To minimize downtime we offer our FICM half shell. 99% of the time this is what fails. It takes about 10 minutes to change out the halves requiring only a torx #10 and #20. Please check to see if you have a 7 screw FICM(2003), or a 4 screw, mid September 2003 to 2010. When you return your old FICM half shell you will be reimbursed your $100 deposit.