Chevrolet Trax excessive fuel consumption issue likely related to purge valve failure on Chevrolet Trax

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

Problem overview

Some Chevrolet Trax owners report experiencing excessive fuel consumption, which is often linked to a malfunctioning purge valve. This crucial component regulates the flow of fuel vapors from the charcoal canister to the engine, and if it fails to close properly, it can result in an excess of fuel vapors entering the engine, leading to increased fuel consumption. Additionally, General Motors has issued technical service bulletins for certain Chevrolet Trax models, particularly those with the turbocharged 1.4L I4 LUV gasoline engine, highlighting issues with the evaporative emissions purge valve not closing completely. Repair costs for a purge valve replacement typically range from $92 to $118, making it important for owners to obtain a detailed estimate for repairs. To enhance fuel efficiency, regular maintenance and proper driving habits are recommended, as ensuring the purge valve's functionality can help prevent excessive fuel consumption. If owners suspect a purge valve issue, it is advisable to have the vehicle inspected by a qualified mechanic for accurate diagnosis and prompt resolution.

2 people reported this problem
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Chevrolet Trax vehicles with this problem

1 model year affected
Average mileage: 30,000 miles
(30,000 - 30,000)

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