clutch pedal soft and clutch makes chirping noise when pedal is pushed in

Sounds like you may be facing a clutch job. It could be the pressure plate springs are worn out or the clutch disc it too thin. Ask a mechanic to check the clutch for you. It's easy for a mechanic to tell when a clutch is failing. Here's a directory link for you: http://repairpal.com/isuzu-repair-in-midlothian-virginia