Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSMERCURY2009MOUNTAINEER 4.6 8, RWDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - PINPOINT TEST HH: EXHAUST GAS RECIRCULATION SYSTEM MODULE (ESM) THROUGH PINPOINT TEST JE: INTEGRATED IGNITION COIL PACK A, B, OR C FAILURE - (EXCEPT DIESEL & HYBRID)PINPOINT TEST HU: INTAKE AIR SYSTEMSINTRODUCTIONINTAKE AIR SYSTEM

2009 Mercury Mountaineer 4.6 8, RWD

Intake Air System

2009 Mercury Mountaineer 4.6 8, RWDSECTION Intake Air System

IMRCM VOLTAGE VALUES

VEHICLE	IMRC OFF	IMRC ON
Focus, 2.0L	0	5
F-150, 3V, 4.6L	5	0
All Others	2.5	0

Fig 1: Intake Manifold Runner Control (IMRC) Actuator Connector

G06054026

Courtesy of FORD MOTOR CO.

For most vehicles the IMRCM is integrated into the IMRC connector.

Fig 2: Intake Manifold Runner Control Monitor (IMRCM) Sensor Connector

G06054027

Courtesy of FORD MOTOR CO.

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.