Coursera Flash Sale
40% Off Coursera Plus for 3 Months!
Grab it
Learn to diagnose and repair a common fuel system issue in GM trucks through this detailed automotive repair tutorial. Walk through the complete process of replacing a fuel pump in a 2018 GMC Sierra while simultaneously addressing an EVAP system leak caused by a rust-swollen lock ring that cracked the fuel sending unit top. Discover why this particular failure is prevalent in these vehicles and master the diagnostic techniques needed to identify the root cause. Follow the step-by-step repair procedure, including proper tank preparation, component removal, and installation best practices. Gain valuable insights into working with nearly empty fuel tanks to simplify the repair process, plus essential tips for preventing similar issues. Understand the relationship between EVAP system integrity and fuel pump assembly condition, and learn to recognize the warning signs of lock ring corrosion before it leads to component failure.
