July 2007 Issue
Issue Summary:
Before and after a rebuild, the transmission may experience premature failure of the reverse, direct or coast clutch.
The vehicle owner may complain of a delayed reverse and/or flare on the 3-4 shift and may feel bind-up in reverse and 4th. The unit may failsafe with a code for incorrect 4th-gear ratio.
After a rebuild, the converter clutch may not operate, possibly producing code P0741, “converter clutch slippage detected.”
BMW vehicles may exhibit a delay of two to 30 seconds from Park into Drive during the first cold start in the morning.
The malfunction indicator lamp is illuminated with code 55 or P0735 stored for “Gear Ratio Error in 5th Gear.”
There are no complaints of slipping or poor drivability.
Some vehicles may suddenly exhibit a bind-up on the 1-2 shift.
June 2007 Issue
Issue Summary:
In Allison 1000/2000 units, a sticking transmission-pressure-switch assembly can cause complaints of erratic shifting, a shift to the wrong gear and limp mode with the malfunction indicator lamp illuminated.
The forward-clutch drum in a 4R75E is susceptible to cracking in the area of the snap-ring groove, lead-ing to excessive slip in all forward ranges.
May 2007 Issue
Issue Summary:
In a GM vehicle with a 4T65-E transaxle, code P1887 (malfunctioning TCC release switch) can be caused by any of several electrical or mechanical issues.
On a 2004 or later Cadillac DeVille, switching the front tires with each other can illuminate a warning lamp in the driver information center.
April 2007 Issue
Issue Summary:
After overhaul, vehicles equipped with the Ford 5R55N may exhibit a soft or flared upshift into 3rd gear.
Vehicles equipped with the Chrysler 45RFE may exhibit a slip on take-off or no movement after overhaul or fluid change.
Corroded terminals in the PCM connectors can cause failsafe in a 1998 or later Dodge truck with Cummins diesel engine, resulting in 3rd-gear starts.
March 2007 Issue
Issue Summary:
After replacement of either the transaxle or the TCM, the transmission exhibits either a neutral condition after reaching 6 mph or a harsh 2-1 coast down-shift.
After transaxle replacement, the vehicle may exhibit erratic shifts or diagnostic trouble codes related to gear-ratio errors.
February 2007 Issue
In This Issue
GM 4T65-E: P0742: TCC System Stuck On
January 2007 Issue
Issue Summary:
A 2002-2003 Volkswagen Jetta with a 2.0-liter ultra-low-emission gas engine and the 01M transmission may exhibit a long, delayed engagement into drive when cold.
An F4E-111 transaxle in 1998-and-up Kia vehicles may exhibit a harsh 1-2 upshift or multiple solenoid-circuit faults after overhaul.
After a rebuild or fluid change, Jaguar, Land Rover Freelander and VW vehicles with the JF506E transmission may have no reverse and barely any forward movement.
In any vehicle except a Mazda, the JF506E will not have a filler tube or dipstick.
In a JF506E, a reduction band that is out of adjustment may cause gear-ratio errors to be stored, and the transmission may chatter in forward and reverse.
Some Volvo models equipped with the AW 55-50 transaxle may exhibit a neutral bang on take-off before or after overhaul.
December 2006 Issue
In This Issue
Ford/Lincoln/Jaguar: Pressure-Control-Solenoid Performance Codes
November 2006 Issue
In This Issue
Lexus A761E: Preliminary Information
October 2006 Issue
Issue Summary:
Some 1994-95 Isuzu Troopers with the 4L30-E may exhibit code 37, which will cause limp mode.
A 1995-97 Volkswagen/Audi with an O1M neutralizes either during an upshift into 4th gear or while operating in 4th gear.
After overhaul, 2001-and-up Ford vehicles equipped with the 4R70W, 4R70E or 4R75E may exhibit a 2-3 neutral upshift.
September 2006 Issue
In This Issue
Volkswagen/Audi: Parts Mismatch
August 2006 Issue
Issue Summary:
We provide exploded views of the Aisin Seiki 450-43LE valve body and identification of its components.
Before or after overhaul, some Volvo models equipped with the AW 55-50 SN transaxle may exhibit a neutral bang on takeoff.
