I've been in this hobby for 25+ years and I have never had an issue like this with any of my other nitro cars or my old-school electrics with manual speed controls (2 servos like nitro). This is a Nitro Slash with a Novarossi 2.5 and Jato tranny. The truck is fast and the other day I noticed that it wasn't steering right very well and ended up jumping a curb at one point because it didn't slow down fast enough and luckily didn't break anything.

When the truck is at full-lock to the right and the throttle is applied, the steering servo turns back toward center. I'm using the same Flysky GT3B with all my other models and no issues so I've ruled out the transmitter. Rx battery is fully charged also. See the video below:

Sorry, couldn't get vid to embed.

https://www.youtube.com/watch?v=1a1viBv6Pyk

Looks like radio noise is it 2.4