This has just started happening a few days ago... tried looking up on the forums if there has been anything similar but no luck. well here is the problem. when i accelerate and let off the pedal quickly ill here a quick grind. it seems to be doing that on every gear. but the noise seems to be coming from under the hood by my turbo. so im unsure if its my turbo going bad or tranny problem. any ideas would be helpful. thank you.