Description
4L60E TransGo Reprogramming Kit, 1993-2015, 4L60E-HD2.
This 4L60E-HD2 Reprogramming Kit fits 1993 to 2015 General Motors vehicles equipped with the 4L60E, 4L65E and 4L70E automatic transmission. Common complaints on this transmission are TCC slip or shudder, code P1870 or P0894, harsh 1-2 shift, double bump shifts, 2-3 flare up, burnt 3-4 clutch plates as well as inconsistent pressure boost problems.
This 4L60E TransGo Reprogramming Kit can be installed while the transmission is in the vehicle on 1993-2006 models only without the input speed sensor. 2007 and later models equipped with the input speed sensor require transmission removal. This kit also includes #7-CS 3-4 clutch piston return spring kit for the input drum which reduces centrifugal 3-4 clutch apply and failure in 1st gear at 5500 RPM or higher, transmission removal required.
Corrects / Prevents / Reduces:
- TCC slip or shudder
- Code P1870 and P0894
- Harsh 1-2 shift
- Long soft shifts
- Double bump or slide bump on the 1-2 shift
- 2-3 flare up
- 2-4 band failure
- Burnt 3-4 clutch plates
- Burnt forward and low/reverse clutch plates
- Pump slide and valve bore wear
Includes:
- Second servo piston spring, two shims and two O-rings
- (2) 1-2 accumulator springs, spring seat and three spacers
- 3-2 Downshift valve spring
- Actuator feed limit valve spring
- (2) 1-2 accumulator valve springs
- USA-made hardened steel 1-2 shift valve and spacer
- Low valve spring
- USA-made hardened TCC regulator and isolator valve, spring and installation bolt
- (2) Pressure regulator valve springs and spacer
- .500” boost valve, bushing and snap ring
- EPC screen wire spacer and oversized 1-2 checkball
- (2) Drill bits
- (2) Reverse input piston orifice cup plugs
- 3-4 accumulator spring
- (2) Valve body gaskets
- Pan gasket
- 3-4 clutch return springs and orifice capsule
- Forward clutch return springs and installation washer
