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Transmission fault

Tiny
SAED75
  • MEMBER
  • 2009 CHEVROLET TRAVERSE
  • AUTOMATIC
  • 90,000 MILES
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?
Sunday, January 3rd, 2016 AT 10:56 AM

5 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Yes, the new tcm requires re programming.

What lead you to replace all the sensors?

Roy
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Sunday, January 3rd, 2016 AT 11:06 AM
Tiny
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?
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Sunday, January 3rd, 2016 AT 12:27 PM
Tiny
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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
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Sunday, January 3rd, 2016 AT 12:35 PM
Tiny
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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?
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Sunday, January 3rd, 2016 AT 12:47 PM
Tiny
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
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Sunday, January 3rd, 2016 AT 1:00 PM

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