Automatic Overdrive problem

[AjWit]

Hello guys, good to be back in a dsm. Only problem now is, I dont have overdrive and life at 60mph is getting old. I searched the forums and it seemed like end clutches could of fixed my problem, so i went to ipt tansmissions and got a kit. The frictions were worn to nothing and the steels were warped. After the swap, when i hit the overdrive button, the car goes directly into neutral, not a single gear. Before my swap, when overdrive was on i'd have 1-3 and then it would go to neutral where 4th was. So i guess i actually made it worse even though theres new parts in there. Any idea or suggestions out there? Im stumped and would appreciate any help. 95 Talon TSi AWD

 

[ccb21]

Does your ECU support the OD funchion? just a random tought?

 

[AjWit]

this may be a stupid answer but shouldnt it already support it, let me also add, this is a stock car, no mods other than plugs and wires. i dont see why the ecu should have an overdrive issue.

 

[spydermanX98X]

TCU is what controls the transmission, ECU shouldnt be effecting that.

 

[the_mork]

Take your clutch pack back apart and start over.

I think you might be having a problem with the piston seals which are easy to tear or roll.

Did you check your transmission fluid when you were done? It may be low or you may have old and burned fluid from the last set of failing clutches.

Did you change all of the seals or just the clutches? What set of instructions did you follow

The other thing you'll need to check is whether fluid can move through the piston both ways or just one way like its supposed to, and if fluid moves both ways then you need to find a way to reseat the balls so they work as a one way valve.

What type of fluid are you using?

 

[ccb21]

TCU is what controls the transmission, ECU shouldnt be effecting that.

Thanks for the Fix haha, I was spacing... But ya the TCU, and if its stock I would asume it would be ok, But as listed below! Other ideas...

 

[AjWit]

I was thinking about maybe doing that. Taking it back apart and checking the seals again. I used the recommended fluid from the auto parts store, i believe it was ATF +4 or whatever its called, it was name brand though.

 

[pgpargin]

I know this is an old thread, but what finally fixed this? My new (junkyard) trans is doing the same thing. My old one did not have this problem.

 

[ramsack]

sounds like and end clutch problem

 

[pgpargin]

Thanks for responding. My dsm is a 16 year-old work car and it's been reliable for a $400 car. Gears 1-3 on the new trans upshift and downshift perfectly so when I saw this post of someone with a new endclutch and the same trouble I'm having, I saw the possibility of an electronic issue and thought maybe this guy could give me a quick shove in the right direction. I've decided to go to the yard where I bought my trans and get all the switches and sensors off my core just to try. If that doesn't work I'll definitely spring for the endclutch. Thanks again

 

[ramsack]

there are 3 or 4 solenoids total inside the transmission. there are 2 that shift the transmission into the 4 main speeds using different combinations of on and off and the fluid path internally from the manual valve. then there is the pressure relief solenoid. also there can optionally be a torque converter clutch lockup solenoid (i never understood why they say only the 2g had lockup. some of the 1g did too.) if your car has 1-3 perfectly, then it can't be anything but the end clutch or a problem with the valve body itself i.e. a blocked passage or stuck valve. while you're at the yard i would just pick an end clutch up as well or multiple ones and try that first. doing the end clutch is just as easier if not easier than doing the electronics, you just unbolt the end cap off the trans. also when putting one in you have to make sure the hub is all the way in all of the clutches before you put it on. also look out for the seal on the end clutch that seals to the input shaft. there are 2 different sizes. if you put the bigger size seal on a trans with the smaller shaft the end clutch WILL NOT work.

 

[pgpargin]

I appreciate your knowledge. I went to the yard where I got the transmission and just asked if I could try the endclutch off my core. He was ok with it, but since it isn't one of my regular places he doesn't know me and wants to take it off himself. I'll post the good news asap. There is a pull-a part about an hour from here where I can get a few others to try on the cheap this weekend

 

[pgpargin]

Couldn't wait for the weekend- got the one from my core yesterday and swapped them out - Overdrive works like a new one!

Thanks

 

[jkatona]

My 1992 eclipse is doing the same thing. 1,2,& 3 shift fine and 4th slips into neutral. The guys are leaning toward end clutch but others are talking about clogged fluid passages in the valve body. I wonder with mine if a tranny cleaner with new fluid and filter would solve my problem at my local oil change facility ??? Possibly a qt. of lucas as well. I don't know, what do you guys think ???

 

[the_mork]

I would almost certainly say that it isn't a problem with the valve body.

That said, if you haven't done fluid and filter in the last 20-30,000 miles then yes, do it right after you put your new end clutches in. Also if you drive your car hard and it is going to put down more power than stock (I noticed you're NT but you might still be modding) Then it might be a good idea to get a translab shift kit. The $100 for the kit isn't that fun to shell out but if it saves you from changing a tranny later then it is well worth it.

 

[ramsack]

jkatona, I would just get an end clutch, take apart the valve body, clean it, lube the valves up with fresh ATF and make sure all the valves slide freely, new filter, and new ATF. Clean out the cooler lines, too.

For erratic running, I guarantee most of the cures from putting in a shift kit are not because of the shift kit itself but because you have to remove the valve body and clean everything. This really can do wonders. Things can warp and the bores for the valves can get out of round pretty easily, making the valves stick and move slower than they should. Along with sediment from the clutches gunking things up...stuff that CAN get past the filter builds up.

 

[mitch rich]

i knowww this is a reallly old post but to pgpargin soo the new end clutch fixed your problem?

 

[jkatona]

Hello guys, good to be back in a dsm. Only problem now is, I dont have overdrive and life at 60mph is getting old. I searched the forums and it seemed like end clutches could of fixed my problem, so i went to ipt tansmissions and got a kit. The frictions were worn to nothing and the steels were warped. After the swap, when i hit the overdrive button, the car goes directly into neutral, not a single gear. Before my swap, when overdrive was on i'd have 1-3 and then it would go to neutral where 4th was. So i guess i actually made it worse even though theres new parts in there. Any idea or suggestions out there? Im stumped and would appreciate any help. 95 Talon TSi AWD

Did you change the piston seals as well as the friction plates ? If not, it won't work because the old seals get torn from overtravel and will burn up your new clutch pack.

 

[bakedgoods1312]

Same problem , I plan on fixing this today ill up date if it helps

 

[jkatona]

Same problem , I plan on fixing this today ill up date if it helps

Watch the video from the IPT Trans website or Youtube. It will do you wonders. You'll have your overdrive back at a click of the button and it's really simple. Putting the splash shield back on is the hardest part because I broke 4 rusty bolts taking it off. I removed the 2 in the front fender well with vise grips from the back side and had to drill 2 new holes and tap the 2 under the radiator. All good now and my son loves it. Good Luck and can't wait to hear your good fortune !!!