4R70W Tcc Solenoid 2009, new and ready to install. Fits the 4R70W. Ships fast from the USA.
The last years of Ford's four-speed rear-drive automatic used a different solenoid package from the 2001-2008 units, and that is exactly where buyers get tripped up. This listing is a new three-piece solenoid set for 2009 and later 4R70W and 4R75W transmissions: one dual shift solenoid assembly, one EPC (pressure control) solenoid and one TCC (lockup) solenoid. The listing references the F-150. If your 2009-on Ford shudders when the converter tries to lock, revs high on the highway, sets converter or solenoid codes, or shifts erratically, this set replaces all three actuators on the valve body at once instead of one at a time.
The gear logic did not change: SS1/A and SS2/B are both on in first, both off in second, SS2/B alone in third and both on again in fourth, per Sonnax's application chart. The EPC solenoid controls line pressure, and the TCC solenoid sends signal oil that applies the converter clutch whenever the PCM commands it. What changed for 2009 is the packaging. Sonnax notes that 2009-later valve bodies use solenoids that connect to a soft wire harness, while 2001-2008 units plug into a molded lead frame. The solenoids in this set are the 2009-on style shown in the photo.
Check fluid level and condition first; dark, burnt Mercon V can cause shudder with good solenoids. Then measure resistance at the case connector: Sonnax lists 20-30 ohms per shift solenoid, 10-16 ohms for TCC and 2-5 ohms for EPC. Keep in mind that a circuit code includes the wiring and connector, not just the solenoid, and on these years the soft harness itself can chafe. Our 4R70W shift solenoid guide walks through the tests, and the Crown Victoria common problems guide covers the lockup and shift faults seen on the police and fleet cars that ran this transmission late.
This set is listed for 2009-on 4R70W and 4R75W units. It is not the part for a 2005-2008 transmission with the molded lead frame; those take the 2005-2008 4R70W solenoid set. Before ordering, pull the pan and look at how your solenoids connect: individual pigtails on a wire harness mean this set, while a molded plastic lead frame means the earlier style. If in doubt, send us your year and VIN and we will confirm. See the full range on the 4R70W collection page.
If line pressure stays low with a new EPC solenoid, Transmission Digest traced that complaint to EPC oil leaking past a worn pressure regulator bore into the boost circuit; the Sonnax boost valve and sleeve kit is the repair. A noisy pump that cannot build pressure calls for the 4R70W pump.
| Fits | 4R70W 2009 |
| Part type | Tcc Solenoid |
| Condition | New |
| Brand | OEM |
| Reference | F150 |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
Three new solenoids: a dual shift solenoid assembly, an EPC pressure control solenoid and a TCC lockup solenoid for 2009-on units. No filter or gasket is included.
No. 2001-2008 units use solenoids that plug into a molded lead frame. This set is the 2009-on soft wire harness style. Use our 2005-2008 set or send us your VIN.
On a high-mileage unit it usually makes sense. The pan is already off, all three wear the same way, and a tired EPC solenoid can cause shudder or soft shifts that look like a TCC failure.
Sonnax lists 20-30 ohms for each shift solenoid, 10-16 ohms for the TCC solenoid and 2-5 ohms for the EPC solenoid. Also check the harness and connector.
Mercon V ATF. Ford lists Mercon V for the 4R70W and 4R75W and advises against additives or treatments.
