Posted By: Allison1
Odd thermostat problem - 12/08/22 01:42 AM
Car is a 2011 VW diesel.
I was driving through Arkansas and noticed the water tems were running 20-30 degrees most of the time and sometime fluctuated back up to 190 degrees that it normally runs.
I understood that to mean the thermostat may have stuck open. Sure enough, after stopping for fuel it ran up to 190 for awhile then it dropped to a couple notches below that. The thermostat is not easy on this vehicle and I was out of town, driving to Ill and Wisconsin so I thought I'd just put a band aid on it till I got home.
I blocked off the air to the radiator by putting plastic on the outside of the vehicle, taped closed only allowing a small hole on both sides to get to the radiator. Ok, check to see if the temps would climb and climb too high, right?
Here is the odd part. The car went up to 190 degrees and sat there just like the thermostat worked again.
I expected blocking the air to allow it to run warmer but can't explain why it started operaing normally again. Its now two days later and I've and started the car at least half a dozen times now.
I was driving through Arkansas and noticed the water tems were running 20-30 degrees most of the time and sometime fluctuated back up to 190 degrees that it normally runs.
I understood that to mean the thermostat may have stuck open. Sure enough, after stopping for fuel it ran up to 190 for awhile then it dropped to a couple notches below that. The thermostat is not easy on this vehicle and I was out of town, driving to Ill and Wisconsin so I thought I'd just put a band aid on it till I got home.
I blocked off the air to the radiator by putting plastic on the outside of the vehicle, taped closed only allowing a small hole on both sides to get to the radiator. Ok, check to see if the temps would climb and climb too high, right?
Here is the odd part. The car went up to 190 degrees and sat there just like the thermostat worked again.
I expected blocking the air to allow it to run warmer but can't explain why it started operaing normally again. Its now two days later and I've and started the car at least half a dozen times now.