This burns the 3-4 clutch and hazes the band.
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. Finally it flairs or won’t even complete the 2-3 shift. This 4L60E-HD2 Reprogramming Kit fits 1993 to 2015 General Motors vehicles equipped with the 4L60E, 4L65E and 4L70E automatic transmission. In addition, the longer lands distribute load over a greater surface area for increased durability. This softens the 2-3 shift feel and worsens progressively as shift point RPM goes up. It also features longer spool lands allowing the valve to operate in non-worn portion of the bore. This drop-in precision USA-made steel valve is design to provide full-time line-to-lube, as well as restoring the hydraulic integrity of the circuit without the need to machine the bore. For the same reason, the symptoms will vary as well, ranging from harsh shifts, soft shifts, burnt frictions, overheating, to converter clutch failure. On the other hand, in those cases where the wear is most prevalent at the spring end of the valve, the leak in that area would cause low line pressure. Moreover, if the wear is severe enough, it can result in unregulated high line pressure. As a result, in cases where the wear is most prevalent at the balance end of the valve, the pressure will be unstable. What can I do to improve the shifting on a 65rfe transmission It doesn't seem like there's anything out here unless it's the same as a 545rfe. 1993 to 2015 General Motors vehicles equipped with the 4L60E, 4L65E, and 4L70E automatic transmissions over time wear out the line pressure regulator (PR) valve bore.