P1289 FORD - Cylinder Head Temperature Sensor Signal Greater Than Self-Test Range
P1289 FORD Possible Causes
- Wrong thermostat
- Engine overheated
- Low engine coolant level
- Faulty Cylinder Head Temperature (CHT) sensor
- Cylinder Head Temperature (CHT) sensor harness is open or shorted
- Cylinder Head Temperature (CHT) sensor circuit poor electrical connection
How is the P1289 FORD code repair?Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
What is the cost to diagnose the P1289 FORD code
Labor: 1.0The cost to diagnose the P1289 FORD code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
When is the code detected?The Engine Control Module (ECM) detected the cylinder head temp above or below expected values
- Engine Light ON (or Service Engine Soon Warning Light)
P1289 FORD MeaningThe Cylinder Head Temperature (CHT) Sensor is mounted into the wall of the cylinder head and is not connected to any coolant passages. The CHT sends a signal to the Powertrain Control Module (PCM) indicating the cylinder head temperature. If the temperature exceeds 126°C (-258°F), the PCM disables four fuel injectors at a time. The PCM will alternate which four injectors are disabled every 32 engine cycles. The four cylinders that are not being fuel injected act as air pumps to aid in cooling the engine. If the temperature exceeds 154 °C (310°F), the PCM disables all of the fuel injectors until the engine temperature drops below 154°C (310°F).
More InformationNeed more information on how to fix the P1289 FORD code?
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Information for specific Ford models
- P1289 1997 FORD F150
- P1289 1998 FORD F150
- P1289 1999 FORD F150
- P1289 2000 FORD F150
- P1289 2001 FORD F150
- P1289 2002 FORD F150
- P1289 2003 FORD F150
- P1289 2006 FORD FUSION
- P1289 2007 FORD FUSION
- P1289 2008 FORD FUSION
- P1289 2009 FORD FUSION
- P1289 2010 FORD FUSION
- P1289 2011 FORD FUSION
- P1289 2012 FORD FUSION