Ford Error Code P1747: How to Fix It
Hard 4-6 hours High Severity
Verified June 2026
- Error Code
- P1747
- Brand
- Ford
- Product Type
- automotive
- Severity
- High
- DIY Difficulty
- Hard
- Estimated Fix Time
- 4-6 hours
Ad
Tools You'll Need
- OBD2 scanner
- Socket set
- Torque wrench
- Multimeter
- Drain pans
- Funnel
- Jack and jack stands
- Safety glasses
- Nitrile gloves
How to Fix Error Code P1747
-
Safety Preparation and Diagnosis
Never work under a hot transmission as fluid temperatures can exceed 200°F and cause severe burns. -
Check Transmission Fluid Level and Condition
Low transmission fluid can cause solenoid damage. Do not drive if fluid is significantly low. -
Inspect Wiring Harness and Connectors
-
Test EPC Solenoid Resistance
Ensure the transmission is cool and the ignition is off before testing electrical components. -
Remove Transmission Pan for Solenoid Access
Transmission fluid will drain rapidly when the pan is removed. Have drain pans ready and wear safety glasses. -
Replace EPC Solenoid
Do not overtighten solenoid bolts as this can crack the valve body. Use specified torque values. -
Reassemble and Test
Use only Ford-specified transmission fluid. Wrong fluid types can cause immediate transmission damage.
Parts You May Need
EPC solenoid
Check Price on Amazon
Transmission pan gasket
Check Price on Amazon
Transmission fluid
Check Price on Amazon
Valve body gasket
Check Price on Amazon
EPC solenoid
Check Price on Amazon
Transmission pan gasket
Check Price on Amazon
Transmission fluid
Check Price on Amazon
Valve body gasket
Check Price on Amazon
EPC solenoid
Check Price on Amazon
Transmission pan gasket
Check Price on Amazon
Transmission fluid
Check Price on Amazon
Valve body gasket
Check Price on Amazon
EPC solenoid
Check Price on Amazon
Transmission pan gasket
Check Price on Amazon
Transmission fluid
Check Price on Amazon
Valve body gasket
Check Price on Amazon
EPC solenoid
Check Price on Amazon
Transmission pan gasket
Check Price on Amazon
Transmission fluid
Check Price on Amazon
Valve body gasket
Check Price on Amazon
EPC solenoid
Check Price on Amazon
Transmission pan gasket
Check Price on Amazon
Transmission fluid
Check Price on Amazon
Valve body gasket
Check Price on Amazon
Ad
When to Call a Professional
Call a professional transmission specialist if you find metal debris in the transmission pan, if multiple solenoids have failed, if the transmission is slipping or not shifting properly even after the repair, or if you're uncomfortable working with transmission components. Professional diagnosis is also recommended if other transmission codes are present alongside P1747.Frequently Asked Questions
Can I drive with Ford error code P1747?
You should not drive with P1747 as it indicates a transmission control problem that can cause severe damage. The transmission may not shift properly or could fail completely. Have it diagnosed and repaired immediately.
What causes Ford P1747 error code?
P1747 is most commonly caused by a failed EPC solenoid, damaged wiring harness, corroded connectors, low transmission fluid, or internal transmission problems. The solenoid itself is the most frequent culprit.
How much does it cost to fix P1747?
DIY repair costs $100-300 for the solenoid and fluids. Professional repair typically costs $400-800 depending on labor rates and whether additional transmission work is needed. Internal transmission damage can cost $2000-4000 to repair.
Is P1747 covered under Ford warranty?
P1747 may be covered under Ford's powertrain warranty if the vehicle is within the warranty period and mileage limits. Some Ford models had extended warranty coverage for transmission issues, so check with a Ford dealer.
How do I prevent P1747 from happening again?
Regular transmission fluid changes per Ford's maintenance schedule, avoiding aggressive driving, checking fluid levels regularly, and addressing transmission problems early can help prevent solenoid failures and P1747 codes.