2000 alero won't start. turns over and fires but wont start

Pull a plug wire , set the end close to the engine, crank it and watch for spark. No spark could be the cranks sensor, wires, ignition module , fuse, or PCM. Have the codes read. Could be the fuel pump too. I have had them die shortly after installs.

Check that the cam shaft is turning as it may have broken a timing belt. Run fault codes to check for cam/crank position sensor problems.

Check fuse,could be starter.check battery connection, how old is battery.

Here's a video Dan Hooper suggested as a solution to your problem from YouTube:


Fixing A Car That Cranks But Doesn't Start Up

check battery and connection,fuel filter,spark plugs.

Are you saying the engine will not crank, or not start ?

my sister in-laws did the exact same thing. we replaced fuel filter pump and injectors. All the time it was old spark plugs. It kept cranking but wouldn't start. spent less than $20 on new spark plugs and it fired right up and is still running strong

These cars are notorious for failing antitheft systems. Your symptoms sounds very similar. Read thru this link and compare your problem to described one.

http://vatspasslockpasskeysecurityhelp.yolasite.com/

Crank sensor, or you may need to replace your coils!

does the car crank or not?? if it cranks and doesnt start it could be a couple things. could be fuel pump is bad or could be an ignition problem and ur not gettin spark in ur sparkplugs. if nothing happens when u turn ur key its more than likely that ur starter is bad. if this doesnt help im sorry but this is the only thing i can think of.