Radio is radio regardless of the frequency. 2.4ghz should be able to hop from a frequency where it encounters interference to another to try to clean things up.

Trouble is, ignition noise and other RF noise our planes generate, no matter if it's from the plug, boot, wires, linkages, or loose metal bits is wide spectrum, radiating over entire bands, not over single channels. So, if you're lucky, the system may be able to jump away from the trouble. But it may not be able to.

Always do everything possible to eliminate RF noise before changing radio systems to dodge it.

J