Here's a look inside a failed automatic transmission and what caused it to fail.



This Infiniti G35 AWD transmission was slipping in 4th and 5th gear. In this video, the engine and transmission is removed and the transmission completely disassembled to examine the clutches, band and drum, one way clutch, valve body, solenoid and computer, filter, pan and torque converter.


For a full explanation on how this automatic transmission works, please see this video:

   • How an Automatic Transmission Works (...  


Skip to section in the video:
0:00 Teardown
3:35 Analysis
4:24 Clutches
8:38 Band and Drum
8:54 One way Clutch
9:22 Valve Body, Computer and Solenoids
11:45 Filter and Pan
12:43 Torque Converter


Make sure you change your transmission fluid and filter to extend its life. You can purchase supplies for that here:


Transmission Fluid:
https://amzn.to/3fMiO0B (US)
https://amzn.to/3fGYnSF (Canada)
Transmission Filter Kit:
https://amzn.to/2F7dPLf (US)
https://amzn.to/2PEZg3B (Canada)
Fluid transfer pump:
https://amzn.to/3fEOfda (US)
https://amzn.to/3ivKatL (Canada)

Fluid Funnel:

https://amzn.to/2DEA3Ur (US)
https://amzn.to/2XLZ8nz (Canada)
Socket set:
https://amzn.to/31FPtzZ (US)
https://amzn.to/33MqAFw (Canada)





Reference videos:
How a FWD Transmission Works:
   • How an Automatic Transmission Works (...  

How a Torque Converter Works:
   • How a Torque Converter Works  

How to Change Transmission Fluid and Filter (with dipstick):
   • Transmission Filter & Gasket Replacem...  

How to Change Transmission Fluid (without dipstick):
   • Toyota / Lexus Sealed WS Transmission...  

How a Differential Works:
   • How a Differential Works  

How a CV Axle Works:
   • How a CV Axle Works  


This is the Camera I use:
https://amzn.to/2Y24ixX (US)
https://amzn.to/2Yhb3eo (Canada)

Link to Etsy shop where you can purchase speedkar99's brother's socks, t-shirts or hoodies:
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