I2001 catera. 2 common failures were a wiring issue & idler / tensioner pully

What is your question?

We're there any repair solutions that can prevent the tensioner or idler pulley from failure? For instance, replacing with stronger hardened heat treat steel bolts and perhaps a stronger OEM or aftermarket pullys and avoid this catastrophic engine failure possibility? Also, any solutions to the wiring problems associated with this year?