SOURCE: Hello, I own a 93
The transmission is controlled by the Transmission Control Unit (TCU).
Throttle
position, rpm, and speed are input parameters to the TCU. The TCU has a
default set of shift patterns. These shift patterns change over time
based on your specific vehicle setup and driving habbits.
The
shift patterns are only slightly affected by driving habbits over many
driving cycles. But, changing the relationship between the throttle
position and the actual speed being reported by the speed sensor can
have an immediate effect on shift patterns.
While your speedo
may now be correct, the realtionship between rpm and thottle position
has not been corrected. That would take a gear change in the
differentials.
The TCU can be reset to an inital learn base line. When this is done, the TCU will instantly learn the dynamics of your setup.
Any shop with an advanced ODB scan tool can reset the the TCU. The dealer or a transmission shop would be preferable.
You really should change your differential gears as opposed to resetting the TCU
This information was posted by ftgiles here
SOURCE: I have a 1991 GMC Sierra 1500 with a 5L V-8. The
My truck had a shift problem from2nd to 3rd. I was ready to buy a solenoid package for it. ( which is what you have to buy, you can't get the solenoids by themselves, several hundred dollars) Someone recommended tranX to me. I put it in and within three days the transmission quit slipping, it's been over two years now and it hasn't missed a lick. It was a ten dollar fix, compared to $300.00 that the package was going to cost. not including any labor to install
SOURCE: 1998 gmc safari 4.3l automatic
Yes the Solenoid is attached to the valve body and if you got a defective one that means you will be having problems and delays with shifting and you might lose one of the gears like 4th or 3rd .
SOURCE: Shifting solenoids on 2002 Lancer.
For Automatic transmission
problem,click the link below:----
Automatic transmission
troubleshooting:----
http://howtobyme.blogspot.com/2011/11/automatic-transmission-will-not-go-into.html --------- http://technoanswers.blogspot.com/2012/01/automatic-transmission-shift-lever-hard.html ----------- http://schematicsdiagram.blogspot.com/2011/07/how-to-check-automatic-transmission.html -------------- AUTOMATIC TRANSMISSION FLUID AND
FILTER? http://schematicsdiagram.blogspot.com/2011/07/how-to-change-automatic-transmission.html ----------- http://schematicsdiagram.blogspot.com/2011/12/transmission-fault-light-on-car-dash.html -------- http://schematicsdiagram.blogspot.com/2012/01/transmission-shifting-problem-on-toyota.html -------- http://repairhelpcenter.blogspot.in/2012/02/transmission-slips-out-of-2nd-gear.html ----------- http://repairhelpcenter.blogspot.in/2012/02/od-light-flashing-and-transmission.html ---------- http://repairhelpcenter.blogspot.in/2012/02/transmission-fluid-leaks-near-radiator.html ---------- http://technoanswers.blogspot.in/2012/02/ford-windstar-transmission-fluid.html ------------- http://technoanswers.blogspot.in/2012/02/dodge-neon-wont-go-in-reverse.html ------------- http://technoanswers.blogspot.in/2012/02/dodge-automatic-transmission-will-not.html ---------- http://technoanswers.blogspot.in/2012/02/transmission-is-making-buzzing-noise.html ----------- This
will help. Thanks.
Automatic transmission shift lever
issues?-------
AUTOMATIC TRANSMISSION FLUID LEVEL? --
Transmission fault light on
car dash?
Transmission shifting
problem?
Transmission Slips out of 2nd gear?
OD light flashing and transmission fluid
leaking?
Why Transmission fluid leaks near radiator?
Transmission fluid leaking?
****** wont go in reverse?
Automatic transmission will not go into
reverse?
Transmission is making buzzing noise?
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