1. What is P2714 in Chevrolet Silverado?

The P2714 OBD-II code stands for Transmission Pressure Control Solenoid B Circuit Performance/Stuck Off. For the Chevrolet Silverado 1500 (2016-2024)—America’s top-selling full-size pickup—this code targets the 6L80 6-speed automatic transmission, standard in 5.3L EcoTec3 V8, 6.2L EcoTec3 V8, and 3.0L Duramax-equipped LT, LTZ, and High Country trims.

The pressure control solenoid B regulates hydraulic pressure for 3rd/4th gear shifts and torque converter lockup—critical for smooth towing (max 13,300 lbs for 6.2L 4x4 models) and highway efficiency. P2714 triggers when the Silverado’s PCM (Powertrain Control Module) detects the solenoid can’t maintain target pressure (25–50 psi for 6L80), signaling a faulty solenoid, corroded wiring, or clogged valve body.

Silverado Specific Note: This code is widespread in 2018-2022 Silverado 1500s with the 6L80, per Chevrolet TSB 19-NA-123. The 6L80’s solenoid B (OEM #12680772) is prone to wear from heavy towing and old DEXRON-VI fluid, which breaks down and clogs the solenoid’s internal valve.

2. Common Causes of P2714 in 2016-2024 Silverado

P2714 in Silverado 1500 6L80 models stems from transmission component wear or electrical issues—below are real-world cases diagnosed with the ICARZONE MA200 V6:

• Faulty Pressure Control Solenoid B (2020 Silverado LTZ 5.3L): An LTZ owner with 82,000 miles reported harsh 3rd-gear shifts. The MA200 V6’s Transmission Solenoid Pressure Test showed 12 psi (normal: 25–50 psi) for solenoid B. Replacing it with OEM #12680772 (per TSB 19-NA-123) fixed P2714.
• Corroded Solenoid Wiring (2019 Silverado LT 5.3L): An LT owner’s P2714 reappeared after solenoid replacement. The MA200 V6’s Circuit Continuity Test found 16Ω resistance (normal: <0.5Ω) in the solenoid harness. Road salt corroded the connector—cleaning with electrical contact cleaner (#CRC 05110) resolved the issue.
• Clogged Valve Body (2017 Silverado High Country 6.2L): A High Country owner’s P2714 was paired with delayed shifts. The MA200 V6’s Fluid Flow Test revealed restricted pressure to solenoid B. Carbon deposits from old DEXRON-VI fluid clogged the valve body—cleaning with #ATP AT-205 fixed the code.
• Outdated PCM Calibration (2021 Silverado Custom 3.0L Duramax): A Custom owner’s P2714 appeared after a battery jump. The MA200 V6’s PCM Version Check showed outdated firmware (v1.7.0). Updating to v2.4.0 via MA200 V6’s "Chevy Transmission Calibration" tool fixed solenoid control logic.

3. Key Symptoms of P2714 in Silverado 1500 6L80

P2714 symptoms in the Silverado are transmission-focused—watch for these signs that affect driving comfort and towing safety:

4. Silverado Trims/Transmissions Prone to P2714

Chevrolet service data highlights these 2016-2024 Silverado 1500 configurations with the highest P2714 occurrence rates (all paired with the 6L80 transmission):

5. Diagnose P2714 with ICARZONE MA200 V6

Diagnose P2714 in your Silverado 1500 6L80 accurately with the MA200 V6’s Chevy-specific transmission tools. Follow these steps (engine off, key in "ON" position):

Case Example: A 2019 Silverado LT failed Step 3 (18 psi) and Step 5 (TSB 19-NA-123 eligible). The MA200 V6’s Component Location Tool guided solenoid access (remove transmission pan). Replacing solenoid B fixed P2714—verified by test drive (smooth 3rd-4th shifts with a 5,000-lb trailer).

6. How to Fix P2714 in Silverado 1500 6L80

Resolve P2714 in your Silverado with these MA200 V6-verified solutions—tailored to the 6L80 transmission:

1. Replace Pressure Control Solenoid B (Most Common Fix for TSB 19-NA-123)

1. Confirm solenoid failure via MA200 V6’s Step 3. Raise the Silverado with jack stands (secure to frame rails) and drain transmission fluid (remove pan drain plug).
2. Remove the transmission pan (18 10mm bolts) and filter (3 bolts). Locate solenoid B: Mounted on the valve body (passenger-side, 2-pin connector—labeled "B" on the valve body).
3. Disconnect the solenoid’s electrical connector and remove the 2 mounting bolts (8mm socket). Pull the old solenoid straight up to avoid damaging the valve body.
4. Install an OEM pressure control solenoid B:
   • 2016-2020 Silverado: #12680772
   • 2021-2024 Silverado: #12699318 (updated anti-clog design)
5. Reinstall the filter, pan (replace gasket), and refill with DEXRON-VI fluid (6–7 quarts). Torque pan bolts to 18 ft-lbs.
6. Clear P2714 with MA200 V6 and perform an "Idle Relearn": Start the engine, idle for 10 minutes (no accessories), then test drive—verify smooth 3rd-4th shifts.

2. Clean Clogged Valve Body

1. Confirm valve body clogs via MA200 V6’s Step 3. Follow Step 1–2 above to remove the transmission pan and filter.
2. Remove the valve body (10 10mm bolts) and inspect solenoid B’s pressure passage for black carbon deposits.
3. Clean the valve body with transmission valve body cleaner (#ATP AT-205):
   • Spray cleaner into the solenoid B passage and scrub with a soft-bristle brush.
   • Rinse with clean DEXRON-VI and dry with compressed air (low pressure).
4. Reinstall the valve body (replace gasket), filter, and pan. Refill with DEXRON-VI fluid.
5. Use MA200 V6’s Transmission Adaptation Reset to recalibrate shift pressure. Clear P2714 and test drive with a light load.

3. Update PCM Firmware (TSB 22-006)

1. Confirm outdated firmware via MA200 V6’s Step 5. Ensure the Silverado is parked in a well-ventilated area (update takes 15–20 minutes).
2. Connect the MA200 V6 to the OBD-II port and select "Chevrolet" > "Silverado 1500" > "PCM" > "Firmware Update."
3. The MA200 V6 will detect the current PCM version and download the latest update (matches TSB 22-006 specs for 6L80 transmissions).
4. Do not turn off the engine or disconnect the MA200 V6 during the update. The tool will alert you when complete.
5. Restart the engine, run the idle relearn, and clear P2714 with MA200 V6. Verify solenoid B pressure (Step 3) reads 25–50 psi.

7. P2714 Repair Costs & Maintenance Tips

P2714 repair costs for the Silverado 1500 6L80 vary by cause. Use this table to budget:

Maintenance Tips for Silverado 1500 6L80 Owners

• LT/LTZ (towing users): Replace solenoid B every 80,000 miles (preventive) — use OEM #12699318 to avoid TSB 19-NA-123 wear.
• Change transmission fluid every 60,000 miles (use only DEXRON-VI). Old fluid breaks down and clogs solenoids—triggering P2714.
• Inspect the solenoid B harness during fluid changes—secure it away from heat sources (exhaust) with zip ties to prevent wiring damage.
• Avoid "lugging" the transmission (low RPM + heavy load). Shift to a lower gear when towing >8,000 lbs to reduce solenoid strain.
• Perform the MA200 V6’s Transmission Health Check every 15,000 miles — monitor solenoid pressure and voltage to catch issues before P2714 triggers.

8. Silverado-Specific FAQs