# Diagnosis help **URL:** \ **Category:** NYSpeed Automotive\ **Created:** [December 30, 2006, 6:08pm UTC](https://forums.speedlife.net/t/diagnosis-help/22348 "2006-12-30T18:08:29Z")\ **Posts on this page:** 1\ **Showing post:** 8
**Author:** ![The\_Russian](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/the_russian/32/7414_2.png) [@The\_Russian](https://forums.speedlife.net/u/The_Russian)\ **Post date:** [December 31, 2006, 8:01am UTC](https://forums.speedlife.net/t/diagnosis-help/22348/8 "2006-12-31T08:01:03Z")
Grinding noise im guessing is the wheel bearing, or where the half shaft goes in the bearing. Had that happen on my bonnie. would only grind at higher speeds when the bearing couldnt keep up anymore. needed a new bearing and half shaft. On the jackstands bit. Is the car surging ever, the engine. Check the MAF EGR and O2 sensor. Will cause the car to run really rich in idle and only way it corrects is by accelerating. My Tempo would do it in drive on the road. Seems you MAY have a similar issue --- _[View the full topic](https://forums.speedlife.net/t/diagnosis-help/22348)._