Where is the ac filter located in a 98 Chevy Cavalier?
Some GM vehicles have cabin air filters in the area in front of the firewall, just under the hood.
I don't know if the 98 is the same as my 97 but I assume it is. The fuel filter is mounted to the rear cross member. Lay under the rear and you will see it. Its attaches with quick connects. If you break them removing them (you shouldn't), a new quick connect rebuild line is at autozone for 16 bucks
How can you find out what other Chevy Cavalier model years engine will be an exact fit for a 1998 Cavalier Z24 2.4 L4 DOHC engine with a 5 speed?
Not sure what size engine or trans you have, but on my 98 2.4 cavalier the solenoid is actually located inside the transmission. You can access it by removing the trans inspection cover on the drivers side of the transmission. If this is the case with your car you should still be able to research the circular plug that attaches all the wiring to the trans and figure out which two wires to disconnect.