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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 4+: 60 results shown for throttle valve.

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

• Re: idle problems
  Historical mailing list - Dennis Haynes
  Mon, 23 Aug 2010 00:11:30 -0400
  ...surging idle, throttle body tight and returns to stop every time. switch ok and working. all idle booster and cold start valves have the...
• Re: 2.1 Electronic Idle Control valve
  Historical mailing list - John Bange
  Thu, 6 Mar 2008 22:40:08 -0800
  ...sends pulses to the valve to open it. The duration > (duty cycle) determiens how much it opens bypassing the throttle to give > more idle...
• Pulsating Idle when cold
  Historical mailing list - Tim Marciniak
  Sun, 10 Apr 2005 21:11:56 -0500
  ...Checked and adjusted the throttle valve switch Checked an adjusted ignition timing New airfilter Fuel pressure ok. Checked for false air leaks Control valve...
• FS: Rubber boot betwen AFM and Throttle body 88 GL
  Historical mailing list - Robert Lilley
  Tue, 29 Apr 2003 14:35:28 EDT
  ...the air makes flowing past the butterfly valve... (Yes I have replaced the seals on the throttle body main shaft and it is not...
• Re: The two throttle valve switches, redux
  Historical mailing list - Michael Elliott
  Wed, 26 Sep 2007 07:22:35 -0700
  Hi Mike, both the full throttle switch and the idle switch connect to the same ECU pin (4) and they both ground it. So...
• Re: How long does it take your Vanagon to warm up
  Historical mailing list - Warren Lail
  Sun, 15 May 2005 08:25:20 -0500
  ...Is it likely to have carbon build-up on the intake valves so soon? I am reluctant to introduce additives of any kind to...
• 87 Westi, Idle problems...
  Historical mailing list - Don Record
  Mon, 14 Aug 2000 05:51:12 EDT
  ...usual suspects for this problem are throttle switch, O2 Sensor, TempII Sensor, Idle controller, and Idle stabilizer valve. The van runs worse with the...
• 2.1 parts on e-bay
  Historical mailing list - Rob
  Fri, 28 Jul 2006 05:30:38 -0700
  Throttle body, intake bellows, idle stabilization valve & spring. All from an '87 2.1 http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=290011712875...
• Re: Another Vanagon Throttle Question ('87 Wolfsburg)
  Historical mailing list - Frank Condelli
  Wed, 4 May 2005 06:31:35 EDT
  ...Then check to see if the throttle valve is sticking due to cable problems or valve sticking in the throat of the throttle body...
• High Idle problem, help!
  Historical mailing list
  Mon, 18 Dec 95 14:56 CST
  ...Last year I had the throttle valve removed and cleaned while it was in for service and have had no further problems. -Jim Bryant
• Re: High Idle, Setting the timing
  Historical mailing list - Loretta Abbott-Kennon
  Mon, 28 Jan 2002 21:35:25 EST
  I fixed my idle problem on my 87 Syncro by cleaning out the idle stabilizer valve with a throttle body cleaning spray. -Loretta 87...
• FW: Idle Control Issues
  Historical mailing list - Robert Clemmer
  Fri, 19 Jul 2013 18:48:27 -0400
  ...Turned out to be the throttle position switch was out of adjustment and wasn't indicating closed throttle. When I'd tap the pedal...
• idle problems
  Historical mailing list - Mike Riley
  Tue, 17 Aug 2010 19:01:12 -0400
  ...surging idle, throttle body tight and returns to stop every time. switch ok and working. all idle booster and cold start valves have the...
• 84 Vanagon: Would you fix if it yourself (if you were me?)
  Historical mailing list
  Mon, 21 Oct 1996 18:41:31 -0700
  ...sticking throttle valve ($6.00 cleaner & brush, 118.00 labor) Q: Can just anyone find this throttle valve and clean it? How hard is...
• Re: fuel system questions
  Historical mailing list - Gary Stearns
  Mon, 13 Nov 2000 19:50:05 -0500
  ...Any shortcuts here (like quickly > & temporarily stopping up the sensor hole with something during the switch > to new sensor?) > > (3) On the throttle valve...
• Getting a handle on Idle problems...
  Historical mailing list - Robert Lilley
  Sun, 20 Apr 2003 23:11:02 EDT
  ...The throttle body: -passes a determined amount of air past the closed butterfly due to its factory settings. -The big screw in the throttle...
• Re: Idle gremlins still at play
  Historical mailing list - Eric Caron
  Tue, 27 Jul 2021 15:09:53 -0400
  ...idle control unit) and more > expensive? > > What's the impact of running with the power to the idle control valve > disconnected while I await...
• The two throttle valve switches
  Historical mailing list - Michael Elliott
  Tue, 25 Sep 2007 10:18:44 -0700
  ...There are two switches on the throttle valve. One closes when the foot is off the gas pedal, one closes when the pedal is...
• Re: runs rough cold (still)
  Historical mailing list - Hotch
  Sat, 4 Oct 1997 19:33:42 +0000
  ...I talked to my mechanic when I took it in for inspection and he recommended I check the throttle valve. I adjusted the throttle...
• Re: How long does it take your Vanagon to warm up
  Historical mailing list - Dennis Haynes
  Sun, 15 May 2005 10:14:50 -0400
  If oil is getting down the valve guides, build can happen quickly. Driving habits can also add to this. I use the Techron cleaner...
• Re: Idle Stabilizer System Delete. Cause Bog Off Idle?
  Historical mailing list - Dennis Haynes
  Sun, 12 Apr 2015 09:19:52 -0400
  ...Excessive valve deposits, poor injector spray patterns and even worn valves/guides are common culprits. Unplugging the throttle switch will completely remove that as...
• Re: vacuum tee behind throttle on 1.9L engine (1984)
  Historical mailing list - David Beierl
  Tue, 23 Aug 2011 10:23:08 -0400
  At 07:54 PM 8/17/2011, John Lauterbach wrote: >Vacuum tee behind throttle has two UNEQUAL legs. Does leg with >restriction go to...
• Re: Throttle Valve Stop Screw Adjustment.
  Historical mailing list - neil n
  Wed, 4 Jul 2012 10:55:12 -0700
  ...Seems I"m not entirely crazy (connecting an LED to throttle valve switch prooved useful). Dennis: I'll check the evap valve operation. Engine...
• Re: Cold Engine/high idle
  Historical mailing list - Randy Herd
  Wed, 7 Jun 2000 12:21:12 MDT
  Katy, A stuck throttle switch would probably not cause a high idle when the engine is cold. Normally it would either not idle when...
• Charcoal filter valve ?
  Historical mailing list - Randolph Feuerriegel
  Fri, 21 Aug 1998 22:33:35 -0700
  ...engine bay, revving the motor from the throttle body, and heard this sharp click from the valve. In fact, when you put your hand...
• Accel. cable changed, still sticky
  Historical mailing list - �ѻ� Tim Crooks
  Mon, 31 Jan 2000 03:40:11 -0500
  ...I went back and slicked up the linkage on the throttle valve with graphite. I am not sure if I have the spring hooked...
• Re: full throttle switch boost?
  Historical mailing list - Dennis Haynes
  Thu, 30 Aug 2001 21:18:47 -0400
  ...full throttle switch boost? If you have a digitool hooked up when the full throttle switch is made up, you will see the volts...
• Throttle switch - am I thinking about this right?
  Historical mailing list - john Runberg
  Mon, 3 Mar 2003 00:15:22 -0500
  I'm trying to diagnose some problems with my '90 and want to make sure I completely understand how the throttle valve switch works...
• Re: throttle body housing
  Historical mailing list - Jeff at Vanagonparts
  Sun, 26 Sep 2004 20:23:19 -0700
  ...throttle body housing Greetings everyone, I need a new throttle body housing, complete. Mine is worn inside and the butterfly valve is sticking. The...
• Re: Throttle body issues
  Historical mailing list - Richard A Jones
  Mon, 9 Feb 2009 21:53:12 -0700
  > Upon further inspection I noticed there is scoring on t= > he interior of the throttle body from the butterfly valve rubbing against i= > t...
• Re: van cuts out
  Historical mailing list - Steve Cotsford
  Mon, 28 May 2001 21:34:17 EDT
  ...This valve is very hard to get to. It is beneath the black rubber inlet tubing between the AFM and the throttle body. There...
• Re: 2.l idle issues continued
  Historical mailing list - John Rodgers
  Sun, 10 Feb 2002 22:22:19 -0600
  The idle speed sounds good, but when switching on the AC kills the engine, that definitely points to the Idle Stabilizer Valve. If it...
• Re: Throttle valve positioner
  Historical mailing list
  Fri, 10 Feb 1995 12:26:15 -0500
  >It's supposed to hold the throttle open when deceleration, and has two hose >connections to it. One is bigger, I think that this...
• Re: Arduino and Vanagons
  Historical mailing list - Brett Ne
  Thu, 14 Nov 2013 17:24:56 -0800
  ...throttle valve switch 1 PWM output: idle speed stabilizer valve The ICU adjusts the PWM signal to the idle air valve about 4 times...
• Re: FrontFire?
  Historical mailing list - Dennis Haynes
  Sun, 14 May 2006 15:23:46 -0400
  Maybe a leaking intake valve is causing the bad idle. Time for a leak down and compression test. Leaking/sticking intake valves on SMC...
• Re: Idle problems
  Historical mailing list - Rico Dagastino
  Fri, 23 Oct 2009 08:36:27 EDT
  The throttle cable is new and the operation of the pedal and linkage on top of the throttle body is unobstructed. In addition, i...
• throttle valve cable spring installation
  Historical mailing list - Craig Oda's Personal email
  Mon, 21 Oct 2002 22:10:40 -0700
  Hi, on the throttle assembly there is a spring that is about 1/4" in diameter that fits around the end of the throttle...
• Re: The two throttle valve switches, redux
  Historical mailing list - Mike Collum
  Wed, 26 Sep 2007 10:28:31 -0400
  ...Mike Michael Elliott wrote: > Hi Mike, both the full throttle switch and the idle switch connect to > the same ECU pin (4) and they...
• Re: Idle Control Issues
  Historical mailing list - Craig Forney
  Sat, 20 Jul 2013 22:55:32 -0700
  ...The AC compressor engaging sends a signal to the ISCM and increases idle speed a bit when the throttle is closed (assuming the throttle...
• Re: 84 Vanagon: Would you fix if it yourself (if you were me?)
  Historical mailing list - ERIC ZENO
  Mon, 21 Oct 1996 23:11:39 -0400 (EDT)
  ...sticking throttle valve ($6.00 cleaner & brush, 118.00 labor) > Q: Can just anyone find this throttle valve and clean it? How > hard is...
• Re: Weird "idle" problem
  Historical mailing list - Dennis Haynes
  Thu, 16 Oct 2014 17:57:46 -0400
  ...As for the throttle switches on the Vanagon they are there for only two reasons. Closed throttle if the engine is being overrun such...
• Re: Second Request for Help - Throttle Valve Switch
  Historical mailing list - Dave Baker
  Mon, 6 Jan 2003 22:19:25 -0600
  ...Second Request for Help - Throttle Valve Switch > Dave, > > I don't think I fully understand what happened here. Are you talking about > the wires...
• Re: Failure to return to idle
  Historical mailing list - Frank Condelli
  Sun, 31 Dec 2006 07:14:58 EST
  ...After that I would go looking at the setting of the throttle body idle control switch, the operation of the ICV (idle control valve...
• Re: High idle - throttle position switch
  Historical mailing list - Dennis Haynes
  Sat, 6 Aug 2011 09:37:19 -0400
  ...High idle indicates a failure of the valve (not closing) or the throttle is not closing or basic settings so far off low idle...
• Re: 2.1 Electronic Idle Control valve
  Historical mailing list - Dennis Haynes
  Thu, 6 Mar 2008 09:12:08 -0500
  ...sends pulses to the valve to open it. The duration (duty cycle) determiens how much it opens bypassing the throttle to give more idle...
• Lunch with Bentley
  Historical mailing list - Dave Kautz
  Mon, 21 Nov 94 14:07:08 PST
  ...The sensor operates neither below 300 degrees C nor when turned off at full throttle by a microswitch on the throttle valve housing." So...
• Re: Failure to return to idle
  Historical mailing list - Jerry
  Sat, 30 Dec 2006 21:16:19 -0600
  The easiest way to determine between a linkage/cable problem is to isolate or remove the cable from the throttle valve at the throttle...
• =?utf-8?Q?Re=3A_Are_all_2.1_engines_digifant=3F?=
  Historical mailing list - Mike Holm Toronto
  Sun, 4 May 2014 17:16:53 -0400
  ...If the throttle cable (or rod on auto-trans) is too tight the throttle plate may not be reaching the idle stop. If the...
• Re: 1982 EGR valve Redux, now flaming cylinder heads
  Historical mailing list - Dennis Haynes
  Mon, 2 Jun 2003 23:13:17 -0400
  ...At idle and full throttle the valve should be closed. The fuel mixture is richened at full throttle to keep things from burning up...
• Re: Throttle valve housing question......
  Historical mailing list - Kenneth D Lewis
  Tue, 11 Sep 2001 21:22:38 -0400
  ...to remedy crap fuel mileage I took a look inside my > throttle > valve housing (I've done everything else I could > do..........replaced the...
• Throttle Valve Switch: What the...?
  Historical mailing list
  Thu, 25 Oct 2007 14:05:21 -0400
  ...The aforementioned throttle valve switch, after all of my loving care, took a complete crap on me. The switch doesn't click on at...
• Re: Homemade head temp gauge?
  Historical mailing list - Alistair Bell
  Wed, 14 Jun 1995 20:16:48 -0700 (PDT)
  ...BTW how do you measure those throttle settings (12%, 17% etc)? Is it taken at the throttle valve, a potentiometer as in the Digifant...
• 85 Vanagon throttle valve switch -- update
  Historical mailing list - Kyle Hamilton
  Tue, 29 Jun 2004 19:51:41 -0400
  ...Half a can of brake cleaner, and a quarter can of carburetor cleaner later, we had a throttle body that was /much/ cleaner, and...
• Does a worn pressure relief valve cause Oil pressure buzzer?
  Historical mailing list - Mark Keller
  Thu, 3 Oct 2002 08:02:59 -0700
  ...the throttle, i.e. cresting the hill. I'm also having very infrequent but associated with the buzzer episodes a split second valve clatter...
• Re: 85 Uneven idle again
  Historical mailing list - Mark Drillock
  Sat, 9 Dec 2000 06:54:51 -0800
  ...Mark Douglas Miller wrote: > > Could the idle speed adjusting screw/throttle valve housing be my > problem? Is a 1.9 throttle housing interchangeable with...
• Re: Using American engines for Vanagon swap - why the heck not? - Long
  Historical mailing list - Andrew
  Sat, 23 Mar 2002 08:36:51 -0800
  ...TPSs and AFMs are both potentiometers, TPS is mechanical (on the throttle body attached to the trottle valve), AFM is numatic, a flap that...
• FS 78-83 Air Cooled FI Systems (2)
  Historical mailing list - Stan Wilder
  Fri, 14 Jun 2002 18:05:02 -0500
  ...Throttle Valve switch. (Full throttle switch) Engine Temperature Sensor Part # 0.280.130.012 Pressure Regulator (vacuum Limiter) Part # 0.280.160.100 Resistor...
• IDLE, in gear, stall
  Historical mailing list - Cary McHugh
  Fri, 7 Apr 2000 12:43:49 EDT
  ...I had reinstalled the throttle return spring on the wrong side of the throttle valve and then monkeyed with the throttle linkage adjustment at...
• Re: Throttle Valve Stop Screw Adjustment.
  Historical mailing list - Alistair Bell
  Tue, 3 Jul 2012 21:54:42 -0700
  ...alistair On 2012-07-03, at 9:28 PM, neil n wrote: > Thank you Alistair. > > As it stands the hole is partially covered, throttle...
• Smog.
  Historical mailing list - Dave Kautz
  Mon, 2 Oct 95 14:24:52 PDT
  ...doggy" whenever the EGR valve is open. It opens at about 25% throttle and closes shortly before full throttle. Do we have any folks...