I just bought a 2001 Durango and although I really like the thing, on cold starts for the first 5 seconds or so I get a noise that sounds like loose bearings. After several cold starts I have determined that the noise is coming from the fuel injectors/rail and at idle the injectors are noisy.

The durango has 127,000 and is in very nice shape overall. Does anyone out there have some info they could let me in on about quieting these injectors down, and why is it the loudest on cold starts? Any help will be greatly appreciated.