A bad camshaft can cause your engine to idle high and overheat. A fuel injector pump that needs to be adjusted can also cause the same problems.
your electric radiator fan might not be working,check fan fuses
The idle arm may be off set. The idling is set extremely high according to the RPM's stated and need to be lowered.
possible radiator resrtiction
Until it overheats, runs out of oil or gas, or has a mechanical failure.
how to adjust idle on 2001 legacy
Why does my 2001 kia sportage idle rough?
Thermostat regulator is malfunctioning, water pump pulley could be bad, gas bubble in radiator hose.
On a 2001 Chevy Lumina with a V6 engine, the high-speed idle control is typically managed by the throttle body assembly. The idle air control (IAC) valve, located on the throttle body, regulates airflow and adjusts the engine's idle speed. You can find the throttle body on the intake manifold, near the front of the engine, connected to the air intake system.
A 2001 Camry may idle high due to several reasons, including a malfunctioning idle air control valve, a vacuum leak, or issues with the throttle body. Additionally, a dirty mass airflow sensor or a failing engine coolant temperature sensor could also cause irregular idle behavior. It's important to diagnose the specific issue to ensure proper engine function and performance.
The idle is computer controlled
check your fluids it is probably low on antifreeze and if it still does it change your thermostat that should fix the problem
The idle on a 2001 24 valve is computer controlled and is not adjustable.