Dennis Haynes
Sat, 22 Aug 2015 20:09:38 -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: weird para-normal
Historical mailing list - Mike Miller
Tue, 25 May 2004 08:59:15 -0700
...so this would be my high pressure > switch. > this idiot light like to go crazy. it first started at low idle then changed! > > Joe > >
Oil pressure warning
Historical mailing list - John
Sat, 10 Mar 2001 23:23:56 -0500
...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: Radiator Aux Cooling Fan 84 vs. 90
Historical mailing list - Jim Felder
Sat, 22 Aug 2015 22:06:36 +0000
...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 Light Flickering
Historical mailing list
Thu, 20 Feb 2014 20:32:43 +0000
...Be sure to get the correct switch. Extended highway speeds will cause the oil to heat up and thin out causing lower oil pressure...
Re: Radiator fan
Historical mailing list - vw_van_fan_Mark
Sun, 6 Sep 2020 08:53:46 -0700
...a relay connects to the low speed circuit with the fan resistor. At high head pressure the pressure switch operates a relay in the...
Help me please, oil pressure
Historical mailing list - Ourston and Doctors (by way of Ron Lussier )
Thu, 26 Jun 1997 14:38:10 -0700
...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 pressure light
Historical mailing list - mark drillock
Mon, 10 Nov 2014 07:31:52 -0800
...1986 and newer vans have 2 oil pressure switches. Only 1 of the switches can trigger the buzzer. It is the pressure switch by...
Re: Oil Pressure Safety Switch???????
Historical mailing list - Beckham, Chip
Fri, 15 Feb 2002 16:31:23 -0500
...with any kind of "safety" switch that won't allow the engine to start with low oil pressure? I have an "85 GL that...
Re: Air conditioning electrical questions
Historical mailing list - Rob Scott
Sat, 3 Aug 2002 22:51:09 -0700
...Shortly after I started adding the second can of ES-12 I heard a soft "click" from the low pressure switch inside the cabinet...
'85 GL A/C QUESTIONS
Historical mailing list - Robert A. Alexander
Mon, 20 Jul 1998 10:58:02 -0400
...the high-pressure line on the compressor is the one the hi/lo pressure switch is attached to and the low-pressure line is...
Re: Ethnicity of Oil Pressure Switch
Historical mailing list - Dennis Haynes
Sat, 20 Apr 2002 15:00:11 -0400
...Ethnicity of Oil Pressure Switch Hi, The minimum oil pressure at 2000 rmp (By Bentley spec, is Bentley right!!!) is 2 BAR (29PSI). Why...
Re: the cat did it (solved)
Historical mailing list - SyncroHead
Tue, 5 May 1998 03:29:34 EDT
...oil pressure switches indicate when oil pressure is too LOW. One is used at low engine speeds and has a lower oil pressure setting...
Re: '86 Westy Oil light flickers briefly...other basic ?'s
Historical mailing list - jimt
Sat, 9 Oct 2004 11:20:51 -0600
...Note that the upper oil pressure switch (extremely common dating back to bugs) is not the same as the lower. They are even different...
Re: AC Question
Historical mailing list
Fri, 28 Mar 1997 21:55:21 PST
...Again referencing the Bentley manual; there are NO pressure switches on the 84,85 model. Looking on page 97.140 for 1986-88 there...
Re: 2.1L WBX -oil pressure light flickers at idle
Historical mailing list - Jim Felder
Sat, 28 Feb 2015 13:46:41 -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: Oil Light flashing
Historical mailing list - Rich Bennington
Wed, 4 Oct 2006 13:47:37 -0700
...They typically go off at low idle after running hot for a bit. The oil is thinnest, the pressure lowest, and the switch goes...
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: what causes low oil pressure
Historical mailing list - Jeff
Sat, 10 Jan 2004 19:17:32 -0700
...switch to synthetic, Mobil 1 15W50 is supposed to be "the best". As far as I've been able to determine, low oil pressure...
Re: oil pressure warning system anomaly?
Historical mailing list - Dennis Haynes
Fri, 3 Dec 2010 09:41:43 -0500
...After unplugging the 2 pin connector to the oil switches, I used an ohm meter to determine that the low rpm switch was grounded...
Re(2): why 2 oil switches (was: how engine oil degrades) oil
Historical mailing list
Tue, 7 Jan 1997 10:09:44 -0500
Jim, Thanks for the excellent explanation of the high and low oil pressure switches and how they function. I have been wondering about this...
Re: Oil Buzzer advice
Historical mailing list - vw_van_fan_Mark
Thu, 1 Oct 2015 20:23:07 -0700
That VDO gauge setup has both a pressure switch and a pressure sensor built into it. The switch part doesn't match what the...
Re: VDO Oil Sender Setup
Historical mailing list - Scott Daniel - Turbovans
Wed, 16 May 2012 14:13:38 -0700
...low oil pressure switch port between > pushrod tubes. A T-connector provides connections to the dual-pole sender > and the factory .3 bar switch...
Re: '86 Westy A/C Problem
Historical mailing list - Deke Rivers
Tue, 13 Jan 2009 18:11:27 -0600
...You likely do not have either a high pressure or low pressure cutoff switch either. And you won't have anything in the "D...
Re: Oil Pressure System Confusion...
Historical mailing list - Bob Donalds
Sun, 1 Jul 2007 11:06:16 -0700
...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: 1.9 oil light/preassure issue
Historical mailing list - Allan Streib
Wed, 25 Feb 2009 16:08:48 -0500
...The other is a 0.9 bar that triggers the buzzer if the pressure is too low above 2000 RPM. I think the 1...
Re: 87 vanagon oil light when cold
Historical mailing list
Tue, 6 Aug 1996 18:32:25 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
...on or the radiator lower temp switch closes. Medium speed is triggered only by the A/C high pressure switch. High speed is only...
Re: Cold start oil pressure
Historical mailing list - OlRivrRat
Thu, 13 May 2021 00:08:34 -0600
...COM> wrote: > > and switching to synthetic could result in a lower reading, Should have No Bearing on Cold Oil Pressure Readings ~ But Depending on...
Re: Oil Light Question
Historical mailing list - James Benthall
Thu, 24 Mar 2005 08:51:33 EST
Jere, Could be you just need to replace your switch. My oil pressure light kept coming on (along w/ a very loud audible alarm...
Re: 1.9 oil light/preassure issue
Historical mailing list - neil N
Wed, 25 Feb 2009 13:37:32 -0800
...My Westys Jetta 2.0 engine has the same oil pressure switch(s) system. AFAIK, all 2.1 WBX engines have 2 oil pressure...
Re: AC pressure problem solved!
Historical mailing list - Gary McEachern
Sat, 11 Sep 1999 15:07:26 EDT
...Conditioner's low and high pressure lines? > >My high pressure side is presently running around 225 and the high pressure >switch, that drives the...
Re: oil pressure problems,still
Historical mailing list - Kenneth Lewis
Tue, 10 Oct 2006 17:23:00 -0400
Roger, The low pressure oil switch is supposed to be normally closed i.e. no pressure. That is what tests the oil light with...
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: Bypassing low preasure switch
Historical mailing list - Ken Wilford
Mon, 11 Aug 2008 07:47:16 -0400
...low pressure > switch to get the compressor to run so I can recharge the system. > > What or how do I bypass this switch? > > Thanks...
Re: 86 vanagon Oil Pressure Switch
Historical mailing list - clerkin
Thu, 12 Jul 2001 21:36:38 -0500
...What happens is that the high pressure switch no longer grounds at low rpm's when it is warmed up because of the lower...
Re: Not cold in Maine (AC that is)
Historical mailing list - Mike Collum
Sun, 19 Jun 2005 10:58:45 -0400
Remember, the '85 has no low pressure cut out switch. With the AC turned on ... the compressor's clutch engages and the whole works...
Re: fan switch or sensor, a busdepot question
Historical mailing list - gary hradek
Wed, 1 Oct 2003 08:06:03 -0700
Mark, about the switch, I ordered both from busdepot. I was worried about the low temp switch running all the time. If you still...
Re: Radiator Fan Issues
Historical mailing list - mark drillock
Mon, 13 Jun 2005 21:28:30 -0700
...There is no low side A/C pressure relay but rather just a simple low side pressure switch that disables the A/C compressor...
Re: Help with A/C High/Low pressure sensor requested
Historical mailing list - Kim Brennan
Thu, 17 Jul 2003 00:59:11 -0400
...This would mimic the > low-pressure sensor switch. When the pressure is too low, it starts > the pump up with the correct ambient temperature...
Re: of oil lights and pressure switches
Historical mailing list - Charles McGehee
Wed, 26 Sep 2001 07:58:53 -0700
...Check to make sure the switch is >normally closed (continutity through switch with no pressure) and opens up >with pressure. Does it light up...
Re: Oil Pressure Buzzer? After Tach Wiring.
Historical mailing list - Michael Knight
Mon, 16 May 2005 14:14:12 -0500
...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: 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
...The high pressure switch is located near the oil or water pump. The low pressure switch is between the push rod tubes, (center cam...
Re: Radiator Aux Cooling Fan 84 vs. 90 - compressor on for Aux Fan to kick-on with 90 model??
Historical mailing list - Jack Reynaert
Sun, 23 Aug 2015 10:59:39 -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 Light
Historical mailing list - Dennis Haynes
Tue, 8 Aug 2006 13:25:08 -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: 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: Oil Light
Historical mailing list - Dennis Haynes
Tue, 8 Aug 2006 10:42:29 -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 Light
Historical mailing list - Dennis Haynes
Wed, 26 Dec 2001 14:25:41 -0500
If the switch is working properly, it is either on or off. Blinking is possible if the pressure is close to the switch point...
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...
AC pressure question
Historical mailing list - Gary McEachern
Sat, 11 Sep 1999 08:48:09 EDT
...Conditioner's low and high pressure lines? My high pressure side is presently running around 225 and the high pressure switch, that drives the...
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: what causes low oil pressure
Historical mailing list - Mike Collum
Mon, 12 Jan 2004 11:25:01 -0500
...lower end can double that. You need to do some troubleshooting. Both > > electrical and mechanical with oil pressure gauges. When replacing the > > switches, make...
Re: Brake light sensor switch adj.
Historical mailing list - Mark Drillock
Tue, 10 Apr 2007 17:25:42 -0700
...The earlier type incorporates a brake pressure failure warning circuit and that is why the 3rd wire is needed. The switch design change for...