Are the plugs correct? and gapped correct? The list is extensive, take it to a shop worth their salt in troubleshooting to check it out. Knowing what the data stream says will give a clue as to what is happening. Is the check engine light on? A bad MAF sensor can do this, egr system failure, weak fuel pump, plugged fuel filter, leaking intake gasket-the list goes on. The $75.00 or so to troubleshoot will save a lot of time, greif and $. BECLEAR.
2004 chevy cavalier is idling to high
You can pour it in at any time, but the level is checked with it idling in neutral.You can pour it in at any time, but the level is checked with it idling in neutral.
the only thing i can think of is a crack in the intake manifold. my cavalier's manifold cracked and it was idling at like 2500RPM as opposed to the normal 1000-1500, also i had trouble with my brakes and misc other problems because of the crack. if it is just idling too high and there are no other problems i would guess that it is just compensating for the cold. if there are other little issues, i would look into having your intake manifold checked out. gotta take care of your baby because cavaliers are such great cars...... :p
timing off
Have your sensors checked.
did you use the right anti-freeze or you may have a bad fan/fan switch
Trans fluid is always checked with car level and idling while warmed up.
Try adjusting the idling speed - sounds like idling speed is too low so when you take your foot off the gas it can't idle (Tick over)
The engine should be hot and idling in park.
Um that's not right, that's a red flag. Get it checked out.
The automatic transmission fluid is checked idling in neutral.
Possibly a defective torque converter lock-up solenoid. Disconnect the solenoid and see if that cures the problem. If so replace the solenoid.