Pontiac G6 snapping sound during hard braking due to rear trans mount issue on Pontiac G6

Submitted by snowserpent · Jun 23, 2025
Published by RepairPal

Problem overview

Some Pontiac G6 owners report experiencing a snapping sound during hard braking, which may indicate underlying issues with the vehicle's components, particularly the rear transmission mount. Neglecting such brake noises can lead to more costly repairs, making it crucial to address any irregularities promptly. The snapping sound could be related to the rear end of the vehicle, and it is essential to have this diagnosed and repaired by a qualified mechanic to ensure safety and optimal performance. Additionally, some owners find that unusual sounds during braking can stem from worn brake pads, rotors, or calipers, highlighting the importance of a comprehensive inspection of the braking system. If the snapping sound persists after addressing potential brake-related issues, further investigation into the rear transmission mount may be necessary to identify and resolve the root cause.

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Pontiac G6 vehicles with this problem

1 model year affected

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