Engine Ticking at idle

I get an ticking noise from the engine when it is first started (cold). When the engine is warm it's gone, it's like it's low on oil. 99 Caravan, 3.0L.

That noise is common in the 3.0L. I wouldn't worry over this. it's a quirk of the engine.

I believe the noise comes from the valve lash adjusters. They control how much slack is in the valve rocker. In engines of the old days, that slack was adjusted with a feeler gauge and lock down nut. Today's engines use a lash adjuster (non adjustable) which is like a rubber hydrolic shock absorber. The ticking noise occurs in worn adjusters because they fail to retain oil and fail to
act as a shock absorber for the valve rocker.
When newly pumped oil reaches up to them, the ticking stops.

Thank You very much for your qiuck reply.