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.
Section 1654 (Engine Controls - Pinpoint Test He: Exhaust Gas RECIRCULATION (EGR) Systems Through Pinpoint Test HZ: Natural Vacuum Leak Detection - (Except Diesel & Hybrid))
2005 Ford GTSECTION Section 1654 (Engine Controls - Pinpoint Test He: Exhaust Gas RECIRCULATION (EGR) Systems Through Pinpoint Test HZ: Natural Vacuum Leak Detection - (Except Diesel & Hybrid))
WARNING: This page does not describe the selected car, but rather 31 other vehicles, including the 2011 Mercury Milan, 2011 Mercury Mariner, 2011 Mercury Grand Marquis, 2011 Lincoln Town Car, and 2011 Lincoln Navigator L. However, it is still accessible from the selected car via links, so may be relevant.
- PINPOINT TEST HE: Exhaust Gas Recirculation (EGR) Systems
- PINPOINT TEST HF: Catalyst Efficiency Monitor and Exhaust Systems
- PINPOINT TEST HG: Positive Crankcase Ventilation (PCV) System
- PINPOINT TEST HH: Exhaust Gas Recirculation System Module (ESM)
- PINPOINT TEST HK: Variable Camshaft Timing (VCT)
- PINPOINT TEST HN: Turbocharger System
- PINPOINT TEST HP: High Pressure Fuel Delivery System
- PINPOINT TEST HU: Intake Air Systems
- PINPOINT TEST HV: Electric Cooling Fan
- PINPOINT TEST HX: Evaporative Emission (EVAP) System and Monitor
- PINPOINT TEST HZ: Natural Vacuum Leak Detection
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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.