2021 Chevrolet Malibu Fuel System Problems

Your car's check engine light came on while driving on the highway, causing a loss of power and then stalling. When you tried to restart it, the engine wouldn't turn over (just clicking sounds), and the transmission wouldn't shift out of gear—a dangerous situation that required emergency help. A mechanic diagnosed a fuel pump circuit failure (fault code P023F), which prevented the engine from getting fuel. Additionally, your dashboard incorrectly displays "Shift To Park" even when the car is already parked. Fixing this will likely require replacing the fuel pump assembly and possibly addressing the transmission shift sensor.

Your check engine light came on while driving, and you noticed your car hesitating when trying to accelerate from a stop—this happened multiple times. The dealer diagnosed a throttle body failure (fault code P1101) and replaced it, but the problem came back. They cleaned the throttle body on a second visit, but the hesitation returned again within a month. Chevrolet said the vehicle isn't covered under warranty. The fix typically involves cleaning or replacing the throttle body and checking the mass airflow sensor that works with it.