[wonthewest]

Lexus 430SC. Has only 33k miles, but is a 2003. Should I change timing belt?

[Fr_Chuck]

Is the belt worn, looking bad, dry rot ? Cracked ?

Is there a timing problem, is engine not running right ?

[ma0641]

Lot of work to change and $$$. Typically mileage based not time.Leave it alone unless it shows signs of wear or cracking.

[wonthewest]

Thanks guys for the help.

[TxGreaseMonkey]

Yes, they normally should be changed every 90,000 miles or 7 years, whichever comes first.