Guys, Just replaced the timing chains in my 3.8 were streched throwing timing codes. Anyway back togeather and now my oil light comes on at idle. The slightest revs and oil light goes out. New oil and filter. Never had this problem before. I am certain oil pump gear and chain is all correct. any ideas. Fram oil filter. 5-20 oil. oil level good. no real noises engine quiet.