Chevrolet Tahoe electrical issues after car wash, waiting for wiring harness and #6 injector replacement on Chevrolet Tahoe

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

Problem overview

Some Chevrolet Tahoe owners report experiencing electrical issues after a car wash, often related to the wiring harness and the #6 injector. These problems can stem from loose connections, damage, or moisture ingress in the wiring harness, leading to various electrical malfunctions. Additionally, some owners find that replacing the #6 injector is necessary to resolve specific engine performance issues, as a faulty injector can negatively impact fuel delivery and efficiency. Regular maintenance of the electrical system is crucial to prevent such issues, as ensuring that all components are properly sealed can help mitigate water damage risks. For accurate diagnosis and resolution of these electrical problems, it is advisable for owners to consult a qualified mechanic or dealership service center. Prompt attention to these concerns can enhance the safety and reliability of the Chevrolet Tahoe.

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