If the computer detects an issue with the coolant temperature sensor signal or circuit, it will set off the Check Engine Light in order to alert the driver of the problem. I used a code reader F Super and got the code P1288 Cylinder Head Temp Sensor Out Of Range. Shop online, find the best price on the right product, and have it shipped right to your door. As far as I can tell, replacing the sensor should be relatively easy. Most of the time the problem is the connection between the two wire cable and the connector. They will be able to diagnose your issue and if needed. Now slide over to the side you've got jacked up and looking from underneath your car you should see it.
The sensor is connected to a voltage divider network. Trying again, I saw a small 'K' in the screen of my multimeter which means that my resistance figures were in Kilo ohms and not ohms, as I said - does that make a difference? I guess it's just gonna have to stay a pain. One is the cylinder head temp sensor and the other being the coolant temp sensor. The Ford Expeditions have 4 O2 sensors. Stick the red lead into the signal wire side of the connector. I went ahead and made it an all day event and to the opportunity to check my bearing caps for play along with camshaft lobe integrity and clearances. Sensor 2 is in the exhaust pipe behind the resonator? They see the harshest conditions.
No trouble starting when cold. . I googled thermistor and found this: The cylinder head temperature sensor in the 2. Sorry to be a pain. Nov 02, 2015 To begin, this year fusion had some issues with overheating problems which seem to be solved by 'bleeding' the coolant system of all air. It's located on the front toward the bottom of the cylinder head on the driver's side. I personally as well as many associates have spent thousands in new parts to diagnose a problem, and it was this simple sensor.
Long cranking time One of the first symptoms commonly associated with a bad or failing cylinder head temperature sensor is a a. I personally as well as many associates have spent thousands in new parts to diagnose a problem, and it was this simple sensor. Due to the important role that the coolant head temperature sensor plays in the engine performance calculations, , it can negatively affect the performance of the vehicle. At 86 degrees Fahrenheit, the voltage should be about 4. So I save my seft lots of money and labor.
But I can tell you where they are located. If you notice that the vehicle takes a few cranks longer to start then it normally would, then this may be an indicator that the cylinder head temperature sensor may not be giving an accurate reading. I used an angle grinder to take a slot out of the 15mm socket, make sure you wear the correct protective gear when doing so. They just unscrew out normally. Some of our top Cylinder Head Temperature Sensor product brands are , and.
The temperature gauge in the dash is right in the middle of the range, where it has always been. The car reaches temperature much quicker now and drives smoother, I no longer have it drop and go into limp mode. What is the exact model of your vehicle? The will alternate which four injectors are disabled every 32 engine cycles. I can see it, and I've unplugged it with a little difficulty , but I can't get a wrench on it! It is identified as part 19 in the attached diagram. The temp sensor is located as an attachment to the water outlet adapter on the lower radiator hose.
The cylinder head temperature sensor is an important engine management sensor as the signal it provides is a critical one to engine calculations. When the engine warms up to normal operating temperature 198 degrees Fahrenheit , the voltage should be about 2. The will alternate which four injectors are disabled every 32 engine cycles. I took a long handled screwdriver and partially pried up the spring retainer. Make sure that you buy a new gasket for your new T stat. Usually it'll be 1500-2500 Ohms when the engine is cool enough to work on.
Any ideas why it won't start? Needle nose pliers do not work as well because there is not enough room around the sensor. If the temperature exceeds 126°C -258°F , the disables four fuel injectors at a time. I really don't want to remove the valve cover because I just replaced the valve cover gaskets not more than 3 months ago. The computer also suggested the thermostat could be bad, but I do not think so. If that is your motor, then it has two temp sensors. It took a lot of cleaning and some bending of the contacts on the connector before I got a reliable connection.
It is located on the left side attached to the engine block. Any help, including diagrams would be appreciated. As engine head temperature increases, resistance decreases. If you do find that this does not solve the problem, and you determine that a sensor replacement is called for, it is always helpful to provide the engine size. At the price point with a lifetime Warranty, it should be a part of regular routine maintenance - a simple fix. Engine performance issues Another symptom of a potential problem with the cylinder head temperature sensor is engine performance issues. I don't have any pictures.
Obviously a professional scan tool is always the place to start. Only the front 2 are considered oxygen sensors. If the temperature exceeds 154 °C 310°F , the disables all of the fuel injectors until the engine temperature drops below 154°C 310°F. Take the upper hose off, and there are three hex screws on the front of the ho … using facing the radiator, you don't need to touch the large bolts. At 176 degrees, the voltage should be about 2. I started the process of calibration but realised that 5 volts in gives 5 volts out no matter what the temperature of the probe Held in my hand, resting in boiling water, whatever. I have oil pressure, which is a good thing, since it saves me having to strip the motor again and will now work my way through all the other stuff.