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6T70 Governor Pressure Solenoid

$237.98
In stock • ships from the USA • qualifies for FREE shipping

6T70 Governor Pressure Solenoid, remanufactured and ready to install. Fits the 6T70. Ships fast from the USA.

Fits these transmissions
Secure Stripe checkout • free shipping over $100 • 30-day returns
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Ships from the USA
30-day returns

About this product

This listing is named as a governor pressure solenoid, but the 6T70 has no governor and no governor pressure solenoid. What you are buying is the part that actually controls shift pressure in this transaxle: the TEHCM, GM's transmission electro-hydraulic control module, which combines the solenoid body and the transmission control module in one assembly that bolts to the valve body. This one is the second-generation, steel-plate version with the angled cut-out. If your Equinox, Terrain, Malibu, Impala, LaCrosse or XTS has lost communication with the TCM, is stuck in limp mode, or keeps setting solenoid codes, this is the assembly you are replacing.

What the TEHCM does in a 6T70

The 6T70 is a clutch-to-clutch six-speed with no conventional shift valves. ATRA's 6T70 introduction lists two on/off shift solenoids and variable bleed pressure control solenoids, including the TCC solenoid, all mounted to a Bosch-built 32-bit TCM. The TCM commands each solenoid, the solenoids stroke the clutch regulator valves in the valve body, and those valves feed the clutch apply circuits. When the TEHCM fails, every shift fails with it.

Generation matters. Sonnax notes that starting with the 2013 model year GM moved the 6T70 to a Gen 2 TEHCM that deleted the four pressure switches and instead learns clutch timing by pulsing idle clutches about every 1,250 miles. Gen 1 and Gen 2 parts do not interchange, and this assembly is Gen 2.

Symptoms of a failing TEHCM

How to confirm before you buy

Rule out wiring and power first: check the 16-pin connector at the case for fluid wicking or bent terminals and verify power and ground. Then make sure the problem is electrical and not hydraulic. Sonnax documents that a worn AFL (solenoid pressure regulator) bore lowers solenoid feed pressure and can set solenoid performance codes on a perfectly good module, so a valve body problem can look like a bad TEHCM. If you are seeing P0752, P0872, P0877 or P0989, those are Gen 1 pressure switch codes, which tells you your unit is Gen 1 and this part is not the right one. Our 6T70 common problems guide and the Equinox shift diagnosis guide walk through the checks.

Fitment

The source lists Equinox 2008-2017, Malibu 2013-2015, Impala 2012-2019, Terrain 2010-2017, LaCrosse 2014-2016, Regal 2014-2017, SRX 2013-2016, XTS 2013-2019 and the Traverse, Acadia and Enclave, but that range spans both generations. As a Gen 2 assembly it is for units built with the 2013-and-later controls update; Transmission Digest reports Gen 2 parts were used selectively in 2013 and in all 2014-and-later units, so 2007-2012 vehicles will not take it. Compare the ID plate on your original TCM cover (Sonnax points to the middle number under the bar code) or send us your year and VIN before ordering. See everything we stock for this family on the 6T70/6T75 parts page.

Install notes

If debris or a worn bore was part of the failure, pair it with a replacement 6T70 valve body, and if the case is coming apart, install a new internal filter and gasket at the same time.


Specifications

Fits6T70
Part typeGovernor Pressure Solenoid
ConditionRemanufactured
BrandOEM
ShipsFrom the USA
Warranty1-year

6T70 Governor Pressure Solenoid: common questions

Is this really a governor pressure solenoid?

No. The 6T70 does not use a governor or governor pressure solenoid. This is the Gen 2 TEHCM, the solenoid body and transmission control module assembly that controls line and clutch pressure in this transaxle.

Will it fit my 2010 Equinox?

Almost certainly not. This is a Gen 2 assembly, and Gen 1 and Gen 2 TEHCM parts do not interchange. Gen 2 began in the 2013 model year and was in all 2014-and-later units. Send your VIN if you are unsure.

Does it need to be programmed?

Yes. The TCM is part of this assembly, so it has to be programmed to your vehicle with a factory-level scan tool, followed by the Service Fast Learn Adapts procedure.

My code is P0872. Is the TEHCM bad?

P0872 is one of the Gen 1 pressure switch codes. Gen 2 units have no pressure switches, so that code points to a Gen 1 transmission that needs a Gen 1 part or a switch repair, not this assembly.

What fluid should I use after installing it?

DEXRON VI only, with the level checked at 180-200 F transmission fluid temperature.


Repair guides for this job

Sources
  1. Sonnax — Under Pressure: Shift Quality and Pressure Switches in TEHCM Applications. Backs the Gen 1 pressure switch codes, the 2013 Gen 2 change that deleted pressure switches, clutch pulse learning about every 1,250 miles, no Gen 1/Gen 2 interchange, and ID by the TCU cover number. www.sonnax.com/tech_resources/215-under-pressure-shift-quality-pressure-switches-in-tehcm-applications
  2. ATRA — 6T70 Introduction, Steve Garrett. Backs the clutch-to-clutch design, the shift and pressure control solenoids, the Bosch 32-bit TEHCM, and the heat sink bracket warning. atracom.blob.core.windows.net/webinars/gm/6t70_introduction.pdf
  3. ATRA — 6T70 Product Issues and Updates, Steve Garrett. Backs TCM service programming and the Service Fast Learn Adapts procedure. atracom.blob.core.windows.net/webinars/gm/6t70_product_issues.pdf
  4. Transmission Digest — GM 6T70/75 Slips and Delays in First, Wayne Colonna. Backs selective Gen 2 use in 2013 and Gen 2 in all 2014-and-later units. www.transmissiondigest.com/gm-6t70-75-slips-and-delays-in-first/

6T70 Governor Pressure Solenoid

$237.98
In stock • ships from the USA • FREE shipping • 30-day returns

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