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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 1+: 60 results shown for Coolant thermostat.

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

  • Re: gerry's thermostat and translation pblm
    Historical mailing list
    Tue, 22 Nov 94 15:20:46 EST
    ...The thermostat Stated simply, the thermostat determines whether the coolant in the radiator at the front of the vehicle should be cooled off or...
  • Re: gerry's thermostat problem .... now in english!
    Historical mailing list - Joachim Beek
    Tue, 22 Nov 94 11:37:00 CST
    ...Removing the thermostat Thermostat removal is identical for gasoline and diesel engines: * let coolant cool down, otherwise danger of burning yourself * partially drain coolant...
  • Re: Drain Coolant to replace Thermostat (2.1 L)???
    Historical mailing list - Dan R. Hall
    Wed, 23 Jul 2003 22:11:40 -0500
    ...Then I opened up the thermostat housing and replaced thermostat. Coolant loss was minimal using this procedure, I'd guess less than a cup...
  • Re: Coolant flow question
    Historical mailing list - Mike Collum
    Mon, 23 May 2005 00:59:28 -0400
    ...Mike Jeff Oxroad wrote: > On the 1.9 it's basically before the thermostat. Meaning coolant will flow > at whatever temperature it's at...
  • Re: Overheating while bleeding?
    Historical mailing list - John Rodgers
    Tue, 26 Aug 2003 09:20:41 -0500
    ...Thermostats will fail closed - as shows as engine overheat, event when everything really is ok, except that coolant is not cooling because it is...
  • Changing thermostat woes
    Historical mailing list - David M
    Sun, 25 Nov 2007 16:35:05 -0800
    ...Flashing light went off but coolant not falling in expansion tank and no coolant coming out of thermostat bleeder. Decided to call it a...
  • Coolant pump specs
    Historical mailing list - John
    Sun, 4 Feb 2001 23:45:26 -0500
    ...All coolant pumps overproduce and it's the thermostat's job to limit the cooling ability by blending(recirulating) hot coolant with the cooled...
  • Coolant Thermostat Question
    Historical mailing list - The Blackhams
    Wed, 20 Dec 2000 12:36:09 -0700
    ...I'm wondering if it is being caused by a bad coolant system thermostat. Its acting like my 77 bus did when the cold...
  • Re: Drain Coolant to replace Thermostat (2.1 L)???
    Historical mailing list - All of Us
    Wed, 23 Jul 2003 20:14:58 -0500
    ...Drain Coolant to replace Thermostat (2.1 L)??? > Esteemed List, > > My Haynes manual sez: > 1) disconnect battery > 2) drain coolant > 3) disconnect the wiring...
  • Re: Bleeding the front radiator
    Historical mailing list - Allan Bagley
    Tue, 12 Mar 2002 08:55:21 -0800
    Further on closed thermostat coolant flow: All automotive coolant systems provide some path for limited coolant flow when the thermostat is closed. Many many...
  • Re: Thermostats especially in colder weather
    Historical mailing list - Dan N
    Thu, 4 Jan 2018 12:27:03 -0800
    ...https://www.amazon.com/Mahle-80D-Engine-Coolant-Thermostat/dp/B00WCCNX9Y/ref=sr_1_fkmr0_2?s=automotive&ie=UTF8&qid=1515097504&sr=1...
  • Calorstat Thermostat? (Jetta swap)
    Historical mailing list - Neil N
    Tue, 29 Dec 2015 22:19:17 -0800
    ...I'm ashamed to admit this, but this my first coolant change since doing this swap. I mention that as installing the thermostat on...
  • How hot is your coolant?
    Historical mailing list - John W. Parkins
    Tue, 13 Sep 2005 10:39:35 -0400
    Hello All, I've been trying to determine the normal operating temperature of my coolant in my '87 Westy. The thermostat "starts" to open...
  • Drain Coolant to replace Thermostat (2.1 L)???
    Historical mailing list - John Meeks
    Wed, 23 Jul 2003 20:33:03 -0400
    ...disassembly Can this be correct? The thermostat seems higher in relation to most of the rest if the coolant paths. Am I in for...
  • Re: Coolant flow question
    Historical mailing list - Jeff Oxroad
    Mon, 23 May 2005 00:41:06 EDT
    On the 1.9 it's basically before the thermostat. Meaning coolant will flow at whatever temperature it's at in the engine to...
  • 2.1L Vanagon Cooling - Philosophical Design question
    Historical mailing list - Tabe Johnson
    Thu, 5 Oct 2006 17:12:33 -0400
    ...The temp sensor is always measuring the temperature of the hot coolant in the bottom of the thermostat manifold. The thermostat is mixing the...
  • Re: bleeding coolant system?
    Historical mailing list - Don in North Carolina
    Fri, 15 Jul 2005 23:30:35 -0400
    ...John, When you turn the bleed knob on the top of the thermostat housing, coolant (and any air that is trapped) flows up the...
  • Pumping OUT Coolant
    Historical mailing list - Robie Pierce
    Wed, 6 Sep 2000 10:30:39 -0400
    ...No coolant running out. No gurgling..... Thermostat bad?? New one 3500 miles ago. Hose on down side of thermostat ?
  • Re: coolant gauge were is normal
    Historical mailing list - m Burha
    Fri, 24 Aug 2001 21:39:45 -0400
    In regards to bleeding the coolant, I've read the Bentley manual and I opened the valve on thermostat. I didn't open the...
  • Re: Question: bleeder on thermostat housing
    Historical mailing list - Darrell Boehler
    Wed, 8 Jul 1998 07:34:46 -0500
    ...When I replaced the coolant hoses on my 86 I found opening the thermostat bleeder valve allows air and or coolant from the thermostat...
  • Thermostat Questions
    Historical mailing list - Chad
    Thu, 29 Mar 2001 14:24:49 -0400
    ...Do you have to drain the coolant to replace the thermostat??? 2. What degree rating thermostat is best to use for a 1.9L???
  • overheating
    Historical mailing list - John McLean
    Sun, 21 Jan 2001 15:49:24 -0800
    ...my investigation shows me that 1) the heater cores both get coolant independant of the thermostat and 2) my thermostat is stuck and I...
  • Re: " Fail Safe " Type Coolant Thermostat
    Historical mailing list - Dan N
    Sat, 23 Dec 2017 13:41:03 -0800
    what's a "fail safe" thermostat?
  • Re: Changing thermostat woes
    Historical mailing list - Dennis Haynes
    Mon, 26 Nov 2007 08:35:18 -0500
    ...Flashing light went off but coolant not falling in expansion tank and no coolant coming out of thermostat bleeder. Decided to call it a...
  • Re: Oil slick in expansion tank
    Historical mailing list - John
    Tue, 29 Jun 1999 23:13:20 -0400
    ...If there is no thermostat the coolant most likely will recirculate and avoid the radiator all together ! How long was this engine operated without...
  • Thermostat install Question
    Historical mailing list - Chad G
    Tue, 31 Jul 2001 21:47:34 -0400
    will I have to empty all my coolant in order to replace the thermostat in a 1.9L engine??? is changing the thermostat a...
  • Re: 80 d Thermostat rocks/ and so does David Beierl!
    Historical mailing list - kevin obrien
    Tue, 24 Sep 2002 10:29:51 -0700
    ...THANKS for a clear, concise explaination of the coolant system. Coolant systems and thermostats can be pretty confusing...but your email clarifies it nicely...
  • Oil Cooler Coolant hoses
    Historical mailing list - Hans Brouwer
    Sun, 12 Aug 2001 22:46:01 -0400
    ...coolant hose and finally attached to the thermostat housing, replace it with one long coolant hose from the oil cooler to the thermostat housing...
  • Re: overheating
    Historical mailing list - Karl Wolz
    Sun, 21 Jan 2001 19:51:02 -0700
    ...my investigation shows me that 1) the heater cores both get > coolant independant of the thermostat and 2) my thermostat is stuck and > I...
  • Re: Coolant top up
    Historical mailing list - OlRivrRat
    Fri, 6 Sep 2013 22:54:07 -0600
    ...Still NO > coolant came out of thermostat bleed valve. > > David (1987 Wolfsburg) > > > > ________________________________
  • Re: Pumping OUT Coolant
    Historical mailing list - Bill Davidson
    Wed, 6 Sep 2000 08:17:43 -0700
    ...No coolant > running out. No gurgling..... Thermostat bad?? New one 3500 miles ago. > Hose on down side of thermostat ? How the heck could we...
  • Re: Water temp increase after changing hoses, thermostat, and plastic parts
    Historical mailing list - Dan N
    Thu, 1 Oct 2015 10:05:05 -0700
    ...I change the level sensor and the coolant temp sensor (at thermostat housing) now it jumps a hair higher (about 1/8")
  • Bleeding the coolant question
    Historical mailing list - digest Herbie Dave
    Wed, 2 Oct 2002 21:03:19 EDT
    ...the coolant system once you have opened it up. You bleed two areas, right? The radiator and the fitting over the thermostat (take hose...
  • Re: Cooling System Pressure Test Protocol
    Historical mailing list - John Rodgers
    Sun, 24 Mar 2002 22:34:59 -0600
    ...Peter, I believe that all thermostats allow for a small amount of coolant to pass through even though the engine is cold and it...
  • Re: Drain Coolant to replace Thermostat (2.1 L)???
    Historical mailing list - Dennis Haynes
    Wed, 23 Jul 2003 22:57:23 -0400
    ...Drain Coolant to replace Thermostat (2.1 L)??? Esteemed List, My Haynes manual sez: 1) disconnect battery 2) drain coolant 3) disconnect the wiring...
  • Re: Thermostats - 87 degree vs 80 degree
    Historical mailing list - Dave Mcneely
    Mon, 10 Oct 2011 22:40:28 -0500
    ...mcneely > > Mark > > > Dave Mcneely wrote: > > > > > > What the thermostat does physically is remain closed (no coolant flow) when the temperature is cooler than the set...
  • Re: Thermostats - 87 degree vs 80 degree
    Historical mailing list - mark drillock
    Mon, 10 Oct 2011 16:03:00 -0700
    ...Mark Dave Mcneely wrote: > > > What the thermostat does physically is remain closed (no coolant flow) when the temperature is cooler than the set temperature...
  • Overheating while bleeding?
    Historical mailing list - Keith Adams
    Tue, 26 Aug 2003 00:11:54 -0400
    ...Anyways, before getting any coolant out of the thermostat bleed screw or radiator bleed screw, my coolant boils over! What a mess! Thoughts? Bad...
  • Re: Overheating - 86 Syncro
    Historical mailing list
    Wed, 19 Feb 1997 19:14:17 -0800
    ...The heaters are not on the coolant "circuit" controlled by the the thermostat. They get heated coolant all the time. >| 5.) Checked the fuse...
  • Re: Best flushing method - 2.1,and maintenance questions.
    Historical mailing list - TJ Hannink
    Tue, 25 Mar 2003 10:19:10 -0800
    ...You will need to remove the thermostat in order to flush the radiator and the large coolant hoses. Then you run the risk of...
  • Re: Coolant Thermostat Question
    Historical mailing list - The Blackhams
    Thu, 21 Dec 2000 19:04:52 -0700
    ...I'm wondering if it is >being >> caused by a bad coolant system thermostat. Its acting like my 77 >bus did >> when the cold...
  • > thermostat housing question...
    Historical mailing list - Tony Demille
    Mon, 13 Aug 2001 14:32:41 -0600
    ...a GL? i recently put an '86 syncro engine in my '90 GL and am finding that the elbow coolant hose from the thermostat...
  • Re: No heat at stoplights.
    Historical mailing list - Dennis Haynes
    Sun, 10 Jan 2010 01:11:38 -0500
    Actually maximum circulation to the heating loop is with the thermostat closed. As the thermostat opens the circulating coolant mixes with the coolant in...
  • Re: Thermostat with a hole?
    Historical mailing list - Dan N
    Fri, 23 Apr 2021 14:45:45 -0700
    ...I know of a shop > that still drills Vanagon thermostats, their stance is that the hole helps > pre-warm the cold coolant on the...
  • Re: Water Wetter
    Historical mailing list - Bill Davidson
    Mon, 14 Aug 2000 11:10:15 -0700
    > Adding a wetting agent to your coolant will NOT change the operating > temperature of your engine, that is controlled by the thermostat(s). This...
  • Re: coolant leak after long idle
    Historical mailing list - Mark Drillock
    Mon, 11 Jun 2007 09:00:51 -0700
    ...The behavior of the thermostat as regards coolant pressure in the radiator is well known and not a matter of belief or faith. The...
  • Re: Coolant Rising Mystery
    Historical mailing list - John Rodgers
    Sun, 24 Mar 2002 13:29:39 -0600
    Peter Krogh wrote: > my rising coolant mystery. Peter, I don't mean to be picky here, but my understanding of the cooling system is...
  • bleeding a van - coolant
    Historical mailing list - mike miller
    Fri, 12 Oct 2001 11:15:52 -0700
    ...Am I going to toast the engine before that thermostat opens and lets in coolant? And if so, how do I get coolant in...
  • engine temps
    Historical mailing list - Pat Dooley
    Sun, 28 Mar 1999 00:06:43 -0500
    The current thermostat discussion makes me wonder exactly how hot the coolant gets in a fully warmed vanagon engine. The thermostat may open at...
  • Where's the Thermostat?
    Historical mailing list - Kate McLaughlin
    Sun, 28 Nov 1999 10:55:40 -0500
    ...there is a coolant hose running directly to the thermostat from the coolant tank. Well the book shows the coolant lines running over everything...
  • Re: Replacing thermostat on 1.9L
    Historical mailing list - Dave Caston
    Fri, 29 Sep 2000 11:02:01 -0400
    ...On January,2000 @ 240K-New water pump, new metal coolant line that runs from right head to pump (behind pulley), new thermostat, coolant recovery...
  • Re: 80 d Thermostat rocks/ brings up question
    Historical mailing list - David Beierl
    Tue, 24 Sep 2002 13:04:47 -0400
    At 01:02 PM 9/24/2002, Marla Stelk wrote: >so what does the thermostat affect? The water pump circulates coolant in three main...
  • Re: Thermostats - 87 degree vs. 80 degree
    Historical mailing list - Dennis Haynes
    Mon, 10 Oct 2011 23:13:01 -0400
    ...Not fully open until 105 C degrees. | |Mark | | |Dave Mcneely wrote: |> |> |> What the thermostat does physically is remain closed (no |coolant flow) when the...
  • Re: running hot....any ideas? UPDATE
    Historical mailing list - Sam Walters
    Tue, 7 Feb 2006 00:58:38 -0500
    ...Someone stated earlier that the heater hoses got hot coolant regardless of whether the thermostat was open or closed, and that the thermostat only...
  • Re: Thermostat problem??
    Historical mailing list - Jim Cain
    Wed, 29 Mar 2000 10:23:27 -0500
    >You are probably right about the faulty thermostat. I have had so many >thermostat failures that I replace mine every 18 months or so...
  • is High temp all in the thermostat ?
    Historical mailing list - Brian Honan
    Mon, 26 Mar 2001 23:23:40 -0500
    Hi List, I am posting again with my coolant woes. My new Thermostat is an 87 deg. Not sure what the old one was...
  • Coolant sensor O ring
    Historical mailing list - Michael Townsend
    Wed, 27 Jan 1999 11:37:28 -0500
    ...the thermostat housing is lower than the radiator, and I don't want to get a coolant shower. Will the closed thermostat prevent the...
  • Re: Coolant hoses most likely to fail?
    Historical mailing list - David Beierl
    Fri, 22 May 2009 15:17:10 -0400
    ...the hose from the thermostat housing across to the coolant distributor burst open about 7-8 inches from the thermostat. No chafing or other...
  • Re: bleeding system
    Historical mailing list - John Rodgers
    Fri, 8 Sep 2000 15:06:23 -0500
    ...With the pressure cap off the coolant tank, run it until it warms up and thermostat opens. Run a little longer, then fill the...
  • Re: Thermostat with a hole?
    Historical mailing list - Dan N
    Sat, 24 Apr 2021 11:04:34 -0700
    ...I know of a shop > that still drills Vanagon thermostats, their stance is that the hole helps > pre-warm the cold coolant on the...