What would happen if you disconnected the idle control valve on your truck?

Disconnecting the idle control valve on your truck would likely cause the engine to idle erratically or stall, as the valve is responsible for regulating the air-fuel mixture at idle. This could lead to poor engine performance, increased emissions, and difficulty starting the vehicle. Additionally, the check engine light may illuminate, indicating a fault in the system. It's advisable to address any issues with the idle control valve rather than disconnecting it.