if you really have to ask that question, put the tools down, step away from the vehicle. and take it to a professional. seriously.
on the motor
Your Chevrolet Cavalier 97 might stall when going downhill because it has a bad fuel filter. It could also be the spark plugs misfiring.
there are four spark plugs.
under what appears to be the valve cover on top of the engine
Not really. If you remove the center cover on the top of the engine you'll see that there are spark plug "boots" that fit down on the spark plugs.
Depending on the plug, it is .050" for most plugs, except for the Denso premium plugs come pregaped at .035"Sparkplugs.com
8 spark plugs
Depends on what is done. Usually this includes oil, spark plugs, and air filter. It's about $30 for oil, $15 for spark plugs, and $10 for an air filter. This is based on doing it yourself.
The coil pack, on a 1996 Chevrolet Cavalier, is located on the top of the engine. The coil pack is near the electronic spark distributor.
they are located in the engine block. You'll need an extension to the wrench in order to get them out.
it is located almost under the motor between the firewall and the motor youll see 3 coils on a plate.
.060