62TE overheat discoloring: A brand new issue
Just when you might think you’ve seen everything that can happen to a transmission, Bob Perry from Fischer Transmissions uncovered what might be a brand-new issue. In this case, the car was a 2015 Pro Master with a 62TE transmission that was in failsafe with Code P0883 for TCM Power Input High. This means the
What to do when the right fault codes aren’t set
In this situation, we replaced the transmission in a 2004 Chevrolet Trailblazer and when the owner returned for a 15-day recheck, he mentioned that he had felt a hard shift at times. During my checks I found P0748 (Pressure Control Solenoid A Electrical) stored in the PCM history along with P0455 (Evaporative Emission Control System
The simple mistake that can leave the CVT 7 unable to reverse
In this situation, a Nissan Sentra comes in with a CVT 7 transmission that can go into reverse but not drive. The unit was disassembled only to find a snapped off sun gear in the low clutch hub (figure 1). After a new clutch hub was located, the unit was repaired and reassembled. Once it
Dealing with GM 6L series rebuild issues
During a rebuild of a GM 6L80 transmission, while the valve body was being serviced, an incorrect spacer plate was accidentally used. This blocked supply pressure to the 3-5-R regulator valve which prevented the 3-5-R clutch from applying. One of the more significant changes made to the valve body for 6L80 series transmission is related
The subtle differences in repairing Ford 6F35 generations 1 and 2
Many techs are aware of Generation 1 and Generation 2 differences with the Ford 6F35 transmission. There are, however, what seem to be a couple of subtle transitional changes that may be of interest to you. Figure 1 (below) shows an early Generation 1 valve body with the shallow SSA Damper pocket using the
How to set up a Snap-on scanner for Dodge Secure Vehicle Gateway protocol
If you have tried to scan a 2018 and later Chrysler/Dodge vehicle, you may have found a notice on your scanner saying that the Secure Gateway is locked; you can only read codes and are unable to perform clearing of codes or resets. Chrysler is the first company to implement this, and others may follow
Shift pointers: 6T40 neutral drop
A 2011 1.8L Chevy Cruze showed up to the shop with a slipping generation one 6T40 transmission. Engagements were good, but on a quick initial road test it would flare to neutral when the 1-2 shift was commanded. Then it might drop in and hold second gear or shift to third gear and seem okay.
How to easily check endplays in Chrysler RFE transmissions
When building a reliable transmission for everyday drivers, it’s tempting to skip checking gear set endplay because of the factory tool cost. Often, I hear: “I feel movement, so at least I know it is not going to bind up;” or “This play feels good to the touch, so it is okay;” or “It’s not
Solving Ford 6F35 transmission fluid overheating issues
With 14 years of being on the road, the Ford 6F35 transmission has a sizeable list of issues requiring repair associated with it. Generation one units are the worst offenders as they have an additional problem to contend with: Ford no longer provides new solenoids for them. This means the hunt for good used solenoids
Deciphering the alphabet soup of shift feel
The GM 4L60 and 4L60-E transmissions have been around since 1982, so virtually everybody in the industry is familiar with their designs and how they work. However, one thing that still generates numerous technical calls and confusion is the alphabet soup of different letter codes that are stamped on the accumulator valve. What do they
Getting out of a bind: Dodge 1500 545RFE transmission repair
A 2005 Dodge 1500 using the 545RFE transmission came into Fisher Auto Transmissions in Fairfield, New Jersey. It had a combination of both a bind-up on a 3-4 shift with code P0765 for a UD Solenoid Circuit Error being set. There was a time when these transmissions would have check-balls in the valve body that
2016 Nissan Altima: What to do with a defective TCM
Nissan vehicles that produce Judder codes DTC P17F0 and/or DTC P17F1 in many cases will be a defective TCM. One sure way to know is to document and clear all codes. Then, keep the ignition on for a bit without the engine running. If the code returns, a defective TCM has been confirmed requiring a
