Chrysler/Dodge/Jeep 4XRE Transmissions No Movement
Complaint: A vehicle equipped with a 4XRE Series Transmission stopped moving suddenly soon after overhaul. Since an unmodified 4XRE valve body does not charge the torque converter in Park, the fluid level was check in the Neutral position, it was over full. The technician then removed the return cooler line to check for cooler flow
Ford Focus 4F27E Harsh Garage Shifts
Complaint: A 2006 Ford Focus with the 4F27E Transmission has complaints of harsh garage shifts as well as harsh lift throttle coast downshifts. All upshifts are perfect and no trouble codes are stored. An exchange valve body complete with solenoids did not eliminate the complaints. The Mass Airflow Sensor was cleaned and checked and the
4L60E/65E/70E Input Carrier Change
The input carrier and the reaction carrier shaft were modified to accommodate the updated bearing.
GM 4L70-E ISS DTC P0716 or P0717
Find diagnostic and building tips in Transmission Digest’s Tech/Talk quarterly bulletin – October ’20
Toyota/Lexus U660E, U660F: Critical Wear Areas and Vacuum Test Locations
OE valves are shown in a rest position and should be tested in a rest position unless otherwise indicated. Test locations are pointed to with an arrow. Springs are not shown for visual clarity. A low vacuum reading indicates wear. What should my vacuum test results be? While a properly calibrated and maintained test stand
Allison 1000/2000 P2 Planetary Carrier Changes
In this edition of Transmission Tech/Talk, Wayne Colonna describes a new design for the Allison 1000/2000 P2 sun gear thrust bearing.
GM 4L65E: The Purpose of Omitting the #5 Ball
Wayne Colonna describes a 4L65E with a modified valve body spacer plate where the #5 checkball was left out.
The World’s First FWD 8-Speed Transmission
In this February Tech Talk article, Wayne Colonna breaks down the AWF8F35, developed by the Aisin Group.
Kia Borrego: A5SR2 Transmission
This A5SR2 came into the shop in 4th gear failsafe. The codes pulled were P0732, P0733 and P0734 gear ratio codes along with a P0763 Direct Clutch (D/C) solenoid performance code.
January 2020 Issue
In this Issue:
VW Touareg: Shift Interlock & Stop Lamps Inoperative
Kia Borrego: A5SR2 Transmission
Kia Borrego: A5SR2 TCM Upgrade
December 2019 Issue
Honda 4- and 5-speed Transmission: Whines in Neutral
Honda CRV 5-speed: P0983 Open Solenoid D Circuit
Acura MDX BYFA 5-speed Transmission: P1744 Shift Valve E Stuck On
November 2019 Issue
In This Issue
Mazda 6 – AW6A-EL: Stuck in High Gear Failsafe
Mercedes Benz M Class: Transmission in Limp Mode
GM 8L90: Elimination of the #7 Checkball
