When did the 4R44E become the 5R55E?
In 1996, with the 4.0L, the drive components were beefed up to become the 4R55E. In 1997 the unit became a 5-speed by applying the front servo to obtain an overdriven first and 5th. From that time on, it’s become either a 5R44E or 5R55E. Since 1995 there have been many valve body, plate or solenoid changes.
What kind of transmission is used by AMC?
AMC branded the Torqueflites as the Torque Command using the previous naming convention – both the A-727 and A-904 (including the later 999 derivatives) were used with the addition of the Aisin-Warner 4 (AW4) used with the Jeep XJ series.
When to use 4th shift in Ford 5R110W?
The secondary shift sequence, when ambient temperature is below 5° F, is 1st-2nd-3rd-4th-6th. The transmission’s 4th gear is used in cold weather to increase engine RPM to help the engine and the transmission reach normal operating temperature in less time.
What kind of engine does an AMC have?
Early AMC (1955-1971) automatic Model Engine Years Used M-40 290 2-bbl V8 1967–1969 M-42 199 I6 1970–1971 M-43 232 I6 1970–1971 M-44 304 V8 1970–1971
In 1996, with the 4.0L, the drive components were beefed up to become the 4R55E. In 1997 the unit became a 5-speed by applying the front servo to obtain an overdriven first and 5th. From that time on, it’s become either a 5R44E or 5R55E. Since 1995 there have been many valve body, plate or solenoid changes.
Why does the coast clutch not apply in the 4R?
When this bore is worn, the solenoid oil flows around it, resulting in the loss of overdrive servo release pressure. This results in no 4th in a 4R or no 2nd and 5th in the 5R unit. If it sticks, the coast clutch will not apply. This wear can be found on a hydraulic test bench or with the Wet Air Test in Figure 6.
What causes a harsh shift on a 4R44E?
From the same circuit the complaint can be delayed reverse, flare 1-2 or 2-3, and harsh shifts following a forced downshift. The harsh shifts occur because the EPC “booster” valve gets stuck at maximum flow. EPC circuit problems also cause broken bands and servo piston seal blowout.