It is possible the thermostat is stuck open.
As the vehicle sits idling the driveshaft is not rotating.
Yes, when idling and driving.
Probably wheel bearings or wheels are unbalanced
It depends on how long you are idling, or how fast you are going. If you know you are going to be idling for a long time, it's best just to put your car in park.
Car emissions can be reduced by reducing idling time and by driving at a moderate highway speed when possible. Driving too fast and idling are both wasteful in terms of fuel, and increase the vehicle's emissions.
It's a 1997 Tahoe
You need to check the operation of the radiator fan.
2001 sienna stall while just stop while driving. electric just cut out power, then switch can operated but idling roughling
When a vehicle is idling, the engine may not produce enough heat to warm the coolant effectively, leading to cold air from the heater. In contrast, while driving, the engine works harder and generates more heat, allowing the heater to blow warm air. The engine temperature can rise while idling due to reduced airflow through the radiator and less coolant circulation, while driving increases airflow and coolant flow, helping to cool the engine.
spark plug gap Can also be a vacuum leak.
Thermostat is stuck open Thermostat is stuck open
It is the idling sensor on top of the intake