Question about 2004 Ford Crown Victoria

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Checking computer says engine coolant temp too low

Need location of coolant temp sensor on V8 and thermostat

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  • Anonymous Mar 25, 2014

    coolant level icon on showing low coolant the system is full of coolant.

  • Anonymous Mar 25, 2014

    dash icon shows low coolant level however the system is full of coolant.

  • Anonymous Mar 28, 2014

    1.9 engine

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The stat is in the upper rad hose follow the upper hose to the mtr the hose goes to the themostat housing there are two bolts holding it on look to the left of the housing you will see a sensor that is screwed into the intake manifold when you remove that sensor coolant will run out

Posted on Dec 24, 2008

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I have a 2004 Ford Explorer Sports Trac. The Check Engine light came on. My Mechanic's Reader says "Low Coolant Temp." We shut off the light. I came on again. Both times, only when driving more...


The first step is to determine whether the engine is actually running cold or if the engine computer just "thinks" it is. Your temperature gauge is controlled by the engine computer. I use an infrared thermometer directed at the base of the Engine Coolant Temp (ECT) sensor while watching the ECT sensor data on the computer to see if they match. This should be done before replacing ANY parts. You need to make sure that the ECT is not "lying" to your engine computer. Your vehicle is also equipped with a Cylinder Head Temperature (CHT) sensor to measure the the temperature at the cylinder head. (The ECT is located in the intake manifold.) These should read within 5 or 6 degrees from each other at all times. If it is determined that the sensors are all functioning properly, and the engine actually is running cold, then I would recommend getting a thermostat from the dealer. (I have had a few problems with aftermarket thermostats.)

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What your describing is either a sticking thermostat, a low coolant condition or a blown cylinder head gasket.The code is for coolant temp fault.Not always the temp sensor but it is located next to the thermostat housing.

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Location for the coolant sensor


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69d9220.jpg

Oct 19, 2009 | 1996 Jeep Grand Cherokee

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2005 chrysler 300c 5.7l v8 hemi.........over heating electric fans do not come on......however when fans are checked individually they work....the two fuses and the 3 relays check ok......made check with...


The fans are turned on by the PCM, if the PCM is not telling the fans to turn on, they won't even if everything tests fine.

2005 Chrysler 300 V8-5.7L VIN H

Coolant Temperature Sensor/Switch (For Computer): Service and Repair
ENGINE COOLANT TEMP SENSOR
REMOVAL
The Engine Coolant Temperature (ECT) sensor (3) on the 5.7L engine is located under the air conditioning compressor. It is installed into a water jacket at the front of the cylinder block.
WARNING: HOT, PRESSURIZED COOLANT CAN CAUSE INJURY BY SCALDING. COOLING SYSTEM MUST BE
PARTIALLY DRAINED BEFORE REMOVING THE COOLANT TEMPERATURE SENSOR.
1. Partially drain the cooling system.
2. Remove accessory drive belt.
3. Carefully unbolt air conditioning compressor from front of engine. Do not disconnect any A/C hoses from compressor. Temporarily support
compressor to gain access to ECT sensor (3).
4. Disconnect electrical connector (2) from sensor (3).
5. Remove sensor (3) from cylinder block.
INSTALLATION
1. Apply thread sealant to sensor threads.
2. Install ECT sensor (3) to engine.
3. Tighten sensor to 11 Nm (97.3 inch lbs.) torque.
4. Connect electrical connector (2) to ECT sensor (3).
5. Fill the cooling system.

Sep 10, 2009 | 2005 Chrysler 300

1 Answer

Temp sensor needs to be replaced


this does not mean the sensor is defective, it most likely means the engine thermostat is stuck open and the engine is not running hot enough to satisfy the computers preset temp requirements for minimum eng operating temp.

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Escort check engine light - code = P0125


this is whats going on insufficient warm up time / low engine coolant /check coolant/ leaking or stuck thermostat or faulty tep sensor

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Check engine light on - 2003 gmc envoy XL


That code represents a lower than expected reading for temperature (coolant). First thing to do is check your coolant level, as if it is low, then the sensor can not read correctly. Second, you may have a thermostat that is stuck open, allowing the coolant to cool off too much. The sensor should be mounted on top of the engine, near the thermostat housing.

May 18, 2008 | GMC 2003 Envoy XL

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