P2071 on 2011-2016 Chevrolet Cruze — Intake Manifold Tuning (IMT) Valve Stuck Closed
1 vehicles · 1 makes · $100-$800 repair
How to diagnose and fix P2071: most-reported vehicles
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Chevrolet Cruze · 2011–2016
The intake manifold on the 1.4T Cruze has variable-length intake runners controlled by an internal flap actuator. The actuator motor fails or the runner flaps stick due to carbon buildup and oil contamination (especially when the PCV valve cover has also failed). When the runners stick open or closed, the engine loses low-end torque, idles rough, and throws a check engine light. The plastic runner flap pivots can also break, sending debris into the intake port and potentially the cylinder.
Common Symptoms
- Check engine light with intake manifold codes
- Loss of low-end torque and sluggish acceleration
- Rough idle
- Engine hesitation during acceleration
- Rattling noise from intake manifold area
How to Fix
Clean the intake manifold runner flaps with throttle body cleaner and check the actuator motor for proper operation ($100-$200 for cleaning). If the actuator motor has failed, replacement costs $80-$200 for the part and 1-2 hours of labor. If the runner flaps are broken or cracked, the entire intake manifold assembly must be replaced ($200-$400 for parts, $200-$400 labor). Address any PCV valve cover failures first, as oil contamination from a failed PCV system accelerates carbon buildup on the runner flaps.
Sources for this issue (1)
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P2071 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P2071 mean?
P2071 stands for "Intake Manifold Tuning (IMT) Valve Stuck Closed." This code means the engine computer detected that the intake manifold tuning (IMT) valve is stuck in the closed position. The IMT valve changes the effective intake manifold geometry to optimize airflow and torque across the RPM range. When stuck closed, the engine cannot achieve the intended airflow tuning, which may reduce power (especially at higher RPM) and trigger a check engine light. It is generally not an urgent safety issue but should be addressed for proper performance and emissions.
What are the most common causes of P2071?
The most common causes of P2071 are: Carbon buildup binding the IMT valve closed, Stuck or seized IMT valve actuator, Failed vacuum actuator or leaking/blocked vacuum line, Broken valve linkage, Faulty IMT valve position sensor, Wiring or connector fault to the IMT solenoid. The specific cause varies by vehicle.
How much does it cost to fix P2071?
Repair costs for P2071 range from $100 to $800, depending on the vehicle and root cause.
Which vehicles are affected by P2071?
Au7o has documented P2071 across 1 vehicle models from 1 manufacturers: Chevrolet.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.