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My truck engine turns but does not start, did a check and shows p1684.

Vehicle: 2008, GM, k10543, 350

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We just updated the information. You probably have to have the dealer reprogram the Transmission Control Module (TCM) for you.

P1684 CHEVROLET - Transmission Control Module Power Up Temperature Sensor Performance

Read more: https://www.autocodes.com/p1684_chevrolet.html

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