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Dan, Technician
Category: Chevy
Satisfied Customers: 24164
Experience:  Independent Shop Experience, 2 Year Automotive Diploma, & Access to Information Database
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I tried installing a tune on my 2005 1500 Chevrolet

Customer Question

I tried installing a tune on my 2005 1500 Chevrolet Silverado and code 357 came up on the bully dog gt gas programmer
Submitted: 1 year ago.
Category: Chevy
Expert:  Dan replied 1 year ago.

Hello, my name is***** code is related to the ignition coil 7 and most likely means coil has failed. Swap #7 coil with another cylinder to see if misfire follows coil, if so replace the coil. Here is a picture of firing order so you know where cylinder 7 is. Let me know if you have more questions or if there is anything else I can do to help. Thanks.