Ticking sound 1998 Camry

Noisy wheel bearing ?

Sheet metal heat shield over exhaust manifold expanding? Try listening with hood up to prove or eliminate this as a cause.

Noise when the car stopped? Like others said, it could be a loose heat shield.

Noise when moving only? Then check the drive shaft and wheel bearing. (A worn inner joint can make a noise very similar to a worn bearing. So you need to verify which.)

The ticking noise only happens when rolling and then only after it has gotten warm. It is heard easily when driving with window down and cars or buildings close by. I am concerned its drive train but was hoping for another, less expensive solution. BTW: I have 156K on the Camry.

Try pressing the brake pedal lightly,..if it stops, try useing the handbrake. If it doesnt stop, it could be a bit of brake-pad clicking in its mounts due to rotor run-out, or the rears if handbrake stops it. Otherwise, check the CV boots are intact. Worn CVs can exhibit a click as the steel balls move in their track. Uusually when they are worn.

Otherwise, examine the tire treads for shale in tread etc.

Jason