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
2004 chevy cavalier is idling to high
Radiator could be plugged or restricted
how do you replace thermostat for 2004 cavalier
timing off
It begins at the compressor outlet and ends at the inlet of the Fixed Orifice Tube.
The 2004 Chevy Cavalier didn't come with a carburetor, they were all fuel injected.
Cavalier's do not have cabin air filters
Does Chevy cavalier have front shocks
yea, trade it in for a 2004
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)
where is the hornrelayona2004chevroletcavilier
Check the fan control