P2733 — Pressure Control Solenoid "F" Stuck On

OBD2 code P2733 flags a problem with the automatic transmission control (pressure control solenoid "F" stuck on). Short, gentle driving to a shop is usually possible. Common culprits: valve body wear, faulty transmission speed sensor, failed shift or pressure control solenoid.

powertrain (engine/transmission)

Is it safe to drive?

Drive with caution Drive only if the transmission still shifts predictably, and avoid highway speeds. Driving with slipping or limp mode accelerates internal wear — every kilometre can add to the final repair bill.

How to diagnose with an OBD scanner

  1. Read the code and freeze frame Connect an OBD2 scanner, confirm P2733 is stored, and save the freeze frame data — it shows engine conditions when the fault was detected.
  2. Check for companion codes and TSBs Related codes often reveal the real root cause. Also check manufacturer technical service bulletins (TSB) for your make and model — many P0xxx issues have factory fixes or software updates. Search by VIN on the manufacturer site or nhtsa.gov.
  3. Inspect wiring and connectors Visually inspect the wiring harness and connectors related to the automatic transmission control for damage, corrosion, chafing or poor contact.
  4. Subsystem check Command the pressure control solenoid "F" on and off with a scanner and watch the feedback signal; then remove and inspect the mechanism for sticking before replacing it.
  5. Subsystem check Check transmission fluid level and condition — dark, burnt fluid points to internal wear.
  6. Subsystem check Read transmission-specific codes and live data (solenoid states, input/output speed) with a capable scanner.
  7. Verify the repair Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm P2733 does not return.

Approximate repair cost

Repair cost depends on which component actually failed. Typical scenarios for P2733 (parts and labor, USD, independent shop rates): Replace a shift solenoid: $300–$800; Transmission fluid service: $150–$350; Transmission rebuild or replacement: $2,500–$5,500; Valve body repair or replacement: $700–$1,500. Overall, fixing P2733 usually costs between $150 and $5,500. An accurate diagnosis before buying parts saves money — the most expensive scenario is rarely the first one to check.

Common questions

How much does it cost to fix P2733?

Replace a shift solenoid — $300–$800; Transmission fluid service — $150–$350; Transmission rebuild or replacement — $2,500–$5,500; Valve body repair or replacement — $700–$1,500. Exact cost depends on the root cause, your vehicle and local labor rates — a proper diagnosis is the cheapest first step.

Will P2733 clear itself?

Sometimes P2733 clears after a few drive cycles if the fault was intermittent — for example a loose connector or a tank of bad fuel. The underlying cause usually remains, so the code tends to return. Clear it once; if it comes back, diagnose rather than erase it repeatedly.

How do I diagnose P2733 myself?

Start with a scan: confirm P2733, save the freeze frame and note any companion codes. Then inspect the wiring and connectors related to the pressure control solenoid "F", and verify the suspect component against live data before buying parts.

What does OBD2 code P2733 mean?

OBD2 code P2733 flags a problem with the automatic transmission control (pressure control solenoid "F" stuck on). Short, gentle driving to a shop is usually possible. Common culprits: valve body wear, faulty transmission speed sensor, failed shift or pressure control solenoid.

What are the symptoms of P2733?

Drivers most often notice: shuddering at highway speed, harsh or delayed shifting, transmission stuck in one gear (limp mode), no movement in severe cases.

What does P2733 mean?

When P2733 appears on a scan, it means the control module has flagged a problem in the automatic transmission control: pressure control solenoid "F" stuck on. The fault sits in the powertrain (engine/transmission) group of the OBD2 standard.

“Stuck” means the pressure control solenoid "F" is commanded to change state but feedback shows it does not move — or moves when it should not. Typical physical reasons are carbon or dirt jamming the mechanism, welded relay contacts, or a weak actuator.

To set P2733, the control module compares live readings of the automatic transmission control against calibrated limits, usually over several drive cycles. Alongside the code it stores a freeze frame — a snapshot of rpm, load, coolant temperature and vehicle speed at the moment of failure. Reading that snapshot first saves diagnostic time.

Common symptoms of P2733

  • shuddering at highway speed
  • harsh or delayed shifting
  • transmission stuck in one gear (limp mode)
  • no movement in severe cases
  • Check Engine or transmission warning light on
  • slipping between gears

What causes P2733?

  • mechanism of the pressure control solenoid "F" jammed by carbon, dirt or corrosion
  • weak actuator motor or broken spring
  • welded relay contacts keeping the circuit permanently on
  • low or degraded transmission fluid
  • internal mechanical wear (clutches, torque converter)
  • valve body wear
  • failed shift or pressure control solenoid
  • faulty transmission speed sensor
  • wiring or connector faults in the valve body harness

How to diagnose P2733

  1. Connect an OBD2 scanner, confirm P2733 is stored, and save the freeze frame data — it shows engine conditions when the fault was detected.
  2. Related codes often reveal the real root cause. Also check manufacturer technical service bulletins (TSB) for your make and model — many P0xxx issues have factory fixes or software updates. Search by VIN on the manufacturer site or nhtsa.gov.
  3. Visually inspect the wiring harness and connectors related to the automatic transmission control for damage, corrosion, chafing or poor contact.
  4. Command the pressure control solenoid "F" on and off with a scanner and watch the feedback signal; then remove and inspect the mechanism for sticking before replacing it.
  5. Check transmission fluid level and condition — dark, burnt fluid points to internal wear.
  6. Read transmission-specific codes and live data (solenoid states, input/output speed) with a capable scanner.
  7. Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm P2733 does not return.

How to fix P2733

Start with the cheapest and most common causes before replacing expensive parts:

  • Replace a shift solenoid — $300–$800
  • Transmission fluid service — $150–$350
  • Transmission rebuild or replacement — $2,500–$5,500
  • Valve body repair or replacement — $700–$1,500

How much does it cost to fix P2733?

Repair cost depends on which component actually failed. Typical scenarios for P2733 (parts and labor, USD, independent shop rates):

  • Replace a shift solenoid: $300–$800
  • Transmission fluid service: $150–$350
  • Transmission rebuild or replacement: $2,500–$5,500
  • Valve body repair or replacement: $700–$1,500

Overall, fixing P2733 usually costs between $150 and $5,500. An accurate diagnosis before buying parts saves money — the most expensive scenario is rarely the first one to check.

Can you drive with P2733?

Drive only if the transmission still shifts predictably, and avoid highway speeds. Driving with slipping or limp mode accelerates internal wear — every kilometre can add to the final repair bill.

Related OBD2 codes