shifter moves back and forth with gas

[pianoman]

first off its a 90 tsi awd. now when the cars in either 2gear or 4gear when you hit the gas the shifter moves back and when you let off the gas it moves foward agian. about a week ago i was cruisin in 4th gear and when i let off the gas the thing just poped right out. So after searching on here for this problem, I found someone with the same prob. the assembly where the cables attach under the hood was loose. so i tightend it up. now second still moves back and forth in relation to throttle, and i can use fourth if i only give it like 1/8 throttle and hold it. otherwise it will pop out. Now, is it a bent 3-4 shift fork, or a bent shift rod? or maby i just need some hard core cable adjusting? It almost feels like when its in fouth its riding on the end of the gear?

 

[pneumo]

Start with the easy stuff first. Check the cable adjustment closely. Check all the bolts that hold the cables and shifter. Any of those things could limit the engagement of a gear. If that doesn't fix it, then it's an internal problem. You'll have to open up the tranny and rebuild it with a new gear, hub, slider and syncro.

Driving around with it popping out of gear will wear down the gear even more.

 

[leet]

Pull the end cover off of the passenger side of the transmission, and re-torque the 2 big (30something MM) nuts that are on the end of the shafts.

 

[pneumo]

Pull the end cover off of the passenger side of the transmission, and re-torque the 2 big (30something MM) nuts that are on the end of the shafts.

That only works if the shifter is moving in 5th gear.
Plus this guy is havng trouble with 2nd and 4th, which both push on the cable to engage the gear, meaning it might (maybe) be fixed with a cable adjustment.

BTW, how's reverse?

 

[leet]

That only works if the shifter is moving in 5th gear.
Plus this guy is havng trouble with 2nd and 4th, which both push on the cable to engage the gear, meaning it might (maybe) be fixed with a cable adjustment.

BTW, how's reverse?

Good point! Try adjusting the cables and see if it helps.


Good call pneumo

 

[92awddsm]

Mine rocked in 4th and 5th before I tightened the 36 mm nuts in the tranny. Now it still rocks in 4th but not as bad.

 

[pianoman]

the assembly where the cables attach under the hood was loose. so i tightend it up. now second still moves back and forth in relation to throttle, and i can use fourth if i only give it like 1/8 throttle and hold it. otherwise it will pop out. so could understand if i have a bent shiftfork on the 3-4 gear, but, 3 works fine, and second works fine, which leads me to believe that it has something with selecting only the down gears..? does that make some sense? 1 and 3 are fine no movement or anything. only 2nd and 4th

 

[pneumo]

if you've already checked the cable adjustment, then the only thing left to do is open up the tranny and have 4th gear, hub, slider and synchro replaced. While you're in there you might want to get the rest of the tranny rebuil, too.

 

[pianoman]

yeah thats what i figured. just figured i'd check anyhow. well, i've got two other awd trans's. time to start ripping them apart and get all the useful stuff out.

 

[realhp=turbo]

Replace / check motor mounts

 

[star1469]

I agree with the motor mount suggestion. Mine (90 AWD TSi) is doing the exact same thing as yours and my motor mounts are shot. It was rocking a little a couple months ago but not popping out of gear. Now there is more play in the mounts and it pops out of 4th everytime (second is sloppy). My synchros in 1st and 2nd are also shot, so this may contribute as well. I am going to do the poly urethane motor mount fix in one of the other posts and see if this fixes it before ripping the tranny out.

 

[pianoman]

Well thanks everyone for the help and suggestions. im gonna go get some prothane mounts and post back and see what happens. quick question if your motor mounts are in bad shape to use prothane mounts, you need motor mounts in good shape anyhow correct?

 

[pneumo]

You just need the front MM to be in half decent condition. The front MM is an insert that fits around the stock mount. The other three mounts are completely replaced by the Prothane mount.

 

[pianoman]

well I popped my hood today just looking around making sure no new leaks have sprung, and to my suprise the two bolts that hold the motor mount to the transmission were not there so since i didn't have them i called mitsu and ordered some. Then I was on my way to AMS to go get some poly motor mounts, when the last 1/4 way there my tranny started acting funny, It had problems moving side to side, it grinded really hard upshifting from first into second, but it was fine going from 3rd to 2nd. then it made some sounds that sounded like a whistle and a zipper at the same time. then it felt like i ran somthing over 4 times in the center of my car. SOOOOOO.... i got to ams, got the poly mounts, and as i left, if you accelerated in first gear, it felt really loose, like in the transmission. so i limp the car 45min home driving as slow as i can and accelerating as slow as i could. i get to the garage. me and my cousin take off the transmission and the transfer case. Well we went to drain the transfer case and a few ounces of metal sludge came out i ran my magnet over it and it practiclly grabbed it all. Then we pulled apart the transmission. everything looked good, except for one bearing that sits at the bottom of one of the gear assemblys, I can't remeber if it was 1-2 or 3-4 but its the last bearing assembly all the way at the bottom. it just exploded, I'll post a picture of it tonight, the little bearing pecises were all over. so we inspected the rest of the schynos and gears, and all the rest of the bearings, and the cases and the diff's, the teeth of the gears, everything. It all looks fine, infact it looks like its been rebuilt before. the rails look good and the forks look good. So, im gonna pull apart my other trans and use that bearing. Do you know, since my trans has open diff's, if I can swap the limited slip diffs out of my other awd trans and put it in this one???? thanks, will post a pic of the destoyed bearing tonight.

 

[realhp=turbo]

Dude my tranny exploded not to long ago and turns out that it was my spyder gears had failed. It literally blew the case in half. Ive never seen a tranny come apart like that before. I know for a fact though that Fitz wrecking in woodinville has a '90 awd tranny in stock cause they tried to sell it to me. I had to take it back since mine is a GST. but I did find a plethera of dsm parts in the area. But Im not telling were it is then everyone will go raid my stash. I dont know if you can do what you asked though. I suppose if the casing is okay and you clean everything impecibly, you could probably get away with putting it back together. Good luck!

 

[pianoman]

i mean as far as stock goes, i can't see there being much of a diffrence, I was surprised when i bought this one that it didn't have lsd. I dunno, maby i'll just keep the open diff's its already awd, so tractions really not an issue, and since im not making ungodly amounts of horse power yet, i'll take a tad of tire slip as oppsed to a broken rear axles or drivetrain parts for that matter.