The Alero should be a 5x115 bolt pattern.
1 hour to 1 1/2
The holes is called the bypass holes I had the same thing happened to my alero
I have a 2003, and I calculated it once on a road trip. it ranges from about 26-32mpg highway. Pretty good! But sucks in town. Stupid stoplights.
if it is like an 03 alero, you wont be able to start the car. to fix this problem you have to turn the key to the on position fand leave it on for 10 min. or until it stops flashing. then you should be able to turn off and then start car like normal.
top right rear of engine.
Check for vacuum leaks. It's the usual culprit.
a bad sensor. the alero is notorius for many bad sensors. not an expensive replacement though
you have to drop the gas tank first disconnect the fuel lines and loosen the ring that holds the module (keep an eye on how it come out be careful not to bend the float) THE LESS GAS IN THE TANK THE BETTER. took me about 1 hour
U might need new brakes.. did your brake light come on?
There is one intake valve for each cylinder. It is located in the top of the head. If you remove the valve cover, you can see the stem of the valves by peeking through the caps in the valve spring. If you want to replace a valve, it will be necessary to first remove the cylinder head.
The button just behind the stick shift on the center consel.