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 MANUALSFORD2007FUSION SEL, 2.3 Z, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1253 (STARTING SYSTEM)DIAGNOSIS AND TESTINGSTARTING SYSTEMSYMPTOM TABLE

2007 Ford Fusion SEL, 2.3 Z, Standard

Symptom Table

2007 Ford Fusion SEL, 2.3 Z, StandardSECTION Symptom Table

WARNING: This page is about a different car, the 2010 Mercury Milan, 2010 Lincoln MKZ, and 2010 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: For hybrid starting system diagnostics, refer to INTRODUCTION -- HYBRID .

SYMPTOM TABLE

Condition	Possible Sources	Action
The engine does not crank	Battery Battery Junction Box (BJB) fuse 5 (30A) Smart Junction Box (SJB) fuse 27 (20A) Starter motor PCM Circuitry Starter motor relay Ignition switch Anti-theft system Start diode Transmission Range (TR) sensor - automatic transmission Clutch cutoff switch - manual transmission	Go To PINPOINT TEST A .
One-Touch Integrated Start (OTIS) does not operate correctly	Circuitry PCM	Go To PINPOINT TEST B .
The engine cranks slowly	Battery Starter motor Circuitry	CARRY OUT the Starter Motor in Component Tests .
Unusual starter noise	Starter motor mounting Starter motor Incorrect starter drive engagement	Go To PINPOINT TEST C .
The starter spins but the engine does not crank	Starter motor	INSPECT the starter motor mounting and engagement. REPAIR as necessary.
-	Damaged flywheel/flexplate ring gear teeth	INSPECT the flywheel/flexplate ring gear for damaged, missing or worn teeth. REPAIR as necessary.

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.