very weird electrical issue

[GsElRiMkS]

Ok I just picked up a used revo 2.5 with a 3.3 on it, every thing else is stock, has the eazystart on it but needs a glow warmer, so here's the problem, when I put the glow warmer on it the trans shifts and the throttle servo moves a considerable amount, I was thinking a ground issue but none of the electronics touch the motor, any ideas? Please help thanks

 

[frickenjoey]

It sounds like you have a bare spot on a wire...servo or antenna wire. I am also guessing you are running an AM radio. I had one that did that and could do nothing about it. Once I started it and let off the glow starter and roto start it would quit. Check all your wires...see what you find.

 

[Rolex]

Having that radio right next to the receiver will also cause some twitching.

 

[GsElRiMkS]

Thanks guys ill look around it for that and its not a twich it will fully shift in and out of reverse and fully closed to fully open throttle, and the lights on the opti drive flicker, but I have noticed teaching on my other cars didn't know that could be caused by the receiver being to close, thanks for the info

 

[olds97_lss]

The metal on metal contact causes glitching in general. I used to have that before I got a 2.4G radio system. AM/FM both did it when I'd put the heater on the plug. AM was worse than FM and I didn't run AM for very long.