Transmission Slip in Drive

1991 TOYOTA CAMRY
190,000 MILES • 6 CYL • AUTOMATIC
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SLIM.SLIM
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My transmission started slipping in drive and now wont move forward. Reverse is fine. It only slipped a couple days before. I checked the fluid and added about half a quart. It is way up the stick with it not running but barely on stick when checked in Neutral while running. I also noticed the ECT light on the day it started slipping.
Is this the bands? Shift solenoids? Fluid burned? Too much fluid? Not enough? Is it the ECMod?
A fuse? A vacuum hose?
Help!
Jul 11, 2016 at 5:37 PM
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MHPAUTOS
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You will have to go get a line pressure test done, get a trained transmission tech to do a hands on diagnostic on this problem. there are too many variants to give an accurate appraisal on line.
Jul 12, 2016 at 1:27 AM
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MAXIMILIAM
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This is Slim Slim"s responce,

I also wanted to mention that when atf is checked, while not running it, it appears to have too much fluid
However, when I check it while running it appears way too low.
What gives?

slim.slim
Jul 15, 2016 at 1:12 AM
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STRAILER
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If it is low running the fluid level is low, please add to the proper level and get back to us.

Best, Ken
Jul 16, 2016 at 8:45 AM
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MHPAUTOS
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Fluid drains back into pan when engine not running, this can easily be a liter more,running the engine in park will correct the level for testing.
Jul 16, 2016 at 4:10 PM