Engine · important priority
Intake Manifold Runner Control (IMRC) Replacement Cost & Pricing
Replace a failed intake manifold runner control valve or actuator that optimizes airflow at different engine speeds. Failure causes rough idle, poor low-end torque, or a P2004/P2006 fault code.
Typical Intake Manifold Runner Control (IMRC) Replacement cost
$180–$580, with an average estimate of $300 before vehicle-specific adjustments.
What to expect
Difficulty: moderate. Typical labor time: 1–3 hours.
Mechanic's tip
The IMRC controls the runner flaps inside the intake manifold. Common on Ford V6 and V8 engines (3.0L, 4.6L, 5.4L). Before replacing the whole unit, check whether the plastic linkage or vacuum actuator is broken — that's a cheap fix. Carbon buildup on the flap shafts can also cause sticking; cleaning sometimes resolves the code without replacing the valve.