93 ATX 1 2 Shift!! HELP

[dar314]

I have a 93 ATX W/145K Mi I have driven it like any one how would own a SHO, Not beat but driven hard, and maintained. My trany shifts realy bad omn the 1 2 shift only when HOT. some days when it stays in the 60's and low 70's its fine, when it gets warm/hot and I use the A/C it has problem's shifting from 1 to 2 and if I am in 3rd and kick it down it will act like its in nutral... not good! I have had the car for 5 years, bought it with 65K on it and I have changed trany fluid and filter 3 times since I have owned it due to the BAD REP ATX's have.
Do I need a new trany? or could it be solenoid? Also my O/D switch will NOT work. My O/D works fine and shifts in and out fine but I can not manualy take it out of O/D? is there any connection or 2 seprate problems that a NEW or Rebuilt trany would take care of? And which would be better? Help I like my SHO but I dont like the sounds of $2000 foir a tranny!!!!

Dave in MN
93 ATX

<small>[ September 10, 2002, 11:24 AM: Message edited by: dar314 ]</small>

 

[dar314]

One more thing I found my code I took off it. #632 Transmision Control Switch Ckt. fault?? WTF is that.. Could this by my VSS? Help, this thing is driving me nuts!! How hard is it to stick a MTX in here?

Dave

<small>[ September 10, 2002, 10:45 AM: Message edited by: dar314 ]</small>

 

[projectSHO89]

Either you didn't cycle the O/D cancel switch during the alloted time of the KOER test, or the switch/circuit is bad.

Can you press the O/D cancel switch while driving and have it respond properly? If so, it was a testing error.

Steve

 

[dar314]

I press the switch and it will not disengage the O/D. What controls the O/d is it a solenoid?

Dave

<small>[ September 10, 2002, 11:25 AM: Message edited by: dar314 ]</small>

 

[Larry Bialecki]

Dave: I have a similar temp problem with the 3-2 down shift. I have a 647 code somtimes. See my series "Replacing VSS". Replacing the VSS did not help. I am going to monitor the solenoids (tranny tester) to see if they are electrically operating correctly during dynamic operation (driving). This will help seperate the problem between mechanical electrical areas. So far I have no signs of slipping or gunk in the pan. I will most likely change out the solenoids before I decide to have the tranny pulled. I will keep the forum aware of my progress.
Larry

 

[NEILL93SHO]

Interesting.. My O/D will not engage/disengage in any of the drive gears. It works but i have to be in N or R for it to work. The tranny is fine otherwise. The solenoid you talk about. Where is this and is there a way to test it..Thanks

Mike

 

[Todds93SHO]

For some reason I seem to remember reading on SHOTIMES.com about the OD button not working. When removing the shifter handle its easy to tear the wires going to the button. I've never removed my shifter handle or tranny but I'm guessing someone has before me because I can't disable the OD. not a huge deal for me, I'd rather have it working than not as I'm on the highway alot.

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