90 grand prix w/ tranny problem

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  #1  
Old 10-14-06, 05:06 PM
backyardmech
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90 grand prix w/ tranny problem

I have a 1990 grand prix w/ a 3.1 engine and aod transmission that shifts fine until it goes to shift into 3rd. It never reaches 3rd, I have to drive it in 2nd gear. I changed the valve body but it didnt help.I have another tranny out of a 91 but the junk yard said it had to be a 90. thanks for any help in this matter.
 
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  #2  
Old 10-18-06, 06:10 AM
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Join Date: Oct 2004
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how does the fluid look? if its anything other than bright red and if it smells like anything cept clean fluid and/or smells burnt at all then its toast probably

the 91 one should work as long as it has all the same wiring connections on it


i had a GP 4T60E trans i sent to shredder, perfectly good one, no one wanted it, was a waste


good luck




Originally Posted by backyardmech
I have a 1990 grand prix w/ a 3.1 engine and aod transmission that shifts fine until it goes to shift into 3rd. It never reaches 3rd, I have to drive it in 2nd gear. I changed the valve body but it didnt help.I have another tranny out of a 91 but the junk yard said it had to be a 90. thanks for any help in this matter.
 
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