Buick Rainier rear air bag shocks deflated due to faulty air compressor on Buick Rainier

Submitted by Much Respect · Jun 23, 2025
Published by RepairPal

Problem overview

Some Buick Rainier owners report experiencing issues with rear air bag shocks deflating, often due to a faulty air compressor. These problems can occur when the air compressor fails to function correctly, resulting in an inability to properly inflate the air shocks. A common symptom of this issue is the compressor running continuously for an extended period without successfully inflating the air bags. Additionally, some owners find that leaks in the air bags themselves contribute to deflation, particularly at the connection points or from dry rot cracks. To identify these leaks, using soapy water can help reveal escaping air. If the air compressor is confirmed as the source of the problem, replacement may be necessary to restore proper functionality and inflation of the rear air shocks. Addressing these concerns promptly is crucial for maintaining the vehicle's performance.

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Buick Rainier vehicles with this problem

Average mileage: 130,000 miles
(130,000 - 130,000)

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