4L60E Power Flow - Manual 1st, Manual 2nd, & Manual 3rd

How an automatic transmission works can be mysterious. However, it doesn't have to be. In the last video, we learned how the power flows through the 4L60E automatic transmission. We learned about the clutches, the band, the one-way clutches, the planetary gear sets, etc. In this video we learn about 4L60E diagnosis. Once we have an understanding of how this automatic transmission works, and we combine that knowledge with reference material (clutch & band application chart), we can then start to understand the basics of automatic transmission diagnosis.

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**More 4L60E Videos**
Pump:    • 4L60E Pump: How Does It Work? (Part 1)  
PR Valve (Part 1):    • 4L60E Pressure Regulator Valve (Boost...  
PR Valve (Part 2):    • 4L60E Pressure Regulator Valve (Boost...  
PR Valve (Part 3):    • 4L60E: PR Valve (Part 3) Torque Signa...  
AFL Valve (Part 1):    • 4L60E: AFL Valve (Part 1) How it Works  
1-2 Shift Valve + Solenoid (Part 1):    • 4L60E: 1-2 Shift Valve + 1-2 Shift So...  
1-2 + 2-3 Shift Solenoid (Part 1):    • 4L60E Shift Solenoid - Part 1 (Basic ...  
Planetary Gearset:    • Planetary Gearset - How it works (aut...  
Power Flow (OD Gears):    • 4L60E Power Flow (1st, 2nd, 3rd, & 4t...  
Power Flow: (Manual Gears):    • 4L60E Power Flow - Manual 1st, Manual...  
Teardown:    • 4L60E Rebuild: Teardown (Disassembly)  
Teardown Time-Lapse:    • 4L60E Teardown (TimeLapse) (GM Automa...  
Output Shaft Swap (2WD to 4WD Conversion):    • 4L60E Output Shaft Swap - 2WD to 4WD ...  

RESOURCES:
1) 4L60E Tools: (Paid Links)
Electrical Harness Case Connector Tool: https://amzn.to/3uJeqXZ
Torx Plus Bit/Socket: https://amzn.to/3l4Ad8X
Teflon Seal Ring Installer (Sizing Tool Kit): https://amzn.to/3BWwQZP
Shift Shaft Seal Puller/Installer: https://amzn.to/2Oa2sat
Universal Transmission Pump Puller: https://amzn.to/3t7uDFH
3-Ton Arbor Press (12 inch working height): https://amzn.to/2Reqmyx
Lip Seal Installer: https://amzn.to/2Gz4KI5
Lip Seal Installer (Huge Time/Headache Saver): https://amzn.to/2MxUC8O
Pump Alignment Band: https://amzn.to/2J13lNF
Universal Clutch Spring Compressor (Use in trans & drums): https://amzn.to/2YHQGn6
Adjustable Clutch Spring Compressor (Use with shop press): https://amzn.to/2W2DAQs
Universal Bushing Driver Kit (Larger Sizes): https://amzn.to/2M1aQHn
Universal Bushing Driver Kit (Smaller Sizes): https://amzn.to/2Et1ON3
Snap Ring Pliers (Clutch Spring Compressor Snap Ring): https://amzn.to/2GwwixP
Snap Ring Plier Set (Pump Circlip Snap Rings): https://amzn.to/2IUxpdu
2) 4L60E Parts: (Paid Links)
Bell Housing Bolts (Torx): https://ebay.us/vZLBiN
Pan Gasket (Fiber): https://amzn.to/2N4Ykba
Filter: Shallow Pan: https://amzn.to/3t7AtH7 Deep Pan: https://amzn.to/30sVoYL
Output Shafts:
Heavy-Duty: 2WD: https://amzn.to/3dxjw4q. 4WD: https://amzn.to/2NRN9m0
Standard-Duty: 2WD: https://amzn.to/3pKoptk 4WD: https://ebay.us/cDwiJt
Rebuild Kit: 93-03: https://amzn.to/3chb3Qw 04-Up: https://amzn.to/2OaYJcL
Molded Pistons: https://amzn.to/3chRbNb
2-4 Band: Stock: https://amzn.to/3rvW2ke Hi-Perf: https://amzn.to/2N3JRw2
Sun Shell: Upgrade: https://amzn.to/3cbPmRK Heavy-Duty: https://amzn.to/3rzAEuv

3) Safety-Wear: 😷 (Paid Links)
A) Comfortable Safety Glasses: https://amzn.to/2JguhZN
B) Work Boots: https://amzn.to/2GD9eP7
C) Nitrile Gloves: https://amzn.to/2Y6XwSN
4) Tools: 🔧 (Paid Links)
Craftsman 230-Piece Tool Set: https://amzn.to/2L0AtWv
1/2 Impact Gun (Ingersoll Rand): https://amzn.to/30zUuHA
3/8 Impact Gun (Ingersoll Rand): https://amzn.to/30l5gpm
Air Compressor (60 Gallon)(Ingersoll Rand): https://amzn.to/2QkisXt
1/4 Air Hose (Flexzilla): https://amzn.to/2QjJQ7W
Pocket Screwdriver: https://amzn.to/2OdoR44
Spring-Loaded Center Punch: https://amzn.to/304x3dx
Yellow Paint Pen: https://amzn.to/2LZRQWq
Brass Punch: https://amzn.to/2QlSAe1
Bench Vice (Craftsman): https://amzn.to/2LFnKbZ
5) Shop Supplies: ✏️ (Paid Links)
Thread Locker: Medium: https://amzn.to/2YLtmFk Heavy:
Brake Parts Cleaner: https://amzn.to/2HxQ1Pz

DISCLOSURE: 🕵
Links provided are affiliated links with the associated websites. While there is no extra cost to the purchaser, a small portion of the sale goes to support this YouTube channel.