The Lemon IndexShift solenoid D isn't working as commanded, so the transmission may skip gears, shift harshly or stay in one gear.
Fix soon. Book a shop visit this week. Stop driving if the car slips, shakes, overheats or warns you.
Failed shift solenoid D. Then: dirty or low fluid; wiring or valve body fault.
Owners named P0766 in 6 complaints to the U.S. government, most often on the Ford Ranger.
Cars owners report it on
Complaints that name P0766, by model. Raw counts, not a failure rate: popular models get more complaints.
Years owners report it on most: 2021 Ford Ranger
The details
What P0766 means
Shift solenoid D isn't working as commanded, so the transmission may skip gears, shift harshly or stay in one gear.
Can I drive with P0766?
Fix soon. Book a shop visit this week. Stop driving if the car slips, shakes, overheats or warns you.
50% of the owner complaints that name P0766 also say the car transmission slips or shifts hard. A complaint can describe more than one problem, so this doesn't prove the code caused it.
Common causes of P0766
- Failed shift solenoid D
- Dirty or low fluid
- Wiring or valve body fault
A shop should confirm the cause with a scan and tests before replacing parts.
What owners describe
- Transmission slips or shifts hard: 50% of complaints
Share of complaints naming the code whose text also mentions each problem.
Model years that report P0766 most
2021 Ford Ranger (2).
Related codes
P0765 P0761 P0760 P0770 P0758 P0775 P0756 P0776
Quick answers
What does P0766 mean?
Shift Solenoid D Performance/Stuck Off. Shift solenoid D isn't working as commanded, so the transmission may skip gears, shift harshly or stay in one gear.
Can I drive with P0766?
Fix soon. Book a shop visit this week. Stop driving if the car slips, shakes, overheats or warns you.
What causes P0766?
Failed shift solenoid D; Dirty or low fluid; Wiring or valve body fault.
Counts: NHTSA owner complaints whose text names P0766. A complaint is an owner's report, not a diagnosis. Meanings: the standard SAE J2012 definitions in our own words; manufacturer codes only where verified for that make. General information, not repair advice for your car.