is throttle body service necessary

[CaliFitz]

Yes, throttle body service (cleaning) is necessary preventative maintenance to keep your engine running smoothly, improving acceleration, fuel economy, and preventing rough idling, stalling, or poor performance caused by built-up grime, but it's not a routine item like an oil change unless symptoms appear. It's often recommended every 25k-50k miles or when you notice drivability issues, and it's a simple DIY job to save money.