Hey guys, I just bought a 2000 Durango with the 4.7. I'm pretty much a old wrangler guy and kind of new to Dodge but got to say so far I'm loving it. The Durango has 209000 miles on it and seems to run great except for when I first start it up. I get a lifter chatter for about 3 minutes or so then it fades away. I figured that was normal for the miles but then after I drive it a little bit and stop at a light or a stop sign or for whatever reason I get a knocking sound. Its an odd knocking, different than lifter chatter, it kind of sounds like someone is taking the back of their knuckle and knocking on the firewall or a piece of plastic under the dash. Its not real loud and the fan seems to be running all of the time. Thanks for your help.