Update, on the 1997 Park Avenue ticking sound from the engine compartment.

What is your question?

Update: Pushrod I have an update on my 1997 Park Avenue, engine compartment ticking sound. My mechanic could not make a definitive diagnose, so he asked the mechanic next store that works on transmissions and he said it could be a hairline crack in the fly wheel, is that possible? Please let me know what your thinking. I had an estimate done over the phone and the price is $66.18 + tax for the part for a grand total of $720.18 with labor. Please help me rule this job out?