Average life of PT Cruiser timing belt ?

I've heard anything over 90,000 you should consider changing it. Also it's recommended that you change the water pump and tensioner at the same time. Also find someone who really knows how to to this job as it's been said that it's not an easy job to everything lined up correctly.

I believe book spec is 104,000 but I've known a few owners that lost theirs at just over 100,000. I did ours at 96,000 to be safe.

It's an interference motor, so you're gambling a $750 job turning into a multi-thousand dollar job if it lets go.

Water pump an tensioner basically just add parts cost to the job.