Throttle Problems of Chevrolet Malibu

The contact owns a 2016 Chevrolet Malibu. The contact stated that while driving approximately 70 mph the vehicle's speed suddenly reduced to 20 mph and the message "engine, reduced power" had displayed. After restarting the vehicle the check engine light remained illuminated and the vehicle would drive rough. The vehicle was later taken to an independent mechanic. The cause of the failure was not yet determined. The local dealer was notified of the failure. The manufacturer was not yet contacted. The failure mileage was 143,000.

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The contact owns a 2011 Chevrolet Malibu. The contact stated that while driving at various speeds in inclement weather, the vehicle displayed dct: p2138, causing the vehicle to lunge forward, then remain idle for several seconds, before accelerating forward. The contact took the vehicle to the dealer and was informed that water was intruding into the throttle wiring. The contact was informed that there was no recall for the failure; however, the failure was related to service bulletin NHTSA campaign number: 10139090 (electrical system, engine). The vehicle was not repaired. The manufacturer was not made aware of the failure. The approximate failure mileage 100,000.

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The contact owns a 2009 Chevrolet Malibu. The contact stated while driving approximately 55-60 mph, the vehicle inadvertently decelerated to 40 mph and the warning messages; “service esc” and “engine power reduced” was displayed. The contact continued to drive the vehicle however, the vehicle failed to exceed 40 mph. The vehicle was taken to an independent mechanic where it was diagnosed that the throttle body and the accelerator pedal needed to be replaced. The contact stated that the vehicle was repaired; however, the failure reoccurred. The vehicle was taken back to the independent mechanic who replaced the computer software; however, the failure persisted. The independent mechanic advised the contact to purchase the throttle body from the dealer and have it replaced by an independent mechanic. The contact purchased the part from an unknown dealer and it was replaced by an independent mechanic; however, the failure persisted with the traction control warning light illuminated. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 153,224.

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