2000 3.0 v6 2x4
After replacing rotor and using re using bearing n new rear seal and putting all back together. Was driving around 55 and grease came out. Grease cap was inside wheel cover loose and looked black like hot. Any suggestions as to why please help

 

Im going to guess that this is a front bearing.. If grease popped the cap out, theres a lot of expansion going on. What kind of grease did you use? It should be a high-temp wheel bearing grease, the stuff thats for your driveshafts and stuff might not work.