Top 5 Problems GMC Sierra 1500 Pickup 3rd Generation 2014-2018 @1AAuto
Top 5 Problems GMC Sierra 1500 Pickup 3rd Generation 2014-2018  @1AAuto
Uploaded April 2025 | Updated September 2026, 3 weeks ago
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These are the top 5 problems with the 3rd generation GMC Sierra, which you can find in model years 2014-2018. In this video, Andy discusses the most common problems that you might come across as the owner of a Sierra Pickup. Learn how to identify and solve these problems by watching this video! Then check the link at the top of this description to find parts you need at 1AAuto.com!

0:00 Top 5 Problems GMC Sierra 1500 Pickup 3rd Generation 2014-2018
0:26 Vacuum Pump
0:47 AFM Lifters
1:20 Heating/AC Door Actuators
1:53 Transfer Case Shift Actuator
2:15 Transmission Failure

This repair was done on a 2015 GMC Sierra 1500 SLT 5.3L Extended Cab Pickup 4-Door 4WD Automatic and the process should be similar on the following vehicles:
2014 GMC Sierra 1500
2015 GMC Sierra 1500
2016 GMC Sierra 1500
2017 GMC Sierra 1500
2018 GMC Sierra 1500

🔧 List of tools used:
• No Tools Needed

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While 1A Auto strives to make the information provided in this video as accurate as possible, it makes no claims, promises, or guarantees about the accuracy, completeness or applicability of the content. No information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. All do-it-yourself projects entail some risk. It is the sole responsibility of the viewer to assume this risk. 1A Auto is not responsible or liable for any loss damage (including, but not limited to, actual, consequential, or punitive), liability, claim, or any other injury or cause related to or resulting from any information posted in this video.
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Top 5 Problems GMC Sierra 1500 Pickup 3rd Generation 2014-2018

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