Must not be permanently stuck, van warms up and gauge goes to normal for a few minutes, then goes down. 

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> On Jan 21, 2022, at 12:19 PM, kenneth wilford <kenwilfy@gmail.com> wrote:
> 
> 
> Yes, the thermostat has "failed-safe".  As long as the coolant is full and you have no leaks, you should be fine.
> 
> Ken
> 
>> On Fri, Jan 21, 2022 at 3:18 PM Mark McCulley <markmcculley@gmail.com> wrote:
>> Thanks Ken. Not optimal, I know but is it safe to continue? Loaded up for 2 days camping with wife and dogs. 75 miles to destination, 40 to get home.
>> 
>> Sent from my iPhone
>> 
>>>> On Jan 21, 2022, at 12:11 PM, kenneth wilford <kenwilfy@gmail.com> wrote:
>>>> 
>>> 
>>> Sounds like thermostat has failed open.
>>> 
>>> Ken
>>> 
>>>> On Fri, Jan 21, 2022, 3:04 PM Mark McCulley <markmcculley@gmail.com> wrote:
>>>> This is a weird one.
>>>> 
>>>> Coolant gauge started going LOWER while driving at 65mph for 30 min. Pulled over to check it out, by then gauge was like it was a cold engine.
>>>> 
>>>> -GW expansion tank is full.
>>>> -One of the 2 hoses from engine to radiator is cold.
>>>> -Radiator is cold.
>>>> -No coolant leaking.
>>>> -Oil looks good
>>>> -I opened bleed screw on radiator and no air, just coolant.
>>>> 
>>>> After stopping 10 minutes I started van and temp came up to normal and radiator got hot. Then a get running a few minutes the temp gauge went back down.
>>>> 
>>>> I recently had the entire cooling system renewed, new everything.
>>>> 
>>>> I have the rear heater core out and both hoses are plugged 
>>>> 
>>>> Ideas?
>>>> 
>>>> -Mark
>>>> 87 Westy
>>>> 
>>>> 
>>>> 
>>>> Sent from my iPhone