Servos go crazy when engine go high rpm

[Super Blaze]

Hi everyone, I have a rampage mt and was working just fine until I start to have problems controlling the truck. When the engine is off every servos work just fine, but when I take off and goes more than 8000 rpm steering servos go to the right or don’t work uncontrollable. What can be?
Thank you for your help

 

[Larry68]

Hi everyone, I have a rampage mt and was working just fine until I start to have problems controlling the truck. When the engine is off every servos work just fine, but when I take off and goes more than 8000 rpm steering servos go to the right or don’t work uncontrollable. What can be?
Thank you for your help

Check your wiring. It'

Check your wiring. It'

Sounds like a short

 

[Willbet]

It is the original servo?