Automatic transmission wont work in any gear

1999 SATURN SL2
170,000 MILES • 1.9L • 4 CYL • 2WD • AUTOMATIC
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DONCANDREW
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My car's transmission degraded very quickly. Saturday I drove it one hundred miles city and highway, and noticed slight clunk accelerating from a stop. Sunday it had a lag before shifting into reverse and drive.
Monday morning,(cold), it would not shift into any gear.
I know that these cars have valve body issues after 100K, but the valve body was replaced 22K miles ago.
I cant believe that the tranny is shot since it was running like a top two days ago.
Electric/hydraulic issue?

Thank you
Dec 6, 2016 at 6:42 PM
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SATURNTECH9
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Have you scanned it for codes yet? Sounds like you could have lost pressure from the pump.
Dec 6, 2016 at 6:53 PM
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SATURNTECH9
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When you put it in drive can you can you hear the actuators buzzing?
Dec 6, 2016 at 6:54 PM
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DONCANDREW
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I took too transmission shop and they say transmission needs to be rebuilt. I do not know what codes they read.
Would pump fail without a sound?
I would like to try a fluid flush before a transmission rebuild.
Dec 7, 2016 at 3:56 AM
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SATURNTECH9
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A flush is not going to do much if it is not moving in any gear. Can you hear the actuators buzzing when you put it in drive?
Dec 7, 2016 at 7:09 AM
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DONCANDREW
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I did not hear any buzzing when I tried all the gears. I did hear engine speed up when put car in gear.
Dec 7, 2016 at 7:47 AM
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DONCANDREW
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Codes are P0731,P0733,P0734,P0745,and P1624.
Dec 7, 2016 at 10:42 AM
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SATURNTECH9
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Have you checked for blown fuses? You should hear something when you shift into drive?
Dec 7, 2016 at 12:46 PM