this is in a 93 turbo mr2.
I have never had any grinding issues or pop out with it.
anyhow tonight I'm on it and go 3rd to 4th and 4th all it does is grind going into it which its never done before. So i pulled it out and try puttin it back in and let the clutch out quick and still it grinds real bad and the shifter pops out.
Went and tested it a couple times doing 3rd to 4th at just regular speeds and it would grind and pop out and if i held the shifter fully in 4th it would still grind and not go into the gear.
I jacked the car up to check and watch the shifting and everything looked fine, cables are good, everything is straight and not loose or bent from what i can tell.
The only way i can get it into 4th is if i shift in and then let the rpm's come below 3000 and slowly let teh clutch out, then its good to go, it doesn't pop out or grind at all.
I was thinking a bent fork but am not too sure. Any ideas?

Thanks for you help,

Mike

 

Synchro is damaged and the ring for it is damaged would be my first guess. DO you cruise with your hand on the shifter? That can cause wear on things. I would recomend pulling the trany out, take it apart and find out what is damaged and replace it.

 

you could also have a bad shift cable/worn shifter bushings.

what's up, Ross? been a minute!

 

my guess is the dog teeth on the synchro as well


you could give some GM Syncromesh a shot, ive seen it clear up lots of problems like this