transmission fault

2009 CHEVROLET TRAVERSE
90,000 MILES • AUTOMATIC
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SAED75
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I have Chevrolet traverse 2009 with transmission problems , fault codes P0752 , 989 , 877,
I want to replace the valve body with TCM & speed sensors.
My question: is reprogramming required after installation?
Jan 3, 2016 at 10:56 AM
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ASEMASTER6371
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yes, the new tcm requires re programming.

what lead you to replace all the sensors???

Roy
Jan 3, 2016 at 11:06 AM
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SAED75
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Thanks for quick response..
I'm getting gear stuck sometimes from 2nd to 3rd..with check engine light on and fault P0752 (solenoid A stuck) problem goes if restart the car it move on normal.
Later on got other faults of 989 , 877 about oil pressure circuits.
Also delay 2-3 sec when shifting from N to D with small jump.
Do u think if replace the whole valve body should resolve it?
Jan 3, 2016 at 12:27 PM
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ASEMASTER6371
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no, the oil pressure codes concern me. it may be you have an internal failure in the front pump. I would try by changing the oil/filter and see if that makes a difference

Roy
Jan 3, 2016 at 12:35 PM
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SAED75
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Since am replacing the solenoids and valve body anyway ..will i have access to the pump ? ie ..can be checked or replaced easily if required?
Jan 3, 2016 at 12:47 PM
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ASEMASTER6371
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in order to replace the pump the transmission has to be removed, the side pan has to be removed, channell plate and then access to the pump. it is a vane style pump.

Roy
Jan 3, 2016 at 1:00 PM