420a transmission issues

[ktgurl87]

Ok. So I've done a couple searches and couldn't really find an answer to my problem. Someone please post a link to it if it is indeed out there. So I have this 1996 Eclipse GS. I am actually guessing on the GS part, as I don't know the difference between the GS and the RS. I think the RS is a manual transmission? I dunno... but anyway... here's my issue.

So I drove my car all over town no problems except for one wee bit of a transmission slip ONCE. Other than that, no real mechanical issues (just electrical ones ). My husband drove it to work (in Virginia, it's about an hour and fifteen minute drive) and the car just stops shifting while in drive. Before he even gets all the way to work. He was able to kind of limp along and get it in a parking space. Got it towed back home. The car will shift just find INTO drive and into reverse and all... but once you get going, it will kick the car out of gear (unless you are going in reverse, in which case it does nothing but act normally). We do have another transmission sitting in the garage which we knew to be in working order before it was removed from another car, so we swapped out both the sensors that screwed into the transmission. What else could cause this problem? Any input would be most helpful, thank you.

 

[nothingfiction]

OK, so your car is an automatic.
the drive and reverse gears work... but the actual 1-4 gears don't work?

 

[BK85]

I have the same problem. The best bet is throw the working tranny in because the bad transmission will probably have to be rebuilt. In fact I'm looking for a good used auto because at the local pull and pay they are under $200 and a rebuild can be up to a grand or better.

As for RS or GS, it was just a trim choice, they both had 420a motor and a choice of manual or auto tranny.

If your car has a rear window wiper and side skirts it is a GS.

BK85

 

[Fotowntalon]

GS were much heavier due to options as well. Most GS's will have power windows, and locks more apt to have sunroofs, the RS was just plain. If you guys know how to change transmissions i hate to try and insult you, but when was the last time you had the tranny oil changed. When you changed it any metal coming out of it. When changed did you make sure to change it to the right tranny oil? Does your OD work?

 

[darkside motors]

It sounds like limp in mode to me have it scanned and check to see if your sift valves are stuck if they are flush the trany and have your valve body cleaned

 

[ktgurl87]

we bought the car off of another guy awhile back. it was a whole pita ordeal because it took me forever to get it titled and registered because the original owner never got it titled to him when he bought it from his girlfriend. since i've had it i haven't changed the transmission fluid and filter. i had driven it to work (less than 10 minutes) everyday for like 2 weeks, then he took it to Va. and that's where it died. it'll go in reverse and work in reverse, you can put it in drive but it will kick it out if you try and go anywhere farther than the length of a driveway. it won't manually shift into first or second. i thought it might've been something electrical. i was thinking if nothing else, i can get the other transmission put in.

 

[dalesmitsu]

Change your fluid/filter, is a good start.
Here's a good link to exetend the life of the a604. Its ashift kit, I recommend auto trans cooler, with it.

TransGo Professional Industry Site

 

[darkside motors]

If its kicks it out of gear the valves are trying to work but they are not shifting all the way allowing the tran fluid to shift patterns in the valve body . so pressure is building up on the other side kicking the valve out so definitely flush the system change filters and check the magnet in the trany oil pan for metal if it looks like a fuz ball then there is big problems such as worn clutch packs witch can lead to many other issues if not resolved