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
>
>