P2704 code meaning
Transmission Friction Element E Apply Time Range/Performance
Powertrain system Generic code P27xx codes Check engine light
What P2704 means
P2704 is stored when friction element E takes too long or too short a time to apply, judged against the speed change the controller expects for the shift. Ford bulletins tie the code directly to the E clutch. TSB 23-2376 describes F-550/F-600 trucks of model year 2022 with the 6.7L diesel and 10R140: once they have covered over 8,000 km the input shaft wears against the E clutch hub, its O-rings fail and the E clutch circuit loses pressure, so P2704 appears with P0771 and the wrench lamp; hub and O-rings are renewed. On the 2020 Transit with the 10R80, TSB 20-2185 links P2704 and P0772 to harsh engagement into drive from sticking valves. Land Rover's SSM71847 lists P2704-07 among ZF 9HP48 faults on 2014-15 Evoque and Discovery Sport.
P2704 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyWorkshop only
- Typical labor1 to 14 hours
- Clears after repairAfter a drive cycle
Symptoms of P2704
- Harsh engagement into drive or poor shift quality
- Wrench, engine or gearbox warning on
- Limp mode in a fixed gear on some gearboxes
Common causes of P2704
- Most likelyPressure loss in the E clutch circuit from worn hub or damaged O-rings
- PossibleSticking valves in the main control valve body
- PossibleTransmission control software needing an update
- Less likelyLow fluid level from a leak
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Friction element eHydraulic control unitPressure control solenoid
What each part of P2704 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 7 | Area: transmission. |
| 04 | The exact fault in that area. |
What to do next
- Note P2704 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P2704
What does P2704 mean?
P2704 means "Transmission Friction Element E Apply Time Range/Performance". P2704 is stored when friction element E takes too long or too short a time to apply, judged against the speed change the controller expects for the shift. It is a generic code, so it means the same on every make.
Is it safe to drive with P2704?
Drive gently and only to a workshop. With P2704 the car can go into limp mode (reduced power) to protect itself.
Will P2704 fail an emissions test?
Yes, it can. P2704 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P2704 to fix?
Difficulty: workshop only. A typical repair takes 1 to 14 hours of work. This is a job for a workshop.
Will P2704 clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.