if its just cuz your radiator is getting too much cold air, that is good, just don't run the car hard or else stuff will lock up probably.... here and after you've been driving for awhile feel your radiator cap and top of radiator, is it cold? is it hot? Cold = too much cold air, Hot = bad thermo....but don't feel it after its been in garage cuz it'll be hot if its in an enclosed area so try it after your gauge goes DOWN.