#1990 - AI, ADAS & Everyday Fixes

If the brakes are holding but the engine is still “pushing,” something may be keeping the throttle open when it shouldn’t. In the episode, the team recommends checking for a bunched-up floor mat pressing the gas pedal. If the issue persists or the car goes into limp mode, don’t drive it—have it inspected or towed.

It can, especially if something gets bumped or left disconnected under the hood. The show mentions the possibility of a vacuum line being disturbed during a quick service. If a problem starts immediately after a visit, call the shop right away and describe exactly what happened.

Limp mode is a protection strategy that limits power when the vehicle detects a problem that could cause damage or unsafe operation. In the caller’s case, the symptoms sounded like the throttle or pedal input wasn’t behaving normally. Treat it as a serious warning—avoid driving until the cause is diagnosed.

The team recommends using an engine degreaser (like “gunk” style cleaner) and following the instructions on the can. Be careful around electronics and avoid blasting the engine bay with a water hose. A light rinse or controlled wash-down is safer than going “buck wild” with water.

The show explains it can help in many cases, but at very high mileage there’s more risk than usual. A service advisor should check the condition of the existing fluid first—burnt-looking or burnt-smelling fluid is a red flag. If you do it, understand it’s not guaranteed and could potentially reveal existing wear.

In the episode, they note many modern vehicles don’t use a traditional replaceable filter like older designs—often it’s more of a screen. The focus is getting the fluid exchanged rather than dropping the pan. If the screen is clogged, that usually points to a bigger internal issue than fluid service alone can fix.

The answer was cleaning the mass airflow (MAF) sensor using a dedicated MAF cleaner. If the sensor gets dirty, it can affect fueling strategy, and that can influence how the transmission behaves. It’s a quick under-the-hood maintenance item on some vehicles, but access and procedure vary by model.

ADAS features like lane monitoring and camera-based alerts rely on precise calibration to work correctly. The episode highlights that cutting corners to make repairs cheaper can put safety at risk. Ask the shop how calibrations are performed and request documentation showing what was done.

The show shares an example where an aftermarket mirror “worked,” but calibration targets showed it was drastically off. If the camera system isn’t properly calibrated, the feature may not detect vehicles the way you expect. That’s why it matters to ask what parts were installed and how calibration was verified.

They recommend pulling in some outside air first when the cabin is hotter than the outdoors, then switching to recirculation once the inside cools down. Recirculation reuses cooler cabin air so the A/C can drop temps faster. Sunshades and ceramic window tint were also discussed as ways to reduce heat buildup in the first place.