hey guys/girls

i got a new t-maxx yesterday broke it in fine and it was lightning quick..
tried to tune it a little bit to help with the fact i was burning fuel really quick..

after watching football (soccer) i took it back out and now it has a funny echo noise near the exhaust and a jingleing/clicking sound towards the back of it just below the engine, also it seems to have lost power and when accelerating it jerk till the throttle is almost fully pressed?


any help would be appriciated

thanks

anthony