Shift Pointers: No ball, no reverse
Yoram Levy from Israel gave us a call with a 2022 Chevrolet Traverse using a 9T65 that suddenly lost reverse. He had found a check ball missing in his valve body which he points out in figure 1 (above). Figure 2, below, shows how bad the plate was where this ball passed through. GM usually
The multi-functional Clutch 1 in Nissan’s CVT, part 1
Nissan’s Hybrid RE0F02/3H CVT transmission by Jatco (JF019E) can be found in vehicles such as the Nissan Rogue and Pathfinder as well as the Infiniti QX60. It has its traction motor located where the torque converter would normally be (as you can see in Figures 1, at the top of the page, and 2, below).
Shift pointers: A 4T65-E that wants to move in Park and Neutral
When conducting ATSG seminars, as we are usually covering a specific piece of tech, we’ll often tell attendees that if they put this together wrong, they should let us know what happens. Just recently, Ricky Hodgkinson from AACTION Transmission did just that. He was kind enough to share an incident he recently had with a
Being tuned in: The value of transmission tuning
Tuning a vehicle to optimize its performance is nothing new. This customized process is used to provide fuel efficiency and improve other driveability concerns. Tuning for torque is especially desirable by diesel owners.Those who are proficient at tuning know that the transmission will need serious upgrades to survive the increased force it will receive from
Ford harsh downshifts: 6R75 2-1, 10R60 7-6
Complaints, causes and corrections for two different Ford transmissions experiencing harsh downshifts.
Ford 6R140 no engagement cold
The complaint A 2015 Ford F-250 equipped with the 6R140W transmission has just been overhauled. Shortly afterward, the transmission has begun to develop forward and reverse engagement problems when the unit is cold. As it warms up towards operating temperature, the engagement problems diminish and do not return until the next cooldown period. Trouble codes
Ford 4R70W solenoid codes set
The complaint During the overhaul process of a Ford 4R70W transmission, it was necessary to replace the hard wire frame and case connector. After repairs were completed and the technician prepared to take the vehicle for a road test, the transmission took off in a higher gear and the MIL illuminated. The PCM was scanned
Dealing with PCM fault codes on the Ford 5R110W
The complaint A 2005 Ford F350 with the 6.0 liter diesel engine and 5R110W transmission has set a P0753 “Pressure Control Solenoid A – Electrical Fault” code and a P2700 “Transmission Friction Element A – Apply Time Out Of Range” code. After a prolonged drive time, DTC P0752 “Pressure Control Solenoid A – Stuck On”
Ford FNR5 slipping or no reverse hot
The complaint A Ford vehicle equipped with the FNR5 transmission has a complaint of a severe slipping condition in reverse. As the transmission approaches normal operating temperature, reverse movement is non-existent. The cause The case is cracked behind the low reverse clutch apply piston in an obscure area. The crack can be very difficult to
How to service the Honda 10-speed transmission
With Honda’s 10-speed front wheel drive transmission (see Figure 1, above) going into its fifth year on the roads, it’s feasible that one may show up in your shop for service. (One note: this transmission does not have a typical name; it’s simply known as “the Honda 10-speed automatic transmission” in all OEM materials.) One
Shift Pointers: Reassembling GM pumps with cam failure
For the past several years, GM has used a binary positive displacement vane type pump. The compact design allows for it to be utilized in off-axis applications such as the 8L90 transmission and the third generation 6T40 transmission. Figures 1 (above) through 4 display a view of this style pump in the 6T40 applications. The
Searching for the source of an unexpected transmission fluid leak
As the installer was pumping fluid into the transmission from the right side of the vehicle, he was having a difficult time getting it full.
