I want to drive the damn thing off a cliff, but i probably couldnt get enough speed up since i only have 3 gears.

 

 

ok i have recently purchased a 1992 lexus sc300 and i recently replaced the #1 and #2 solenoids due to no 1st or second gear in d range. also before doing the repair i noticed that 4th (O/D) was not always going into gear it would just stay in 3rd. under hard aceleration it would try to shift into 4th but then just kicking right back out again.

now after replacing the soleniods i have 1st 2nd and 3rd add in d range. but still having problems with 4th. recently i have noticed that when the weather is cool out it will shift fine. even a a good half hour drive 4th will work fine.

the fluid is kinda burnt but i am afraid that i will clog my new solenoids with old debre because it has about 218,000 miles on it and i dont know the last time the tranny fluid was flushed

please help

 

I am having the same exact problem. I have 92 sc3 with 155 and I just recently replaced all noides b/c it was not switching to 4th. But even after replacing them it still won’t switch to 4th (but like you said, when its cool outside it will switch and stay in gear for a while) something is up, there are a couple other threads like this and none help our particular problem. Maybe we have old *** lemons.

 

my o/d is constantly after the 2jzgte swap. any idea's?
before it was just randomly but it did actually switch gears. =(

 

As far as the magnets, I was thinking that they could have come loose and be clogging up the trans or torque converter somehow.. but thats not very likely. Without the magnet in it could possibly be metal shavings being cycled through the tranny and stopping it from engaging gears, but the fact that it always happens in the same manner (rpm/speed range) also means thats not very likely. The kick down cable is what regulates pressure in the valve body to determine how hard and fast it shifts. There is a thread posted by Pheonix in the ES forum about the cable that explains it pretty well. Here is a little excerpt:

So basically I was going to try adjusting mine to see if it will hold shifts longer and see if it will actually shift past that tc lockup range. Then making it shift quicker and harder to see if that helps. I just need a day off and someone a little more mechanically inclined than myself to try and solve this. It doesn't seem as though anyone here has figured it out.

I'm located in Roswell btw, just north of Atlanta. You should check out www.seloc.net to find more Lexus owners in our area. I just went to my first meet last week, lots of cool people and cars.

 

My question about the kick down cable goes to show my real knowledge about cars b/c when my bro and I replaced the noides we also adjusted the cable for better shift speeds. Shift speeds where increased and the new noides made the transition from gear to gear a lot smoother, but as stated before....still no 4th. It’s a cooler night here in GA so hopefully my ride home tonight will be a good one. (meaning maybe a couple shifts into 4th for 5-10 min, save a little gas.) We have 4 threads going now about this issue and no real definitive answers. Bumpty bump.

 

I can't believe that I just noticed this, but everyone that has had this problem on the forum seems to be from Georgia or the southeast in general, and with a 1992 SC300. Maybe we all got a defect from the same production run? What are the production dates on y'alls vehicles? I'll go out and check mine in the morning..

This is just such an odd problem and we all have the exact same symptoms! Coincidence??

 

this same thing just started happening to me last night too

 

i have same prob i have a 93

 

i am having a similar problem but when i start moving from a stop it seems like the tranny is slipping, it will rev to a lil over 1500rpm and then engage, then its been cruising in 3rd but today when i turned my ac on it went right into OD so i have OD with ac on but no OD ith the ac off is that a similar problem to you guys or is it just a solinoid

 

hmm i have a problem kinda simliar like u guys, the car would hesitate for 2-3 seconds and then it'll shift, when it finally shifts it jerks the whole car forward. the tranny fluid is fine and perfect. this problem is FREAKIN annoying because it kinda vibrates the car when its hesitating. but mine is a LS400, 93.

 

We have 4 threads going now about this issues. Bottom line, if noides are replaced and o/d still does not engage but all other gears do, can anybody think of any solutions or causes for this problem.?

 

We DID, I merged them all....People need to search and read before this kinda stuff happens.

Try different wording, or different combinations of words when searching.

 

Moderators.... Do you guys have any idea what may be causing our problems?? The more help the better, this is a big PITA for what seem like a handfull of us. (I'm callin you out O.L.T)