Pull the pan and the filter, remove the solenoids and wiring harness, remove the valve body bolt, lift the valve body, and turn it over. The reason? A worn TCC regulator valve! The “check engine” light might turn on. A diagnostic scan comes up that shows code 1870 internal slippage. The second is so hard that it almost feels like a shift kit has been installed. Hard Second Gear– The third most common symptom of a failing 4L60E transmission is the difficulty in shifting to the second gear.Though the shell is supposed to be one piece, not only can it break off, but it can also strip out the splines. After the drums are removed, remove the snap ring, pull out the planetary gearset, remove the input ring gear, and check the drive shell. The reason? A broken drive shell! Open the shell. No Second Gear/Reverse – The second most common symptom of a failing 4L60E transmission is your inability to shift to second gear and go reverse.What you need are a new piston and a clutch pack. Hydraulic pressure blows around it and the clutch pack fries. But what causes it? The 3/4 piston rubber seals shrink from heat and age. The problem? 3-4 clutch pack failure! Take the bell off, pull the pan, take out the filter and solenoids, pull the pump and drone, separate the drone, and what you will see is a burned up 3/4 clutch pack. When you put your vehicle in third gear, the engine runs away as if it’s in neutral. Everything works fine until you go to the third gear.
93 94 4l60e shift kit how to#
Here are 3 symptoms of a failing 4L60E transmission and how to diagnose the problems:
For better performance, get automatic transmission rebuild kits. Just like any other transmission, 4L60E can also experience problems and might require an upgrade. Some of the most popular cars that used the transmission include the Chevrolet Corvette, Camaro, Impala, and more. The transmission was used in a large number of vehicles, including GM vans, SUVs, trucks, as well as many rear-wheel-drive cars. Although both transmissions were quite similar, it was the first time when GM shifted from a hydraulically-controlled transmission to an electronically-controlled one.
93 94 4l60e shift kit upgrade#
The 4L60E transmission by General Motors first came onto the scene in 1992 where it served as a replacement or upgrade to the 700R4 transmission.
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