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 MANUALSMERCURY2011MARINER PREMIER, 2.5 7, AWDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROLS - PINPOINT TEST JB: SECONDARY IGNITION (COP) THROUGH PINPOINT TEST KF: FAN CONTROL (FC) RELAYS - (EXCEPT DIESEL & HYBRID)PINPOINT TEST JE: INTEGRATED IGNITION COIL PACK A, B, OR C FAILUREINTRODUCTIONNOTES
2011 Mercury Mariner Premier, 2.5 7, AWD
PINPOINT TEST JE: Integrated Ignition Coil Pack A, B, or C Failure: Introduction: Notes
2011 Mercury Mariner Premier, 2.5 7, AWDSECTION Notes
NOTE:
There is additional information available on this procedure. Please copy and paste the following URL into your Internet browser: mms://multimedia.ford.com/seopts/Service_Tips/ignition3.wmv.
This pinpoint test is intended to diagnose the following:
- ignition coil packs (12029)
- ignition coil harness
- IGN START/RUN circuit to coil packs
- powertrain control module (PCM) (12A650)
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.