The overdrive light is flashing. The truck is running fine and shifting almost perfect. It does feel a little wierd when coming to a stop like it's down shifting a little hard. The light stops flashing and goes out if I get on it, but once I level out the speed, the light starts flashing again. What could cause this problem?
There will be a code in memory which will indicate the problem. From you saying it flashes at cruise it is most likely your torque converter is not locking up as it should.
SOURCE: 1996 TBird 4.6 auto/overdrive trans problem
Your transmission fluid contain water,thats why the colour of the fluid changed to pink.And of such the clutch is slipping causing the engine to reve up before shifting - Check transmission cooler.
SOURCE: 1992 A4LD trans problems.
Sounds like the shift kit is warn out in the transmission. The overdrive line may not be able to provide enough hydrolic pressure to engage the gears to move the truck. When you switch to regualr drive, that line is able to build the hydrolic pressure to engage the gears. At a certian speed (for the transmission, certian hydrolic pressure) there is enough pressure to engage the gears in overdrive, but go below that, and you have to start in drive again. If this is the case, there is no easy fix for that and I recomend taking it to a transmission shop to have your shift kit examined. Opening up an automatic transmission requires specalized tools, clean shop enviroment, and knowlage more then the average back yard machanic has.
SOURCE: hard shift and blinking overdrive
The blinking overdrive button is telling u that a serious fault has occurred in the electronic controls or a mechanical fault such as excess slippage is occurring.
SOURCE: overdrive light started flashing
the OD light is flashing to let u know a fault has occurred in the transmission electronic controls or that it is slipping plus other issues, go to Kragen or Autozone and ask them to run a trouble code test, it is free, post the code back here for me to look at.
SOURCE: f-350 speed/odometer not working and shifting hard
there is a speed sensor on the top of the rear differential. either the sensor is bad or it has become unplugged. when the truck doesnt know how fast it is going, the trans goes into "limp mode" to protect itself...whic causes it to shift hard and if u look you'll notice the o/d light is blinking
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