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 VARIANT/TRIMSECTION 13 (ENGINE EMISSION CONTROL - 3.0L (4V))DESCRIPTION AND OPERATIONENGINE EMISSION CONTROLEXHAUST GAS RECIRCULATION (EGR) SYSTEM
2007 Ford Fusion SEL, 2.3 Z, Standard
Exhaust Gas Recirculation (EGR) System
2007 Ford Fusion SEL, 2.3 Z, StandardSECTION Exhaust Gas Recirculation (EGR) System
WARNING: This page is about a different variant/trim than selected.
The exhaust gas recirculation (EGR) system:
- returns a small amount of exhaust gas into the engine for recombustion.
- reduces the overall combustion temperature and provides a significant reduction of oxides of nitrogen (NOx).
The EGR valve:
- is electronically controlled by the powertrain control module (PCM).
- is connected to the exhaust manifold by the EGR valve-to-exhaust manifold tube.
- controls recirculated exhaust gas flow to the intake manifold.
- monitors the flow of recirculated exhaust gases through the EGR valve-to-exhaust manifold tube.
- returns a signal to the PCM.
The exhaust manifold to EGR valve tube:
- is shorter on an all wheel drive (AWD) vehicle than on a front wheel drive (FWD) vehicle.
The amount of recirculated exhaust gas depends upon:
- engine rpm.
- intake manifold vacuum.
- exhaust back pressure.
- engine coolant temperature.
- throttle position.
The vehicle emission control information (VECI) decal:
- is located on the hood.
- lists the exhaust emission control system information.
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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.