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 MANUALSFORD2018EXPEDITION LIMITED, RWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 325 (ENGINE CONTROLS - PINPOINT TEST A: NO START THROUGH PINPOINT TEST DL: CYLINDER HEAD TEMPERATURE (CHT) SENSOR - (EXCEPT DIESEL & HYBRID))
2018 Ford Expedition Limited, RWD
Section 325 (Engine Controls - Pinpoint Test A: No Start Through Pinpoint Test DL: Cylinder Head Temperature (CHT) Sensor - (Except Diesel & Hybrid))
2018 Ford Expedition Limited, RWDSECTION Section 325 (Engine Controls - Pinpoint Test A: No Start Through Pinpoint Test DL: Cylinder Head Temperature (CHT) Sensor - (Except Diesel & Hybrid))
WARNING: This page does not describe the selected car, but rather 31 other vehicles, including the 2016 Lincoln Navigator, 2016 Lincoln MKZ, 2016 Lincoln MKX, 2016 Lincoln MKT, and 2016 Lincoln MKS. However, it is still accessible from the selected car via links, so may be relevant.
- Pinpoint Test A: No Start
- Pinpoint Test Aa: Auto Start Stop
- Pinpoint Test Ab: Cold Start System
- Pinpoint Test B: Powertrain Control Module (Pcm) Power Relay
- Pinpoint Test C: Reference Voltage (VREF)
- Pinpoint Test DA: Intake Air Temperature (IAT) Sensor
- Pinpoint Test Dc: Mass Airflow (MAF) Sensor
- Pinpoint Test Dd: Fuel Pressure, Fuel Rail Pressure (FRP) And Fuel Rail Pressure Temperature (FRPT) Sensors
- Pinpoint Test DF: Vehicle Speed Circuit (VSC) Check
- Pinpoint Test Dg: Knock Sensor (KS)
- Pinpoint Test Di: Direct Fuel Injection Fuel Injector
- Pinpoint Test DK: Accelerator Pedal Position (App) Sensor
- Pinpoint Test DL: Cylinder Head Temperature (CHT) Sensor
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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.