February 2009 Issue
Issue Summary:
Ford vehicles from the 2004 model year up equipped with the 4F50N transaxle may exhibit a 1-2 slide bang before or after overhaul.
1999-and-up Ford vehicles equipped with the AX4S transaxle may exhibit a 1-2 neutral condition after overhaul.
Before or after overhaul, a BMW/Isuzu with the 4L30-E transmission exhibits soft or flared upshifts, slipping or gear-ratio-error codes.
A 2007 GMC Acadia, Buick Enclave, Pontiac G6, or Saturn Aura or Outlook equipped with a 6T70 transaxle may develop a problem illuminating the “Check Engine” lamp, with one or more codes present.
January 2009 Issue
Issue Summary:
A break or short in wiring or possible failure of the tow/haul mode switch can cause tow/haul mode to be inactive and may set code B2722.
Loss of AFL-valve pressure can result in a neutral condition either during or immediately after the shift to fourth gear in a 4L80-E.
A Saturn Vue with the AF33-5 transmission in limp mode with code P0717 set may have a faulty input-speed sensor.
December 2008 Issue
In This Issue
Dodge 48RE: Valve-Body Hydraulic Differences
November 2008 Issue
Issue Summary:
In the 2004 model year, Chrysler redesigned the solenoid pack in the 45RFE to reduce operational noise by using internal solenoids.
Chrysler vehicles equipped with the 45RFE or 545RFE may exhibit a binding condition on the 3-4 or 4-5 upshift that may be accompanied by a pressure-switch code.
October 2008 Issue
Chrysler PCI
(Programmable Controller Interface)
Module-to-Module Bus Communication, Part 2
September 2008 Issue
Issue Summary:
An Isuzu with a 4L30-E may go into failsafe, with solenoid codes stored, after a fluid-and-filter change.
After overhaul, an Isuzu or BMW vehicle with a 4L30-E may partially stall when the transmission is placed into gear or may exhibit discoloring and/or premature failure of the torque converter.
After overhaul, vehicles equipped with the Mercedes 722.6 transmission may exhibit multiple gear-ratio errors and/or limp mode.
August 2008 Issue
In This Issue
Chrysler PCI(Programmable Controller Interface)
Module-to-Module Bus Communication, Part 1
July 2008 Issue
In This Issue
2001 & Up Ford 4R70W Family: Valve-Body Change
June 2008 Issue
Issue Summary:
Hyundai A4A/B & F4A40/50 Series
Mitsubishi R4A51/V4A51
Toyota 540-E/540-H
1995-2005 Hyundais may exhibit complaints including a flare on the 2-3 shift, no lockup application, no fourth gear, 1-2 shift only and harsh garage shifts.
A Hyundai with the A4BF1 has the MIL on with no apparent drivability complaints and the transmission is not in limp mode, but codes P0743 and P0747 are stored.
A Toyota vehicle with a 540-H or 540-E transaxle may have no reverse, and no engine braking in Manual 2 or Manual 1.
Mitsubishi vehicles with R4A51/V4A51-series transmissions may exhibit poor shift quality or a flared 2-3 upshift after overhaul.
May 2008 Issue
Issue Summary:
A ZF 5HP24 may exhibit a slipping or delayed engagement into reverse and/or drive before and after overhaul and also may have a flared kickdown shift to 4th.
A V-8 BMW model with a 5HP24 may have a buzzing or droning noise coming from the area of the bellhousing.
A Subaru vehicle equipped with the 4EAT Phase II has multiple solenoid codes with erratic transmission operation, which is commanded by the TCM.
April 2008 Issue
Issue Summary:
In the 2000 model year, some Mitsubishi F4A40/50-series transaxles were equipped with newly designed plastic-body solenoids.
A Mitsubishi or Hyundai vehicle may arrive at your shop with code P1723 or Mitsubishi code 54, or in limp mode (3rd-gear starts) with no codes.
Before or after overhaul, a Mitsubishi or Hyundai vehicle may exhibit a shudder or slip while being driven in reverse.
Before or after overhaul, a Mitsubishi or Hyundai vehicle may go to neutral while taking off in 1st gear or while making a 2-1 downshift during a stop.
March 2008 Issue
Issue Summary:
After overhaul, a 5R55W transmission has delayed engagements on garage shifts and possibly a flared 2-3 shift.
Explorer and Mountaineer models equipped with the 5R55W/S may exhibit a ticking or rattling noise coming from the bellhousing.
After overhaul, vehicles equipped with the 5R55W/S may exhibit a metallic ticking noise coming from the bellhousing, similar to the sound of a cracked flex plate or flywheel.
Vehicles equipped with the 4R44E transmission may exhibit a flare on the 2-3 upshift before or after overhaul.
On 2000-and-up Ford vehicles equipped with AX4S, AX4N or 4F50N transmissions, filling the transmission with fluid may be difficult.
A 2004-and-up vehicle equipped with the 4F50N transaxle may exhibit no movement in either forward or reverse range.
