Auto Trans.

Hi, my name is Devin. I am an auto repair expert with the Car Genius team here at RepairPal. I'm sorry to hear you're having trouble with your vehicle. The noise you're describing when putting your Grand Cherokee in gear, similar to "shaking nuts and bolts in a coffee can," could indicate a few issues with the automatic transmission. It might indicate worn or damaged transmission components, such as the torque converter, mounts, or even internal gears. If there's excessive play or wear in the transmission or its mounts, it could create a rattling sound when engaging gears. It's also worth checking the transmission fluid level and condition; low or dirty fluid can lead to erratic operation and noises. I recommend having a qualified mechanic inspect the vehicle as soon as possible to diagnose the problem accurately and prevent further damage. If you need more advice, have any other questions about your vehicle, or would like to get connected to a RepairPal Certified shop near you, we have you covered. Give us a call at 877-913-1554, and we will happily help you out!