6T30 Solenoid Kit 2010-2012, new and ready to install. Fits the 6T30. Ships fast from the USA.
If your 2011-2012 Cruze, 2010-2012 Equinox or Terrain, or another small GM front driver with a 6T30 or 6T40 is flaring between gears, losing reverse, or setting a pressure control solenoid code, this is the set of parts that lives at the center of that complaint. It is a new kit of seven solenoids built for first-generation (Gen 1) 6T30 and 6T40 control modules, so you can rebuild the solenoid side of the TEHCM instead of buying a complete module.
The 6T30 and 6T40 have no bands. Every shift is a hand-off between two clutches, and the transmission computer times that hand-off with six variable pressure control solenoids and one on/off shift solenoid mounted to the TEHCM. The line pressure solenoid sets overall pressure, PCS2 through PCS5 each feed one clutch regulator valve, the TCC solenoid controls converter lockup, and the shift solenoid steers oil through the clutch select valve. On a Gen 1 unit, line pressure, PCS2 and PCS3 are normally high, while TCC, PCS4 and PCS5 are normally low. A solenoid that sticks or drifts out of range does not fail politely; the clutch it feeds either drags or slips and the computer logs it.
Check fluid level first, hot and at the level set plug, because a low 6T30 produces most of the same complaints. Then pull the TEHCM and measure each solenoid off the module: the pressure control solenoids should read 3-5 ohms and the shift solenoid 16-20 ohms. Gen 1 units also carry pressure switches in the module, and Transmission Digest traced a 1-2 neutral drop on a 2011 Cruze 1.8L Gen 1 unit to a damaged filter plate and the pressure switch 2 circuit, not a solenoid. GM also warns in PI0670A not to condemn controls on a Gen 1 P0776 until the 3-5-R clutch piston has been checked. Our 6T40 shift solenoid symptoms and testing guide walks through the ohm checks, and 6T40 common problems and fixes covers the 3-5-R wave plate failure that often looks like a pressure problem.
The listing names 2011-2012 Cruze 1.4L and 1.8L, 2010-2012 Equinox and Terrain 2.4L, 2008-2012 Malibu 2.4L, 2011-2012 Regal, 2010-2012 LaCrosse, 2012 Verano and late-2000s Aura and Vue 2.4L applications. Several V6 trims of those nameplates were built with the larger 6T70 family instead, and this kit is not for those. The deciding check is the TEHCM itself: the eighth digit on the module label reads 1, 2 or 3 on Gen 1. If yours reads B, C or D, you have Gen 2, the PCS2 and PCS5 solenoids work in reverse and sit in different spots, and you need the Gen 2-pattern 6T30 solenoid kit instead. GM kept some 2012 Cruze 1.8L units on Gen 1 after the changeover, so a 2012 model year alone does not settle it. If you are unsure, send us your year and VIN or a photo of the TEHCM label. You can also browse parts for every unit we stock from the shop by transmission page.
If the valve body bores are worn, solenoids alone will not cure a flare; the 6T30 valve body is the next step, and on a unit with damaged clutches plan for a 6T40E master rebuild kit at the same time.
| Fits | 6T30 2010-2012 |
| Part type | Solenoid Kit |
| Condition | New |
| 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.
Read the eighth digit on the TEHCM label. 1, 2 or 3 means Gen 1 and this kit fits. B, C or D means Gen 2, which uses different PCS2 and PCS5 solenoids, so order the Gen 2-pattern kit instead.
Possibly. GM kept some 2012 Cruze 1.8L units on Gen 1 controls after the Gen 2 changeover, so check the TEHCM eighth digit rather than going by model year. Send us the year and VIN if you want us to confirm.
Seven new solenoids: the line pressure, PCS2, PCS3, PCS4, PCS5 and TCC pressure control solenoids plus the on/off shift solenoid. The TEHCM electronics and Gen 1 pressure switches are not included.
Yes. Clear the transmission adapts with a capable scan tool after installation, then drive through normal shifts so the computer can relearn clutch fill times.
Dexron VI. Check and set the level hot at the level set plug after the repair, since an incorrect level causes the same flares and harsh shifts a bad solenoid does.
