Bump steer – ASE practice questions (VIDEO)

Technician A says other codes should be diagnosed before replacing the converter for a P0420 code. Technician B says an upstream exhaust leak can trigger the code. Who is correct?

Technician A says cabin air filters protect occupants from 200+ contaminants, while Technician B says they protect the evaporator core from blower motor particles.

Technician A says chirp is the most common belt noise complaint. Technician B says EPDM belts can wear out without showing visible damage. Who is correct?

A vehicle with MacPherson strut suspension is in for tires and an alignment. The technician finds play in the left inner tie rod end. What should the customer be told?

A/C systems are evolving with new designs and refrigerants, making accurate diagnosis and repair more important than ever.

Technician A says thrust angle must be set to zero on many ADAS-equipped vehicles during alignment. Technician B says the steering angle sensor and front wheel position must be correct before camera or radar calibration. Who is correct?