Vanning.Com is a an authorized Amsoil Dealer | | | Re: New Thermostat high reading
[Re: JDouglas]
#745055 February 07th 2019 8:10 pm February 07th 2019 8:10 pm |
Joined: Sep 2005 Posts: 8,598 Georgia, USA CatFish
carpal tunnel
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carpal tunnel
Joined: Sep 2005
Posts: 8,598 Georgia, USA | That's scary!! Did you get all the air out? I have had to remove the heater hose connection at the rear of the intake manifold (while refilling) to get that last pesky air pocket out. How about the rear heat and hoses? Some of the high mounted systems could trap air. If it was really that warm your clutch fan should have been engaged and raising a fuss/very loud. IIRC the gauge sensor and the computer use separate sensors and the gauge sensor is in the left side head. But don't trust me on that.......
Last edited by CatFish; February 07th 2019 8:13 pm.
"Have you ever noticed that insisting that something is wrong is not nearly as powerful as suggesting that something is wrong?” | | | Re: New Thermostat high reading
[Re: JDouglas]
#745061 February 08th 2019 8:37 am February 08th 2019 8:37 am |
Joined: Feb 2019 Posts: 9 Lawrence, KS USA Marcela
stranger
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stranger
Joined: Feb 2019
Posts: 9 Lawrence, KS USA | Check that your radiator core tubes haven't ballooned, or you can still see through the radiator.
With air in the system you can see the gauge fluctuate quite a bit as air then water hit the gauge.
If your system lost a lot of coolant, then some goes through the system and hits a cylinder wall the resulting steam and expansion can rush through the system and balloon the radiator tubes. No air flow no cooling. (i've experienced this one)
After that check your fan belt and fan and make sure no air.
Also might do a pressure test on the system if you inadvertently ran it hot prior to the replacement and caused other issues.
Or you put the thermostat in facing the wrong direction.
Last edited by Marcela; February 08th 2019 9:02 am.
| | | Re: New Thermostat high reading
[Re: JDouglas]
#745064 February 08th 2019 11:31 am February 08th 2019 11:31 am |
Joined: Dec 2001 Posts: 3,203 Connecticut OVANNER
pooh-bah
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pooh-bah
Joined: Dec 2001
Posts: 3,203 Connecticut | Also what temp thermostat did you install? Because I run my van only in summer I run a low temp version. Air trap has happened to me in the past. ![[Linked Image]](https://i24.photobucket.com/albums/c17/oman88/Van_zps1qdnnsyi.jpg) 1973 Dodge Shorty B-100 Life should not be a journey to the grave with the intention of arriving safely in a well preserve body, but rather to skid in broadside in a cloud of smoke, thoroughly used up, totally worn out, and proclaiming "Wow What a Ride" Johnny O "O Vanners" of Connecticut! Since 1982 | | | Re: New Thermostat high reading
[Re: JDouglas]
#745065 February 08th 2019 11:41 am February 08th 2019 11:41 am |
Joined: Nov 2013 Posts: 1,079 West Texas Wedgy
old hand
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old hand
Joined: Nov 2013
Posts: 1,079 West Texas | Hey JD, Marcela, JO, Jason, and Catfish right on info input all good! "Tiny Bubbles,"  Sing it!! As an aside, I'd add look for bubbles in coolant flow, cap off, engine warm. A blown head gasket may pressurize the cooling system as well. This will force the coolant out of the cooling system. Absent a pressure test, A blown head gasket may be indicated by the presence of "Tiny Bubbles" in the coolant flow. Seen it, but IDTS in this case tho. My money's on trapped air. Those Tees that come in the Prestone FlushnFill kits are pretty handy for bleeding air out from the cooling system. Just install that puppy in an uppermost part of the heater hose, Presto! ne...  | | |
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