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trans slipping & not shifting at all

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ciezczak

Probationary Member
8
0
Jul 21, 2011
orland park, Illinois
i just bought an automatic 97 eclipse GS and the car would always slip. i would have to restart the car to shift back into first. it also doesnt shift into 2nd and reserve. I decided to change the trans fluid and now it won't shift at all.

Any ideas on what's the problem? Thanks. :)
 
Theres so many things that could fail inside a automatic trans. Probaly best to get a junkyard one replace it. Then tear this one apart and find out were it failed.
 
Sounds like it's time for a re-build. Also sounds like the perfect time to swap over to a manual! :thumb:
 
What color was the transmission fluid when you changed it? If it was dark brown, black or pink sludge looking a rebuild kit will not do any good, you will have to buy a used transmission.

It was like a semi dark brown but no sludge at all. but i did find a lot of shavings on the magnet

What color was the transmission fluid when you changed it? If it was dark brown, black or pink sludge looking a rebuild kit will not do any good, you will have to buy a used transmission.

It was like a semi dark brown but no sludge at all. but i did find a lot of shavings on the magnet:banghead:
 
What color was the transmission fluid when you changed it? If it was dark brown, black or pink sludge looking a rebuild kit will not do any good, you will have to buy a used transmission.

Why would that stop him from doing a rebuild???? care to elaborate??

As long as his transmission hasn't grenaded and cracked all over the place, he should be fine and do a rebuild on it. theres different types of rebuilds. Depending on what you need those things will get replaced.

You can rebuild an auto trans as many times as you want as long as the case its not broken.
 
I agree with above statement. Metal shavings though doesn't sound good. When I took a auto trans apart, the only parts that seemed to ever need attention were the bearings and the clutch packs. But that was a hydraulic pressure activated trans. These days they are mostly electric actuators.
 
If u have metal shavngs in your fluid (looks like pepper) then that means friction material is wearing(clutches and bands). Sludge and worn parts will not stop you from doing a rebuild. If its not shifting it can be anything.
 
Take the car to a good auto mechanic, one that specializes in performance autos. Rebuild it with stronger bands, clutches, etc so you you'll be more confident when you put your foot in it. I've seen some cars lose two-three tenths with a rebuilt auto and shift kit.
 
Well, i added more fluid because turns out i didn't have enough. i can drive in 1st still, but when i try reverse or 2nd, it slips and doesnt connect. any ideas now?
 
Well, i added more fluid because turns out i didn't have enough. i can drive in 1st still, but when i try reverse or 2nd, it slips and doesnt connect. any ideas now?

First gear and reverse are the first bands to go out in auto. You need new clutches, bands. If the transmission isn't grinding and making some kind of noise then it's most likely rebuildable.
 
First gear and reverse are the first bands to go out in auto. You need new clutches, bands. If the transmission isn't grinding and making some kind of noise then it's most likely rebuildable.

yeah there isnt any grinding at all just slipping. where would i even be able to find the bands and clutches?
 
well i was looking at the ipt website and i found a package for the end clutch. would that work? or just try to find the parts separtely?
 
A shift control solenoid is a computer controlled and electronically activated magnetic valve that allows hydraulic transmission fluid to flow into or out of a transmission shift control circuit in order to engage or disengage a particular transmission gear ratio.
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A shift control solenoid is a computer controlled and electronically activated magnetic valve that allows hydraulic transmission fluid to flow into or out of a transmission shift control circuit in order to engage or disengage a particular transmission gear ratio.
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yeah it has one. how would i check if it works properly or not?
 

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Check the solenoid for debris (metal shavings or gunk) in the screen or the channels on the side. The valve should open/close when voltage is applied I assume. There should be a certain amount of resistance to the valve as well. But it depends on the valve I believe. You may be able to find out how to test the valve online or in the manufacture manual and what the known good test values are.

It does sound like it could be worn out bands or frictions, but it should be able to get back to first gear in that scenario.

The valve body could also be the cause. Worn out valves can cause any number of shift problems.

Also have the car scanned and see if there are and codes stored in the TCM (transmission control module). Transmission codes do not always pop the CEL/MIL. You want to keep an eye out for codes with "gear ratio" in them.


When you changed the fluid did you also change the filter? (I'm not sure if the autos have a pan or not.) And whats the mileage on the transmission? One thing we see occasionally after a filter and fluid change on a high mileage (120K+) tranny is slip and sometimes outright failure (very rare).

Lastly. Ensure the proper fluid is used. There are dozens upon dozens of different fluids used in automatic transmissions. Make sure you have the correct one.

Auto transmissions are probably the most complicated bit attached to your car. If you want to know for certain the issue, take it to a reputable transmissions shop. The ATRA is an excellent source to find good transmission shops. They should be able to at least hook up to the valve body and monitor transmissions function.
 
Check the solenoid for debris (metal shavings or gunk) in the screen or the channels on the side. The valve should open/close when voltage is applied I assume. There should be a certain amount of resistance to the valve as well. But it depends on the valve I believe. You may be able to find out how to test the valve online or in the manufacture manual and what the known good test values are.

It does sound like it could be worn out bands or frictions, but it should be able to get back to first gear in that scenario.

The valve body could also be the cause. Worn out valves can cause any number of shift problems.

Also have the car scanned and see if there are and codes stored in the TCM (transmission control module). Transmission codes do not always pop the CEL/MIL. You want to keep an eye out for codes with "gear ratio" in them.


When you changed the fluid did you also change the filter? (I'm not sure if the autos have a pan or not.) And whats the mileage on the transmission? One thing we see occasionally after a filter and fluid change on a high mileage (120K+) tranny is slip and sometimes outright failure (very rare).

Lastly. Ensure the proper fluid is used. There are dozens upon dozens of different fluids used in automatic transmissions. Make sure you have the correct one.

Auto transmissions are probably the most complicated bit attached to your car. If you want to know for certain the issue, take it to a reputable transmissions shop. The ATRA is an excellent source to find good transmission shops. They should be able to at least hook up to the valve body and monitor transmissions function.

Well i asked pep boys on what transmission fluid and filter it used and flushed out the whole thing. The trans has about 160k miles on it too
 
Your probably best off finding a used tranny with low mileage on it. Or if your serious about it being reliable getting a rebuilt tranny or having yours rebuilt with beefier insides. That transmission was used in I think 4 models so you should be able to find one for $400-$800. At the point your at those are really your two options.
 
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