5R110W Pressure Control Solenoid 2003, new and ready to install. Fits the 5R110W. Ships fast from the USA.
If your 2003 Super Duty or Excursion with the 5R110W TorqShift bangs into gear, slips on every upshift, or sets a pressure control code, the line pressure solenoid is one of the first parts to check. This listing is a new 5R110W pressure control solenoid for the 2003 model year, the first year the TorqShift went into these trucks behind the 6.0L Power Stroke.
Ford calls the hydraulic unit under the pan a solenoid body because, apart from the manual valve and a relief ball, it has no shift valves. Seven variable-force solenoids run the whole transmission. This one, labeled PC-A (also called EPC), sets main line pressure for every clutch. It is inversely proportional: at 0 amps it delivers maximum pressure, and the PCM adds current to bring pressure down. That is why a PC-A that loses its signal usually produces hard, firm shifts rather than no drive at all, while a sticking valve inside the snout can leave pressure low and let clutches slip.
Start with the electrical side. On a 6.0L truck, Transmission Digest documented a 2005 F-350 that logged a string of pressure control solenoid faults where the real cause was diesel from a leaking water-in-fuel sensor wicking up the harness into the PCM. Look at the harness and connectors before you condemn a solenoid. Then pull the pan and the solenoid body. All seven solenoids should read about 4.5 ohms, and the PC-A is the one with the ID marks centered on the snout and a stepped back. A solenoid can pass the ohm test and still have a stuck valve, so check that the valve shuttles freely. Our 5R110 shift solenoid testing guide walks through the full bench check and the code table.
This solenoid is listed for the 2003 5R110W. In 2003 that means the 6.0L Power Stroke Super Duty and Excursion trucks; 7.3L trucks of that year used the older 4R100 and do not take this part. The 2003 solenoid body is an early design that carried pressure switches, which Ford deleted in late 2004, so solenoid bodies changed during this run. Match the snout markings, connector and part number on your old solenoid to the photo, or send us your year and VIN and we will confirm before it ships. Browse everything for this unit on our 5R110W parts page. If you have a 2004 or later truck, compare our 5R110W pressure control solenoid listing.
If the case connector or internal harness is cracked or oil-soaked, replace it with the 5R110W internal wiring harness for 2003-2010 at the same time. If the fluid shows clutch material, the job has gone past a solenoid; see our 5R110 rebuild wear points guide and the 5R110W overhaul kit.
| Fits | 5R110W 2003 |
| Part type | Pressure Control Solenoid |
| 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.
No. 2003 Super Duty trucks with the 7.3L Power Stroke used the 4R100. This solenoid is for trucks with the 5R110W, which in 2003 came behind the 6.0L Power Stroke.
Yes. PC-A is Ford's label for the line pressure solenoid in the 5R110W, often called the EPC solenoid. It is one of the seven variable-force solenoids in the solenoid body.
The PC-A is inversely proportional, so zero current means maximum line pressure. If the PCM loses control of it, pressure tends to go high and shifts get firm. A stuck valve inside the snout can do the opposite and cause slipping.
The 5R110W was released on MERCON SP, which should not be mixed with MERCON or MERCON V. Confirm the current Ford callout for your VIN in Ford service information.
Yes. Warm the fluid to 130F and run five each of Park-Reverse, Drive-Reverse, Reverse-Drive and Neutral-Drive engagements, five seconds apart, so the PCM relearns engagement pressures.
