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Page 9+: 60 results shown for Cold Start 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 gremlins still at play
  Historical mailing list - OlRivrRat
  Tue, 10 Aug 2021 21:59:55 -0600
  ...The idle is >>> controlled by the throttle valve actuator and timing via a sensor... If you >>> start your cold engine and it idles right...
• Different Kind Of Valve Adjustment Question?
  Historical mailing list - Max Wellhouse
  Fri, 18 Jul 2008 06:34:42 -0500
  ...Should the valve clearances/preload be the same regardless of whether the engine is hot or cold? 3. Outside of sporadic driving of the...
• Re: [*sp@m*] Re: Compression test - cold vs hot?
  Historical mailing list - Jaap Nauta
  Fri, 18 Mar 2005 23:40:37 +0100
  ...to make a distinction between worn out rings and worn out valves. Start with a (hand)warm engine, so piston and cylinder are closer...
• very loud Screeching noise on very cold days - turns heads
  Historical mailing list - Marshall
  Wed, 6 Mar 2002 08:37:01 -0600
  ...after it is initially started. 1. I am not using one of the good Mahl oil filters with valves - could it be the main...
• Re: COLD START PROBLEM!!!!!!!!! anyone!!!!!
  Historical mailing list - Benoit
  Mon, 1 Aug 2005 22:35:51 -0400
  ...valve is open so i should have a "cold >>start"... >> >>I feel that i have a fuel pressure ploblem... but am not sure... fuel...
• Re: New engine, was Re: Ecu fix addendum
  Historical mailing list - Neil N
  Wed, 1 Apr 2020 16:46:54 -0700
  ...life (lots of oil leaks, piston skirts quite scuffed) - first start engine cold, it idles rough for about 30 seconds. Cause: lazy or leaking...
• [Q] Fuel Inj problem
  Historical mailing list - Jesse L Reynolds
  Thu, 6 Jul 1995 17:57:50 -0400 (EDT)
  ...This could be a leaky or over-active cold-start valve. Or, the brain maight think that the van is very cold, and thuse...
• Re: Stalling at Idle when cold
  Historical mailing list - Hotch
  Thu, 18 Sep 1997 19:29:02 +0000
  ...Stalling at Idle when cold >FWIW - >Let's try to remember that the Digijet Wasserboxer (83-85) uses an >Auxilary Air Valve. The Digifant...
• Re: Noisy lifter
  Historical mailing list - G.M.Bulley
  Mon, 7 Oct 2002 14:14:41 -0400
  ...Its usually worst when cold and first started - it does improve somewhat after driving a few hundred miles, but I can still hear the...
• Re: Dometic 182 B Fridge- Ad Nauseum
  Historical mailing list - Jim Felder
  Sat, 8 Aug 2009 09:59:13 -0500
  ...In the car the fridge was hard to start , and did'nt run cold, because of the pinched line. > I figured the owner damaged...
• Re: 87GL, Cold Engine Problem
  Historical mailing list - Stuart MacMillan
  Mon, 5 Jun 2000 11:14:51 -0700
  Check your cold start air enrichment valve. It is buried under the hoses on the right side of the engine, and one of those...
• Re: Hydrolic lifters- 81'
  Historical mailing list - R.D. Robertson
  Fri, 10 May 1996 15:04:32 -0500
  ...IMPORTANT! Watch the valve. As you turn the adjusting screw in, the valve should start to move in, which opens the valve. Usually one...
• Re: Shade tree wiring of a cold start valve on a 2.1?
  Historical mailing list - Max Wellhouse
  Sat, 10 Jan 2009 02:59:14 -0600
  ...According to the Bus Depot parts list, that cold start valve was used on a ton of different VW's and FWIW, some guy...
• Re: COLD START PROBLEM!!!!!!!!! anyone!!!!!
  Historical mailing list - Dennis Haynes
  Mon, 1 Aug 2005 22:46:50 -0400
  ...valve is open so i should have a "cold start"... I feel that i have a fuel pressure ploblem... but am not sure... fuel...
• Re: Blue smoke at start-up
  Historical mailing list - Dennis Haynes
  Mon, 14 Jan 2002 21:06:51 -0500
  ...Occasional heavy blue smoke when pulling away from a cold start. Not while idling, not while "revving it up" in neutral. Only occasionally, and...
• Vacuum leaks...
  Historical mailing list
  Sun, 9 Jun 1996 23:47:03 -0500
  The '89 has been having problems idling after starting cold (and sometimes when warm). Five minutes of warm-up usually fixes most of the...
• Re: Arduino and Vanagons
  Historical mailing list - JRodgers
  Sat, 16 Nov 2013 14:25:57 -0600
  ...idle air valve when: >>> --the engine is cold, the starter is engaged, and the coil is >>> shorted >>> --the engine is cold & running >>> --the engine...
• Re: Timing
  Historical mailing list - Paul Borghese
  Thu, 11 Jun 1998 21:53:34 -0400
  ...I am having a problem with >the cold start valve, does not work with the engine cold, only with a >slightly warm engine, i...
• Re: Adjusting Valves 78 Air Cooled
  Historical mailing list - Stan Wilder
  Fri, 31 Jan 2003 23:53:35 -0600
  ...I adjusted the valves at 1 turn down, cranked the engine ......... no compression ......... no start. I adjusted the valves at .006 (Boston Bob's...
• Re: Engine start-up trouble
  Historical mailing list - John Rodgers
  Wed, 14 Aug 2002 07:48:39 -0500
  John The problem is most likely related to the Idle Stabilizer Valve (ISV) circuit. The stabilizer valve operates when the engine is cold to...
• No injector pulse Aircooled AFC injection
  Historical mailing list - Vanagon Man
  Sat, 27 Mar 2004 17:50:56 -0500
  ...tested for injector pulse with a noid light.......yes on cold start valve, no on other injectors. Tried different harness, same luck. What am...
• Re: Yucatan trip report (not mine)
  Historical mailing list - Ed
  Sun, 1 Mar 2009 17:31:47 -0500
  ...wired the windshield washer pump wires to the cold start valve (an electric fuel spray valve in the intake plenum) and supplied pulses of...
• Re: low rpm flat spot
  Historical mailing list - Joel Walker
  Thu, 10 Nov 94 21:01:44 CST
  ...This problem manifests itself only after the engine is >warm and presumably off the cold start injector. I have replaced the here are some...
• '87 stumbling at idle/low speeds
  Historical mailing list - - Jeff & Kim Prudhoe
  Mon, 18 Jun 2007 00:14:03 EDT
  ...From a cold start the van will idle for 4-5 minutes at 900 RPM before stumbling and stalling out. The tach would spike...
• 89 syncro westy ac saga continues
  Historical mailing list - Mick Kalber
  Thu, 10 Aug 2000 12:33:11 -1000
  ...no cold air. So, he figured since we have a new compressor, maybe the expansion valve is stuck open. He replaced the expansion valve...
• Re: random stalling
  Historical mailing list - Claudio Cella
  Mon, 14 Oct 2002 08:36:11 -0700
  ...random stalling Hi all, My bus has a random stalling problem when cold. It always starts great. Sometimes after I start it, the idle...
• Re: Stalling at Idle when cold
  Historical mailing list - Sean Bartnik
  Wed, 17 Sep 1997 10:27:29 EDT
  > > Dan, > The cold idle circuit of most Bosch fuel injection systems incorporate > an "auxillary air regulator". When you start the engine, this valve is...
• 81 Vanagon Type 4 Motor Timing
  Historical mailing list - Geoffrey Toye
  Mon, 23 Mar 2020 17:47:07 -0400
  ...can on the SVDA distributor is up tight against the cold start valve and I need to turn the distributor in that direction. (I...
• Re: Where is temperature sensor & why does needle drop when heater is on?
  Historical mailing list - SDF ( aka ;jim lahey' - Scott )
  Mon, 7 Sep 2015 22:00:49 -1000
  ...when it's really cold, don't start driving with the heater one ..i.e. heater valve open.. as it will cool the engine...
• 84 Vanagon 1.9 pulsing idle
  Historical mailing list - Marcus Schaper
  Mon, 12 Apr 1999 19:39:02 EDT
  ...warm, the idle starts pulsing. As soon as I put my foot on the gas pedal the problem is gone. Cold idle fine, maybe...
• Re: gas tank overflows, engine probs
  Historical mailing list - Gary Shea
  Mon, 6 Apr 1998 10:26:01 -0600
  ...There's another piece of the FI system (quite near the cold start valve, in fact...) that has a short timescale also, although I...
• Re: Gear lube, now thanks
  Historical mailing list - mike miller
  Mon, 28 May 2001 20:03:18 -0700
  ...hydraulic lifters on the WBX engines pumped up so you don't get valve > clatter on a cold startup. > > John Rodgers > 88 GL Driver >
• Re: Idle stabilizer testing
  Historical mailing list - Joel Walker
  Fri, 20 May 94 14:15:22 CDT
  >I've been checking out the idle stabilizer because of no cold start >high idle. At lunch today I quickly tested the valve using...
• Re: Arduino and Vanagons
  Historical mailing list - Brett Ne
  Tue, 3 Dec 2013 16:46:04 -0800
  ...the idle valve during > cold > >>>> idle and during cold cranking and compare. > >>>> > >>>> First, let's calculate the resistance that the idle valve provides so...
• Re: 2.1 Electronic Idle Control valve
  Historical mailing list - Dennis Haynes
  Thu, 6 Mar 2008 09:12:08 -0500
  ...The actual jump in idle speed should only be 100 rpm or so but except for directly after a cold start, never over 1...
• Re: Leaking heater control valve
  Historical mailing list - Bruce Todd
  Wed, 15 Sep 2021 19:36:42 -0700
  ...the valve and connecting hose more coolant was starting to collect and drip down - not to my liking - and the system was cold. I...
• Help: '86 with erratic cold idle
  Historical mailing list - Eric Small
  Mon, 17 Jul 2000 23:34:24 EDT
  My '86 is suffering from an erratic cold idle. Shortly after starting the van the idle begins to alternately falter then stabilize repeatedly often...
• Re: Poor fuel consumption 81 aircooled- aux air reg bad?
  Historical mailing list - Stan Wilder
  Sun, 30 Dec 2001 15:15:02 -0600
  ...your cold start too. Check all ground wires Set your valves to one turn down from the rocker arm just touching the valve stem...
• Re: Problem Solved: On road, Having problem, coolant related
  Historical mailing list
  Mon, 24 Jan 2022 15:09:28 +0000
  ...Ambient air temp > was 45F not very cold. I will check the bypass valve tomorrow. > > Thanks, > Mark > > On Fri, Jan 21, 2022 at 4...
• Re: Digifant start up question> RPMs 'hunt around'
  Historical mailing list - Scott Daniel - Turbovans
  Tue, 12 Jul 2011 21:49:11 -0700
  ...small parts . start with the basics .. and really.. valve guides, wear valve seals get old and don't work well... a 'valve job' is...
• Re: Idle gremlins still at play
  Historical mailing list - Dan N
  Tue, 27 Jul 2021 13:48:14 -0700
  ...but on a cold engine start up you may want to push a bit on the gas pedal for a minute or 2, after...
• Re: Auxiliary Air Regulator - Testing - Digijet
  Historical mailing list - Dennis Haynes
  Wed, 29 Aug 2012 22:25:43 -0400
  ...Remember when cars had those things? Anyway, when the engine is started cold the AAR is open some amount based on ambient temperature. All...
• Re: DIESEL starting and other general questions
  Historical mailing list - Joel
  Tue, 18 Nov 2003 17:19:38 -0800
  On my 91 Jetta the instructions read to pull out the cold start knob on startup and push it back in when the temp...
• RapidIdle when Warm...
  Historical mailing list - Jon B Kanas
  Sat, 18 Nov 2000 10:57:40 -0700
  ...The Syncro starts and idles perfectly when cold. I suspect that either the temperature sensor or the idle air control valve no longer understands...
• Re: Oil pressure update.
  Historical mailing list - David Beierl
  Sun, 29 Apr 2001 21:10:16 -0400
  ...other peoples op readings start out at with cold engine? > >The only thing that's left is that relief valve, I suppose it could...
• Re: Idle Control
  Historical mailing list - David Boan
  Sat, 14 Nov 2020 23:51:32 +0000
  ...It contains a rotating-disk valve on a bimetal linkage that allows extra metered air to the engine when it's cold (metered meaning...
• Cold start 3 cylinder stalling and bucking idle insanity!!!
  Historical mailing list - Adam H. Behle
  Wed, 2 Feb 2005 23:44:51 -0500
  ...My 87 Westy with 156K miles has the evil cold start bucking and stalling problem as well. It feels like it is running on...
• Re: Bad Valve Issues/Question, Opinion sought.
  Historical mailing list - Jeff Strickrott
  Thu, 26 Sep 2002 15:47:37 -0400
  ...Cold start manually removed and tested. When I get the car back this evening I will redo all the test, including compression myself to...
• Re: New owner of 91 Westy -- sticky valve
  Historical mailing list - Bob Stevens
  Thu, 5 Sep 2002 09:47:20 -0600
  ...Worked very well for me and the cold morning startups, with the engine turning over slowly, also stopped. Syn oil is "very slippery" and...
• Re: loud engine noise/water in the tail pipe
  Historical mailing list - Benny boy
  Thu, 25 Oct 2007 11:08:20 -0400
  ...Water in the tail pipe is normal at cold start, typical Vanagon stuff. Ben
• Warm Idle Racing
  Historical mailing list - Robert J Ardo
  Tue, 14 Oct 1997 00:40:37 -0700
  ...My '87 starts and runs fine when cold. While cold, the idle takes a second or two to settledown from 1500 to around 950...
• Re: Idle stabilizer
  Historical mailing list - Johan Nyberg
  Sun, 11 Oct 1998 11:55:06 +0200
  ...My standard for idling "well" is that it starts happily cold or warm. That idle is a bit higher when cold than warm. With...
• Re: COLD START PROBLEM!!!!!!!!! anyone!!!!!
  Historical mailing list - Benoit
  Mon, 1 Aug 2005 22:56:11 -0400
  ...valve is open so i should have a "cold >> >>start"... >> >> >> >>I feel that i have a fuel pressure ploblem... but am not sure... fuel...
• getting started, TDC, hyd. lifters
  Historical mailing list - Eric Baden
  Wed, 13 Dec 1995 07:32:29 -0500 (EST)
  ...The engine is installed in the vanagon and I'm working solo so I can't turn the motor and observe the valve train...
• Re: Automatic Transmission sometimes has to wake up...
  Historical mailing list - Chuck Kuecker
  Tue, 19 Apr 2005 19:31:33 -0500
  ...But... > >Sometimes, on cold start, when I put it into drive, >nothing happens. At first I revved to get a response, >but soon realized...
• Re: Arduino and Vanagons
  Historical mailing list - Dennis Haynes
  Sat, 16 Nov 2013 09:15:52 -0500
  ...idle air valve when: > --the engine is cold, the starter is engaged, and the coil is shorted > --the engine is cold & running > --the engine...
• 91 Carat - Auto Tranny - 2.1L WBX - RPM Hunting
  Historical mailing list - John Rodgers
  Thu, 21 Oct 2010 14:49:34 -0500
  ...Today, I disconnected the O2 sensor, started the engine. On a cold start, engine started rough, but did run, but it would hunt wildly...
• Re: Starting issue - low idle and wants to stall
  Historical mailing list - Dennis Haynes
  Tue, 5 Jul 2011 00:45:16 -0400
  ...For some reason the idle speed valve is not boosting the idle or giving a cold start fast idle. Probably also means no power...
• Re: It continues - Engine RPM Hunting 200-500 rpm
  Historical mailing list - Dennis Haynes
  Mon, 11 Oct 2010 00:23:40 -0400
  ...The O2 sensor is out of the picture when first starting or on a cold engine. Engine condition. Bad intake valves are worse than...
• Re: Valve adjustment suggestions and a question
  Historical mailing list - neil N
  Tue, 21 Aug 2007 20:49:15 -0700
  ...all except the soft > > lifter, (engine cold) put noisy lifter back to it's original setting, > > then started engine and waited for lifter to...