P0747 on Chevrolet
Pressure Control Solenoid Stuck On
P0747 on Chevrolet vehicles indicates pressure control solenoid stuck on. Au7o has documented this code across 1 Chevrolet model — most commonly on Silverado 1500. This transmission code means the pressure control solenoid 'A' is stuck in the on (or fully applied) position, or its circuit behaves as if permanently energized. This solenoid regulates hydraulic line pressure that controls clutches and shift feel inside the automatic transmission. When it stays on, line pressure can't be modulated properly, leading to harsh shifts, slipping, overheating, or the transmission being stuck in a gear or limp mode. It points to the solenoid, its wiring, or a hydraulic/contamination problem in the valve body. Typical repair costs on Chevrolet range from $300 to $6,500, depending on the specific model and root cause.
Common Causes of P0747
- •Stuck or failed pressure control solenoid
- •Dirty or contaminated transmission fluid blocking the valve
- •Debris stuck in the valve body bore
- •Shorted or chafed solenoid wiring
- •Corroded or loose solenoid connector
- •Low or degraded transmission fluid
- •Faulty transmission control module (less common)
P0747 on Chevrolet by Model
Chevrolet Silverado 1500(2 issues)
- 10L80/10L90 10-Speed Valve Body Failure — No Reverse, 'Service Transmission', and National Parts Backorder2024-2025
2024-2025 Silverado 1500 trucks with the 10-speed automatic (5.3L L84, 6.2L L87, 3.0L Duramax LZ0) are suffering stuck valve-body solenoids at very low mileage. Owners report a 'Service Transmission' or 'Service Transmission — Unable to Shift' message, violent hard downshifts, slipping, and complete loss of reverse — several describe rolling backwards down a slope or having to push the truck out of a parking space. The failure typically drops the truck into a default limp mode. NHTSA reports cite P0747 and P0700, and one owner had the valve body replaced only for the fault to return. The parts situation is a major secondary problem: owners document 50-plus days, and in several cases many months, waiting on a backordered valve body, with GM sometimes authorising a complete transmission. Complaint ODI numbers include 11752704, 11737852, 11702380, 11694872, 11674419, 11645507, 11640841, 11636547, 11632270, 11610139 (2024) and 11707111, 11675762, 11729153 (2025).
- P0700 — Transmission Control System Malfunction from Failed 6L80 TEHCM (or 4L60E Shift Solenoid)2007-2019
P0700 is not a specific fault by itself — it is an umbrella/MIL-request code the ECM stores whenever the transmission control module (TCM) detects an internal transmission problem and asks the ECM to turn on the check-engine light. On the Silverado 1500 it almost always appears alongside more specific companion codes, and the underlying failure follows two dominant, well-documented patterns depending on the transmission. On trucks with the 6L80 six-speed automatic (2007-onward 5.3L and 6.2L V8 models), the internal TEHCM (Transmission Electro-Hydraulic Control Module — GM's combined valve body, solenoids, pressure switches, and TCM in a single pan-mounted unit) develops internal circuit-board/solenoid faults from heat and fluid degradation, throwing P0700 together with codes like P0796, P0777, P0842, or P0973 and dropping the truck into limp mode. On older/base trucks with the 4L60E four-speed (4.3L/4.8L), the same P0700 is typically triggered by a failed shift solenoid (P0753/P0758) or a faulty internal mode switch. Because P0700 is a stored 'passenger' code, a scan tool that can talk to the TCM (not just a basic reader) is required to pull the specific sub-code that identifies the actual failed component.
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View P0747 across all makes →Frequently Asked Questions
What does P0747 mean on Chevrolet?▼
P0747 stands for "Pressure Control Solenoid Stuck On." This transmission code means the pressure control solenoid 'A' is stuck in the on (or fully applied) position, or its circuit behaves as if permanently energized. This solenoid regulates hydraulic line pressure that controls clutches and shift feel inside the automatic transmission. When it stays on, line pressure can't be modulated properly, leading to harsh shifts, slipping, overheating, or the transmission being stuck in a gear or limp mode. It points to the solenoid, its wiring, or a hydraulic/contamination problem in the valve body. On Chevrolet specifically, this code is documented across 1 model.
What causes P0747 on Chevrolet vehicles?▼
Common causes on Chevrolet: Stuck or failed pressure control solenoid, Dirty or contaminated transmission fluid blocking the valve, Debris stuck in the valve body bore, Shorted or chafed solenoid wiring, Corroded or loose solenoid connector. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0747 on a Chevrolet?▼
Repair costs on Chevrolet range from $300 to $6,500, depending on the specific model and root cause.
Which Chevrolet models have P0747 documented?▼
Au7o has documented P0747 on 1 Chevrolet model: Silverado 1500.