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Location of CHT sensor

Where is the cylinder head temp sensor on a 2005 5.4L ford expedition

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It is located at the back of the passenger side cylinder head close to where the intake manifold and head meet.It will have a YE/LG and GY/RD wires to it.

Posted on May 24, 2009


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4.6 L. V8 Triton. Where is the CHT sensor located?

Cylinder Head Temperature (CHT) Sensor -4.6L and 5.4L Removal
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Diagnostic code P1290 means what? I can not find it anywhere. Please help Thank you

P1290 Ford
P1290 Ford - Cylinder Head Temperature Sensor Signal Less Than Self-Test Range

Repair Importance Level: 3/3

Repair Difficulty Level: 3/3 What does this mean?

Forum Code

Possible causes

- Wrong thermostat

- Not at operating range

- 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

What does this mean?

When is the code detected?

The Engine Control Module (ECM) detected the cylinder head temp below expected values

Possible symptoms

- Engine Light ON (or Service Engine Soon Warning Light)

P1290 Ford Description

The 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).

Read more:

Aug 11, 2015 | Cars & Trucks

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Radiator sensor

it doesnt have one you will need to check the thermostat and CHT ( cylinder head temp )

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2001 Excursion 6.8 V10, hard start, high idle, code P1288 KOEO, and KOER, no memory codes, with temp gauge in normal range scan data reads 20 deg F, suspect CHT sensors looking for sensor location.

CHT -cylinder head temperature sensor located under the intake have to remove intake manifold to replace sensor its in the cylinder head.

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P1289 code ford expedition

P1289-- Cylinder Head Temperature (CHT)
Sensor Circuit High Input

If sensor voltage is above 4.6V, key on eng off
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1 Answer

Wher is the ect located on 2004 f150 5.4 triton p0119 code came up autozone said it was the ect but i cant find where its located

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Can not find the location of the CHT sensor for a 2001 ford expedtion please help find

CHT- Cylinder Head Temperature Sensor

I do not know the exact location
On my Lincoln LS, it is in the intake side of
the cyl head & not really too accessible

They are used instead of a Coolant Temp
Sensor and will also be one of 2 Fail Safes
that can occur. The other is the Throttle Body
Motor (TACM) ETC Failsafe

I wouldn't rush off to replace it,without knowing
how to test it.

I will check here in awhile & let you know if I
can shed some light on it.

Obviously a professional scan tool is always
the place to start.

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Need to located the temperature sensor on 2002 ford f-150 4.2

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How to locate the temperature sensor in my 1998 ford expedition

ECT is front of the intake on pass side, CHT is LT head(dr. side) under intake manifold....hope this is what you needed....GL

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