4R70W Tcc Solenoid 2000, remanufactured and ready to install. Fits the 4R70W. Ships fast from the USA.
This one is for 2000 model year 4R70W transmissions only: the 2000 F-150 and Expedition equipped with the 4R70W, the Crown Victoria, Grand Marquis and Town Car, the automatic Mustang, and the Explorer or Mountaineer with the 5.0L V8. Owners usually land here because the converter will not lock at highway speed, the vehicle shudders like it is driving over rumble strips at 45 mph, or a scan shows P0741, P0743 or P1744. The unit is remanufactured, and the product photo shows a complete valve body with the solenoid body mounted on it, so the TCC solenoid comes installed along with the two shift solenoids rather than as a single loose part.
Gear selection in this transmission is handled by SS1 and SS2 alone. The TCC solenoid shares their solenoid body but works independently: once the PCM sees a steady throttle and road speed in a higher gear, it energizes the TCC solenoid, which moves the bypass clutch control valve and applies the clutch inside the torque converter. That locks engine speed to transmission input speed, cuts heat and saves fuel. In a 2000 unit, the solenoid plugs into the 8-pin case connector Ford used from 1998 through 2008. By the time one of these trucks or cars has twenty-plus years of heat cycles on it, the solenoid seat, the O-rings and the aluminum bore around the bypass valve have all worn, which is why a complete remanufactured valve body is a practical fix for a lockup fault.
Start with the fluid, since tired Mercon V can cause shudder on its own. Unplug the 8-pin connector and measure the TCC solenoid: Sonnax gives 10-16 ohms. An open or shorted reading can also come from the internal harness or connector, so inspect the terminals for pushed-back pins. If the electrical side checks out but the converter still slips under commanded apply, a worn valve body or the converter clutch is responsible. Our Crown Victoria shift problems guide and the 4R70W solenoid testing guide lay out the checks in order.
A 2000 4R70W is the last of the pre-2001 valve bodies. Sonnax notes that the 2-3 capacity modulator valve is not used in 2001-later bodies and sells several repair kits specific to 2001-later castings, so a 2001-2003 body is not a clean drop-in for a 2000 unit. That is the reason this listing is held to a single model year. Compare the forging number below the stiffener plate and the solenoid body on your old valve body with the product photo, or send us your year and VIN to confirm. If the 2000 version does not match, our 1999 4R70W valve body and the rest of the 4R70W lineup are worth a look.
Drain the fluid, remove the pan and filter, unplug the case connector and release the valve body bolts gradually. Line the manual valve up with the detent lever as the replacement goes in and snug the bolts in sequence, finishing at the 106 in-lb Sonnax lists for plate bolts. Install a new filter and gasket and refill with Mercon V, checking the level hot. Clear codes and drive through several lockup cycles. If you find friction debris in the pan, plan on the 1998-2003 master rebuild kit, and on a towing vehicle the 4R70W transmission cooler helps keep fluid temperature down.
| Fits | 4R70W 2000 |
| 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.
It is listed for 2000 only. Ford revised the valve body for 2001, and Sonnax lists several parts that fit only 2001-later castings. Send us your VIN if you are unsure which version you have.
It is included. The product photo shows the valve body with the solenoid body, TCC solenoid and shift solenoids already mounted.
It is a torque converter clutch performance code, set when commanded lockup does not produce the expected result. Sonnax lists bypass clutch control valve bore wear as one cause along with P0741 and P1741.
Unplug the 8-pin case connector and measure across the TCC terminals. Sonnax lists 10-16 ohms as normal; anything open or shorted points at the solenoid or harness.
Clear codes and drive through several warm lockup cycles so the PCM adapts. No special programming is required on a 2000 model.
