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Page 16+: 60 results shown for Vacuum switch.

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

• Re: Cold Start Chug and Warm Stumbling
  Historical mailing list - Chuck Mathis
  Thu, 22 Feb 2001 17:09:32 EST
  Before you yank your Temp II check the adjustment on your throttle position switches (an '84 probably has two -- one for idle and one...
• Re: 2.1 Engine idles at 2600 rpm; 2nd computer doesn't fix
  Historical mailing list - John Rodgers
  Mon, 17 Apr 2006 16:33:44 -0500
  ...I went through this >>> too, and heres what I came up with: >>> >>> IDLE COMPUTER INPUTS: >>> Idle Switch >>> PS Switch >>> AC Switch >>> Hall Generator >>> Temp...
• Re: Boston Bob Engine, Low Compression and Low Vacuum - Good News
  Historical mailing list - Mike Finkbiner
  Wed, 20 Jun 2001 05:06:59 -0000
  ...The vacuum, which has been 6-8#, came up to 10# at idle, and the tiniest increase in rpm brings it up to 12...
• 1.9 Digifant with poor milage and low top-end power.
  Historical mailing list - Greg Potts
  Thu, 25 Feb 2010 16:32:06 -0500
  ...I also checked the throttle body switches and the idle switch engages perfectly. I am not able to detect a click at full throttle...
• Air Conditioning
  Historical mailing list - John Rodgers
  Sun, 26 Sep 2021 22:47:49 -0500
  ...Back when I had my '88 van, I dutifully switched my system over to R-134a because R12 was going out and what little...
• Idle Air Control Valve
  Historical mailing list - Dan N
  Fri, 10 Mar 2017 08:12:52 -0800
  ...and adjust the TPS (throttle body switch) - replace the temp2 sensor - replace oxygen sensor - replace all vacuum lines - new air filter - clean AFM - new...
• Re: 1.9 to 2.1 conversion question
  Historical mailing list - Jim Arnott
  Mon, 6 Apr 2009 13:41:02 -0700
  ...The 2.1 air box won't fit the > 1.9 OEM mounting because of the idle booster switch(s) (if you have air...
• Re: Installing Dash Volt-Meter?
  Historical mailing list - Max Wellhouse
  Thu, 2 Feb 2006 21:16:05 -0600
  ...I have vacuum, pressure and temmp. Additionally, I wired extra sensors and a couple switches so my temp gauge will show me either water...
• throttle body fun
  Historical mailing list - Alistair Bell
  Sun, 9 May 2010 12:07:10 -0700
  ...It sure keeps the actual switch nice and clean, see photos. The bore and butterfly had wear in them, as expected. The design of...
• Re: master brake light misbehaving
  Historical mailing list - Scott Daniel - Turbovans
  Sun, 18 Jul 2010 21:10:20 -0700
  ...cruise control ? cruise control is involved with brake and clutch switches or vacuum valves.. if there is cruise control I'd explore that avenue...
• Re: Oil pressure -- normal range?
  Historical mailing list - Max Wellhouse
  Sun, 10 Apr 2011 04:41:53 -0500
  ...top of the instrument cluster cover(OP/FP, Vacuum, and WT/OT) Two toggle switches mounted in front allow me to flip back and...
• Re: Surging Idle
  Historical mailing list - Jay L Snyder
  Mon, 14 Oct 2002 11:34:43 -0400
  ...of whack or the throttle switch is hanging up. If this doesn't cure it, start looking for vacuum leaks. If you haven't...
• Re: Warm engine missing 87 Westy GL
  Historical mailing list - Scott Daniel - Turbovans
  Mon, 24 Aug 2009 19:41:40 -0700
  ...the vacuum line to the fuel pressure regulator could be off or broken. also.........here's one I find regularly - the throttle switch at...
• Cold Idle Diagnosis (1.9L)
  Historical mailing list - Michael Diehr
  Tue, 22 Jun 2004 11:46:22 -0700
  ...Many problems are caused by air/vacuum leaks. Do a really good physical inspection of the engine. Replace all suspect vacuum hoses. Take off...
• Re: Monitoring aux battery charging?
  Historical mailing list - Rocket J Squirrel
  Sun, 10 Oct 2004 16:49:17 -0700
  ...A SPDT toggle switch lets me switch the input of the voltmeter between the aux and engine battery. I used a center-off on...
• Re: Van adventure and tech quiz
  Historical mailing list - Dan N
  Thu, 28 Apr 2022 11:19:05 -0700
  ...net> wrote: > I’ll go with > > Throttle Position Switch > > Throttle Idle Screw not open enough > > Vacuum Leak > > Intake Leak > > Timing not advanced enough > > Low...
• Re: Wire Leaked it's smoke
  Historical mailing list - Charles McGehee
  Wed, 20 Jun 2001 06:03:46 -0700
  ...Interestingly, the pump comes on when you turn off the key. >Upon inspection, I found that the wire from the power steering pump switch...
• Re: High idle - fixed!
  Historical mailing list - Rick Koller
  Sat, 1 Oct 2005 17:09:17 -0400
  ...I searched high and lo for vacuum leaks and bad grounds to no avail. I switched every component in the fuel injection system still...
• Re: Question about Transmission Stutter
  Historical mailing list - Dennis Haynes
  Tue, 21 Mar 2017 18:52:09 +0000
  $10 says you reversed the connectors for the auxiliary air regulator and throttle switch. Easy way to check: Key on, engine off, remove both...
• Re: Isolating an idle problem?
  Historical mailing list - Don Hanson
  Sun, 21 Dec 2014 19:15:35 -0800
  ...My idle control thingy hums as normal and I have no > > obvious new vacuum leaks. Multiple different fuel sources. Throttle > > switch seems to conform...
• Re: Peloquin experience?
  Historical mailing list - Mark Tuovinen
  Fri, 16 Nov 2007 16:54:27 -0900
  ...No switch, no > panel, no > >>> vacuum reservoir. I'm hoping the Peloquin locker setup would > be an > >>> easier > >>> way to go than a stock...
• Re: vanagon Digest - 27 Apr 2007 - Special issue (#2007-438)
  Historical mailing list - Keith Hughes
  Fri, 27 Apr 2007 18:28:11 -0700
  ...Injectors >were recently reconditioned by Cruzin Performance >(www.cruzinperformance.com) and all have a beautiful spray pattern. >Thermo-time switch is working correctly, thus...
• Re: Hmm . . . second temp gauge?
  Historical mailing list - Simon Reinhardt
  Fri, 13 Aug 2004 09:42:07 -0600
  ...The other parts involved are a vacuum sensor on the back of the cluster, and the (possibly pre-existing) cruise control sensor on the...
• Re: Differential Lock curiosity
  Historical mailing list - Dr. Rainer Woitok
  Wed, 2 Dec 1998 15:29:35 +0100
  ...Have the gear in neutral, release the parking brake, start the engine to get enough vacuum, and pull the diff lock switch. Then hold...
• Digijet Idle Problems
  Historical mailing list - Michael Diehr
  Tue, 12 Aug 2008 13:46:57 -0700
  ...I'm 99% sure the throttle idle switch is working properly. Oddly, this behavior seems worse at 5btdc than at 0. (I say oddly...
• Re: The two throttle valve switches, redux
  Historical mailing list - Michael Elliott
  Tue, 25 Sep 2007 23:17:08 -0700
  ...Both switches >>>> ground Pin 4, the ECU doesn't have any way to know which switch did it. >>>> >>>> Now if the engine is at...
• Re: O2 Sensor problem
  Historical mailing list - mccullough bob
  Sun, 22 Mar 2020 12:31:06 -0500
  ...to hall, TB switch, Temp sensor, AFM, good > pin 2 to O2 sensor good > pin 19 to ground good > 8 Vacuum 15 “ at idle...
• Re: [SYNCRO] Dif Lock
  Historical mailing list - Joel Cort
  Sun, 20 Feb 2000 17:01:19 -0800
  ...Second now why didn't the pullout switch work? It is all vaccum actuated so there are no cables to deal with (at least...
• Re: No idle when engine cold
  Historical mailing list - Chris S
  Sat, 25 Apr 2020 12:17:37 -0400
  ...I switched the clamp for a wide stainless/pinch less piece. Problem solved! Chris. Wysłane z iPhone'a > Wiadomość napisana przez Dennis Haynes <d23haynes57...
• Re: Vanagon Syndrome Solved, finally!
  Historical mailing list - tom ring
  Tue, 18 Oct 2005 20:36:38 -0500
  I found, after many hours over several months, that my zero throttle/fullthrottle switch had fallen off of the bottom of the throttle body...
• Re: Stranded in my driveway as I try to leave on a 10 day trip :(
  Historical mailing list - Steve Williams (Contractor)
  Sun, 9 Jul 2023 11:11:33 -0600
  ...HUGE vacuum leak. Totally insane. Only a 2.5 hour delay while I went through the Bentley. lol Thanks, Steve Williams On 7/9...
• Re: need A/C tips. 87 gl
  Historical mailing list - Larry Alofs
  Wed, 17 Jul 2002 20:41:46 -0500
  ...Pull a good vacuum and then close the valves and watch the gauge for an hour or so to see if there is any...
• Re: 2.1 Engine idles at 2600 rpm; 2nd computer doesn't fix
  Historical mailing list - Kenneth Wilford
  Mon, 17 Apr 2006 16:25:32 -0400
  How about a vacuum leak? Thanks, Ken Wilford John 3:16 http://www.vanagain.com http://www.strictlyvwauctions.com http://www.eurovan.org http...
• Re: UPDATE - Won't idle but getting combustion-'88 2.1L (Long)
  Historical mailing list - Barrett Willet
  Sun, 31 Jul 2005 08:28:15 -0700
  ...sensor disconnected. > Neither helped > Check all vacuum lines for proper connection but have not performed any > vacuum checks. > > Thanks > Barrett Willet > > On Jul 29...
• Re: How do you get a gremlin out of a Vanagon?
  Historical mailing list - Chris S.
  Thu, 6 Dec 2007 07:11:52 -0800
  ...Do a vacuum test. The manifold pressure/vacuum should be around 15 and steady at idle. If the needle is not steady then your...
• Air-flow Sensor, 85 Waterboxer[via LSMTP - see www.lsoft.com]
  Historical mailing list
  Sat, 22 Nov 1997 23:04:00 -0500
  ...a) Throttle switch faulty or misadjusted. - It's fine. b) Fuel injectors faulty or clogged. - They're clean. c) Vacuum leak. - No leaks. d...
• Re: R-134A retrofit (JC WHIPME content)
  Historical mailing list - Kenneth D Lewis
  Fri, 9 Apr 1999 14:04:38 -0400
  ...Do you own or have access to gauges, vacuum pump and assorted tools and adaptors? Do you know what pressures to expect? Good Luck...
• Re: Different Kind Of Valve Adjustment Question? NOW What's next?
  Historical mailing list - Scott Daniel - Turbovans
  Mon, 28 Jul 2008 20:18:38 -0700
  ...I also replaced the Fan switch and have > heard it run at low speed during idling and traffic. As I drive on > the highway...
• diff lock/limited slip axle
  Historical mailing list - Joe
  Mon, 1 Dec 1997 12:15:12 -0500
  ...The actuator is about $165, not > > to mention all the vacuum lines, switch, etc. Best to bide your time > > and look for a junker...
• CO Adjusting Screw, Throttle Valve Switch Test Light Video etc.
  Historical mailing list - neil n
  Tue, 26 Jun 2012 18:23:05 -0700
  ...As for the throttle valve switch, I connected a test 12V LED. The logic is reverse, but the test light shows that the TVS...
• Bleeding Bloody Brakes
  Historical mailing list
  23 Dec 96 05:58:11 PST
  ...It pulled a mity vacuum, but all it did was to to pull air into the bleed line due to the leak of the...
• Re: New Member
  Historical mailing list - Robin Oomkes
  Tue, 28 Sep 2004 21:43:41 +0200
  ...In working condition, pulling the diff lock knob actuates a vacuum switch at the differential. This 'pre-engages' the diff lock. As soon as...
• cold run problems
  Historical mailing list - James Creech
  Wed, 22 Nov 2000 12:59:45 -0500
  ...within specs tests / adjustment (per Bentley) on throttle valve switch, idle speed control valve, air flow meter, temp 2 sensor (my testing on all...
• Re: Help Losing Idle!(still)
  Historical mailing list - Matt Sutton
  Tue, 18 Feb 2003 15:41:53 -0400
  ...Double-checked and reset the throttle switch per Bentley, and renewed the vacuum line connection to the charcoal canister along with the short hose...
• Help ongoing '78 problems
  Historical mailing list - John Anderson
  Mon, 2 Oct 95 21:16:47 EDT
  ...I took her on the first major trip this weekend after replacing all of the vacuum lines in the engine compartment including the manifold...
• Re: No current at FI injector plug
  Historical mailing list - Dennis Haynes
  Sun, 31 Jan 2010 23:06:29 -0500
  These engines actually use a switch in the air flow meter to run the pump. Make sure it is connected, none of the wires...
• Re: Did a silly thing, white elephant acquired
  Historical mailing list - Roger Whittaker
  Thu, 8 Sep 2022 17:49:18 -0700
  ...things like vacuum/pressure, volts, ohms , > dwell, timing etc. plus a screen that is more or less an oscilloscope. Plus > button switches and wood...
• Results of the Diff Lock activator discussion
  Historical mailing list - Malcolm Stebbins
  Tue, 20 Jul 1999 17:19:17 -0300
  ...Using vacuum will keeps pressure on until they do, unlike a momentary solenoid. Eric <<vw4x4@fyi.net> Just as a sent this last post...
• Re: 84 Vanagon: Would you fix if it yourself (if you were me?)
  Historical mailing list
  Tue, 22 Oct 1996 20:46:13 -0700
  ...A bad throttle > switch will not cause the above conditons. I would also make sure that all > the grounds are good. I would definately...
• Re: Lola's first test trip: The Good, The Bad & the Ugly. (Sorry, Long)
  Historical mailing list - kenneth wilford (Van-Again)
  Mon, 3 Jun 2013 10:13:28 -0400
  ...You can verify switch function with a vacuum tester and an ohm meter. When there is no foot on the pedal the switch should...
• Re: Fw: What's Wrong with my 83' Vanagon?
  Historical mailing list - jhlauterbach
  Sun, 23 Sep 2001 12:11:56 -0400
  ...I have replaced all engine gaskets, (including heads) water pump, thermostat, fan switch, fuel filter, O2 sensor, piston rings, complete tune-up and probably...
• used engine parts for Sale
  Historical mailing list - Bob Donalds
  Sat, 28 Apr 2007 23:34:47 -0400
  ...some kind. > Now, from the Bentley, this may be a theromtime switch. If so, does > it just have an electrical coonector, or something else...
• Re: 2.1 Syncro; Failed Emissions "Say it isnt so Joe:" :o)
  Historical mailing list - Scott Daniel - Turbovans
  Sat, 18 Oct 2008 15:44:10 -0700
  ...also............check throttle switch adjustment. get the van as hot as you can get it for the sniff test. I've not tried it...
• Re: Intermittent Ignition miss, no start,or rich running, need help!,LONG
  Historical mailing list - Bulley
  Thu, 7 Oct 1999 09:57:26 -0400
  ...Since it was already adjusted to the limit of its range, I had to remove the throttle body to bend the switch arm for...
• Re: Isolating an idle problem?
  Historical mailing list - Dennis Jowell
  Mon, 22 Dec 2014 06:49:33 -0500
  ...My idle control thingy hums as normal and I have no >>> obvious new vacuum leaks. Multiple different fuel sources. Throttle >>> switch seems to conform...
• Re: 91 Carat - Rpm hunting
  Historical mailing list - Scott Daniel - Turbovans
  Sat, 23 Oct 2010 15:37:50 -0700
  ...the switches get stuck or corroded ....or can't reach adjustment .. the electro-pneumatic switch ..OTOH, since it senses vacuum to know when the...
• Re: Idle stabilizer
  Historical mailing list - Don & Christina Preston
  Thu, 10 Jan 2002 08:54:03 -0800
  ...vacuum lines in the engine compartment Temp II sensor Ground Straps (also added another to the right head) O2 Sensor Throttle Positioning Switch (bottom...
• Re: Do U carry spare ECU?
  Historical mailing list - Old Volks Home
  Thu, 15 Apr 2010 08:52:16 -0700
  ...Had a fan switch go bad once, didn't have a spare, so I rigged to have it manually switched using a spare rear...
• Re: buses for sale: 71 p/u, 81 camper
  Historical mailing list - David Schwarze
  Sun, 6 Nov 94 15:45:20 PST
  ...Ever since then I have wanted to hook something like that up that I can activate via a cockpit switch to take care of...
• ECU pin 20 thread.
  Historical mailing list - kenneth d lewis
  Tue, 26 Dec 2000 18:08:38 EST
  ...The enrichment/idle switches are functioning. The coolant sensor has been replaced and another ECM was apparently tried without success. There are no vacuum...