P2070 on Chevrolet: How to Diagnose & Fix
Intake Manifold Tuning (IMT) Valve Stuck Open
1 Chevrolet model · 1 documented issue · $100-$800 repair
P2070 on Chevrolet by model: symptoms, diagnosis and fix
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)
P2070 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 P2070 mean on a Chevrolet?
P2070 stands for "Intake Manifold Tuning (IMT) Valve Stuck Open." This code means the engine computer detected that the intake manifold tuning (IMT) valve is stuck in the open position. The IMT valve adjusts the intake manifold's tuning to optimize airflow and torque at different engine speeds. When it is stuck open, the engine loses the intended airflow tuning, which can reduce low-end torque or overall performance and trigger a check engine light. It is not an immediate breakdown concern but should be repaired to restore drivability and emissions compliance. On Chevrolet it is documented across 1 model: Cruze.
What are the most common causes of P2070?
The most common causes of P2070 are: Carbon buildup jamming the IMT valve open, Stuck or seized IMT valve actuator, Failed vacuum actuator or leaking 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 P2070 on a Chevrolet?
Published repair estimates on Chevrolet range from $100 to $800 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
Looking for P2070 on a different make?
View P2070 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.