6T40 Tcc Solenoid, remanufactured and ready to install. Fits the 6T40. Ships fast from the USA.
A Cruze, Malibu, Equinox, Captiva or Regal with the 6T40 that shudders at highway cruise, will not hold converter lockup, or throws a pressure control code is the usual reason people search for a 6T40 TCC solenoid. This set gives you the TCC solenoid and the other six solenoids from the TEHCM, each with its O-rings and inlet screen, as the photo shows. At this price it is the least expensive way to renew every solenoid in the unit while you keep your factory module.
The 6T40 has no separate converter solenoid on the case. All of its electrical controls sit on the TEHCM, the combined module and solenoid assembly bolted to the valve body. The TCC pressure control solenoid is normally low, so with no current the converter clutch stays released. The module raises current to feed oil to the TCC control and regulator valves, and that controlled rise lets the clutch apply with a little slip before full lockup. The other six solenoids handle line pressure, the 1-2-3-4, 2-6, 3-5-R and R-1/4-5-6 clutches through PCS2 to PCS5, plus one on/off shift solenoid. If one has failed from debris, its neighbors have been breathing the same fluid.
Set the fluid level properly first, following ATRA Bulletin 1725, because low Dexron VI alone causes shudder and slips. On a 6T40 the fluid change capacity is about 4.0 to 6.0 liters per GM TechLink. Then compare commanded TCC pressure with converter slip during a steady cruise on a scan tool. On the bench, remove each solenoid from the TEHCM before measuring: 3 to 5 ohms for the pressure control solenoids and 16 to 20 ohms for the shift solenoid. GEARS adds a 45 psi air check through a plastic test plate to catch a solenoid that measures right but sticks. Our 6T40 solenoid symptoms guide covers each solenoid's failure pattern, and the speed sensor guide helps rule out a sensor fault that can look like converter slip.
The set is catalogued for 6T40 and 6T45 applications, including the 2009 and later Cruze 1.4L and 1.8L, 2008 and later Malibu 2.4L, 2009 and later Equinox and Terrain 2.4L, Captiva and Captiva Sport, Regal, LaCrosse, Saturn Aura and Vue, Pontiac G6 and Saab 9-4X. GEARS is clear that Gen 1 and Gen 2 units are not interchangeable, since PCS2 and PCS5 changed position and normal state. Read the eighth digit of your TEHCM ID (1, 2 or 3 for Gen 1; B, C or D for Gen 2), then send it with your year and VIN so we can confirm this set matches. Would rather bolt on one pre-assembled piece? The complete solenoid body carries all seven already installed.
| Fits | 6T40 |
| Part type | Tcc Solenoid |
| Condition | Remanufactured |
| Brand | OEM |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
No. It is a set of seven: the TCC pressure control solenoid plus the line pressure solenoid, PCS2 through PCS5 and the shift solenoid, each with O-rings and a screen.
Possibly, but it depends on generation. Check the eighth digit of the TEHCM ID: 1, 2 or 3 is Gen 1, B, C or D is Gen 2. Send that and your VIN and we will confirm before it ships.
No. These solenoids install on your existing TEHCM, so the module and its programming stay with the car. Only replace the module if its connector or circuit board is damaged.
GM TechLink lists a 6T40 fluid change at roughly 4.0 to 6.0 liters of Dexron VI. Set the final level hot at the level set plug.
Recheck the TCC regulator valve bore and the converter itself. A worn bore or a glazed converter clutch will keep shuddering even with new solenoids.
Clear the adaptive values with a scan tool, then drive normally. Shift quality settles as the module relearns over the first 10 to 15 shift cycles.
