Chevrolet Trailblazer reduced engine power warning due to turbo replacement needed on Chevrolet Trailblazer

Submitted by Vehicle Owner · Aug 23, 2025
Published by RepairPal

Problem overview

Some Chevrolet Trailblazer owners report experiencing the "Engine Power Reduced" warning, often linked to a faulty turbo that requires replacement. This issue can prevent the engine from receiving essential telemetry, leading to limited throttle response and the fuel pump shutting off. Some owners have noted this problem occurring at low mileage, including as early as 2,500 miles or 20,000 miles. Additionally, there are reports of the reduced engine power issue persisting even after replacing various components such as fuel sensors, wiring harnesses, and accelerator assemblies. It is crucial for owners to address this problem promptly by consulting a certified mechanic or contacting a Chevrolet dealership for proper diagnosis and repair to ensure optimal vehicle performance and safety.

3 people reported this problem
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Chevrolet Trailblazer vehicles with this problem

Average mileage: 33,000 miles
(15,000 - 51,000)

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