Your 1998 sunfire donot have a chip in the key so most likely it is your ignition.To resrt the system turn the key to run position until security light goes out

It is in behind the furthest out upper pully. Remove belt.Then the four 10mm bolts in the pully may have to tap pully to break it free.Then remove the five 8mm bolts holding the pump.Tap the corner to break it free.Clean mounting surface and replace.

Yes your engine do indeed have a TIMING BELT .First you jack the engine ,then remove the right(passenger side) engine mount.Remove the a/c pump and bracket.Remove serpentine belt BEFORE taking of ac parts.remove p/s pump ,then the crank pully Make shure you have the right timing markes'This is a good time to check your water … Read more