I have a 2010 Toyota Tundra that has a full size snow plow on it for much of the Winter season. The truck and the plow work great, but I’ve noticed something odd. The truck has a built-in thermometer that measures the outside temperature. The sensor for it is mounted in the engine compartment, just behind the grill.
When the snow plow is in the up position (e.g. when I’m not plowing) and I am driving around town I notice that the outside temperature reported is much higher than it really is, like 30 degrees higher depending on how long I have been driving. I assume this is because the plow has very effectively blocked any airflow into the engine compartment. On one occasion the temperature registered nearly 100 degrees when it was actually 25 degrees outside. My question is can this do any damage to the engine (having no airflow)?
I know that people run this truck in places where ambient temperature can greatly exceed 100 F so part of me thinks this can’t be a problem. But if it is a potential problem is there a way around it other than taking the plow off unless I am actually plowing? It’s a pain putting on and taking off the plow so I tend to leave it on the truck just in case I need it.