2017 Silverado 5.3L Loud Ticking Sound Solution
Channel: SloJoe Racing
Date: 2022-01-26

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License code: 4HPBV4E47YOADG5S

My 88k Mile 5.3 has sounded like her worst days were just around the corner. On cold startups you can hear a louder than usual ticking sound coming from under the engine bay, but more pronounced on the driver side fender well. I ordered an automotive stethoscope which I have linked below and found that my Brake Vacuum Pump was the culprit of the loud ticking sound. The brake vacuum pump does have an open TSB(Technical Service Bulletin), but since I only had 1 of the symptoms I decided to replace it myself. Part linked below.

Updated Vacuum Pump - https://www.amazon.com/gp/product/B08R6GJWMF/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1

Automotive Stethoscope - https://www.amazon.com/gp/product/B01BUJZBOO/ref=ppx_yo_dt_b_asin_title_o06_s00?ie=UTF8&psc=1

TSB - https://static.nhtsa.gov/odi/tsbs/2019/MC-10167479-9999.pdf