Stumbles, dies off, low power, poor fuel economy, check engine light
A bad EGR valve in a 2000 Saturn can have several symptoms. The EGR valve can cause misfires, the valve can cause vacuum leak style problems. There could also be an engine knock.
Yes, the EGR valve, or port EGR
Would this cause the car not to start If the EGR VALVE is bad
No, the catalytic converter is downstream from the EGR valve so it has no effect on it.
Even a good EGR valve may cause an engine to stall in hot weather.
It can.
yes
A bad EGR valve should not cause the engine to not start. There is most likely another problem that is causing the engine to not start.
Yes it can if it is bad you will see the cel
Yes. Carbon deposits in the EGR valve can cause it to stick open a bit and cause a rough idle. If it is bad enough, the engine will stall out when you slow to a stop.
The most common cause of that is a bad EGR Valve.
There are many things that can cause a 2000 Blazer to have hesitation problems. Some causes could be bad plugs and wires, fuel filter, or the EGR valve.