wildwagonz Posted October 13, 2009 Share Posted October 13, 2009 So I have a problem I have never encountered while working on any Soob 4eat.... Car is a 97 Legacy Gt sedan, 119,000 miles. When the car is cold after just starting (even if you let it sit for a minute or two) you shift into drive and take off and the car absolutely will not shift out of 1st gear. NO slips shutters or anything just wont shift out of 1st period, doesn't matter of the gearshift position. Pull over and let the car get up to operating temp (good ten minutes or so) and the transmission is fine, shifts right up through the gears flawlessly with no slips, glitches or anything. ATF oil temp light did flash after shutting the car off and restarting and I got 16 flashes I believe. IF the car is warm and you shut it off and re start there is no flashes of the ATF light....everything acts as usual. This is extremely strange to me, the car is in the garage now with the transmission pan off, everything under there looks normal, does anyone have any idea what could cause this? clueless ~Tim Quote Link to comment Share on other sites More sharing options...
john in KY Posted October 13, 2009 Share Posted October 13, 2009 Drop the pan and replace the ATF temperature sensor. Quote Link to comment Share on other sites More sharing options...
wildwagonz Posted October 13, 2009 Author Share Posted October 13, 2009 I still have the pan down, I was thinking it could be that, but I thought that only effected the 3rd to 4th shift....... I will replace it anyways, Anything else I should check or replace while I am under there.... I just dont understand this thing, it shifts like brand new EVERYTIME once it is warmed up Whats the procedure for checking the ATF oil temp codes, I searched and came up with gound out a pin #5 I think it was then do the whole shift through gears and press gas pedal....is that right? Thanks Quote Link to comment Share on other sites More sharing options...
Log1call Posted October 13, 2009 Share Posted October 13, 2009 As far as I know the temp sensor effects top and T.C. lockup and takes measures to cool the fluid if it gets too hot. I don't think it will effect the lower gears. I'd be suspecting a valve sticking in the valve body. That is relatively common to cause these symptoms. It only takes a tiny speck of dirt or rust to make the valve jamb, then as the aluminium warms it expands at three times the rate of the steel valve and comes free. Since you have it half off I'd take the valve body off and strip and clean it. Get a diagram because there are some small ball type valves in there that sit in passages and it's tricky to figure where they go if they fall out. You can figure it by looking at the thin steel plate that goes between the two parts of the valve assembly and there will be marks where the balls have run and sat. I've done it before without a diagram. Strip it, clean it, make sure every valve slides freely and put it back together and I'll bet the problem is gone. If the gaskets look old it is safe to leave them out... lots of trans specialists do that because the gaskets can shrink and loosen in service and cause leaks. I leave them out(on the advice of a trans specialist) and have never had a problem. Quote Link to comment Share on other sites More sharing options...
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