Originally Posted by Tinkerbell0527
Just starting out in here so I don't know where to post it. I have a 2000 Jeep Cherokee Sport 4.0 Straight 6. Thanks for your help.
Well, you haven't owned this one for 30 years. How long have you owned your 2000 Cherokee?
Major things to watch for...
1. Do not use a FRAM oil filter. Mopar, K&N, Mobil 1 or WIX are better choices. A malfunctioning anti-drain back valve will cause dry starts... But I didn't read you to say if was at first start or a persistent clatter. You also need to use oil with high ZDDP (zinc) content or you can get premature cam wear.
2. Head problems on the 2000-2001 model years. I don't think this is your problem, but you should do a Web search and maintain a close watch regarding the I-6 head issue.