If you mean drain valve, it is on the left side tank at the very bottom. It is on the back side of tank and drains through the radiator lower mount bracket.
No adjustment. If there is valve clatter, valve train parts are worn.
Whenever it fails.
There is no adjustment.
The 2003 Chevrolet Malibu PCM valve can be found on the firewall in the engine compartment. The PCM valve will be on the passenger side of the firewall.
It is just below the lower radiator hose.
In front of the radiator between the grill and the radiator
its behind the transmission side cover
no the egr valve has a big effect on the engine,it is controlled by the pcm.
A 2004 Chevy Avalanche does not have a radiator drain. The front of the vehicle needs to be raised, then the bottom radiator hose disconnected to drain into a pan.
If it has one, it will be located on the fuel rail.
it goes to the purge valve in the back of your motor.
Is it inside the engine it self on top