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HOW TO INSTALL Harmonic Balancer - GM 4.2L Envoy/Trailblazer

How to Install Harmonic Balancer - Envoy/Trailblazer. I finally got the engine put back together and it's running smooth. In this video I show how I installed the harmonic balancer on my 2004 GMC Envoy with a homemade installer tool. Harmonic balancer installation on GMC Envoy 4.2l or Trailblazer 4.2l. After an initial diagnosis of low oil pressure with a manual pressure gauge in my 2004 GMC Envoy (~255,000 miles), I decided to investigate the oil pickup tube. Come to find out, it was about 90% clogged! This is how I fixed it. GM 12628565 Timing Cover/Oil Pump https://amzn.to/2SRCBnV GM 89017622 Crankshaft Oil Seal (Front) https://amzn.to/2IpyQ5l GM Air Conditioning Pressure Sensor https://amzn.to/2ByeUY4 Permatex Ultra Grey RTV https://amzn.to/2Eai9qc Waiting on Harmonic Balancer Installer (GM 4.2L Oil Pickup Tube Removal - Part 4)    • Waiting on Harmonic Balancer Installe...   Diagnosing Envoy Low Oil Pressure Part 1    • DIAGNOSING ENVOY/TRAILBLAZER LOW OIL ...   Diagnosing Envoy Low Oil Pressure Part 2    • Diagnosing Envoy Low Oil Pressure - P...   Diagnosing Envoy Low Oil Pressure Part 3    • Diagnosing Envoy Low Oil Pressure Part 3   Music Credit: https://www.bensound.com/