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Hpi Rc

Whats wrong with a servo for an hpi rc car, if its "buzzing" when at rest, but functions normally otherwise?
I have an HPI RS4 RTR 3... it has SX-1 servos The front servo, used for steering the car, makes this buzzing noise, and wont rest. The servo still steers the wheels pretty well, but when at neutral, you can hear it making this noise. Sometimes you can get it to rest, but it starts back up, buzzing again. I am almost positive it has nothing to do with the frequencies or anything, it makes no difference how far away from the car the transmitter is, and its never done this before. I know its not the reciever, because the other servo running on the same reciever works just fine. I know its not mechanical, because I cracked it open and cleaned it all out. Mechanically speaking, the servo moves all throughout its range of motion no problem. I think its something in the electronics of the servo, but Im not sure. What I really want to know is, is the servo toast? and if its not, can I repair it cheaply? or is it better to get a new one? I just dont want to crash because of a bad servo. THX

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Where can I find a HPI Nitro RC car in Northern Ireland? ?
HI there, am looking for the above but I cant seem to find numbers for any shops that supply the HPI RC cars, any help would be really appreciated as I will be going from southern Ireland and just need to check where I can purchase before I drive all the way up, thanks, amrs828

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Anyone know anything about the hpi/rc driver contest?
When will we know who wins?

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