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1. Courier definition cracked#
2. Courier definition full#
3. Courier definition code#
4. Courier definition series#

When your water pump does go bad, it will often leak water. Has your belt been squeaking when you startup, or when you are on the road? That can be an indication that it is bad. Your Transit Courier’s water pump is driven by the serpentine belt attached to the engine. It’s also much more affordable and easier to get to in almost all cases.

Of these two, the thermostat fails more often than the water pump.

Courier definition full#

If the radiator overflow is full (and your radiator fan is kicking on), it is very likely that a bad thermostat or bad water pump is causing it to overheat. One of the most common reasons that your Ford Transit Courier will overheat is a bad thermostat. When the cooling system itself is bad, usually the opposite will happen. If you have a temperature gauge, you’ll notice that the temp will usually cool down when you get onto the highway and get moving into clean air. When you are hardly moving, you will notice the radiator fan not working. While going down the road the movement of air through your vehicle’s radiator will usually be enough to keep it cool, without the help of the fan. Do you have a lot of white smoke? It could indicate that you have a blown head gasket. If you aren’t finding anything with the dye, take a look at the rear exhaust. If you are losing fluid, but can’t readily see the leak, UV dye is a great tool to locate it. Make sure that you don’t take the radiator cap off when the engine is warm.Ī slow leak can be more difficult to find than a quick leak since the coolant can evaporate before it has a chance to show itself. There are a lot of places to look for a radiator leak. Here are some of the common places coolant can leak from: If there’s coolant missing, it’s either leaking externally or internally. Low coolant is the most common reason that your Transit Courier will overheat and throw P1289. If the temp values agree when the engine is ice-cold, then it is time to take a look at why your engine was overheating. It is almost always very easy to get to and replace.

Courier definition code#

If there is, repair/replace it and verify that the code has been cleared. Look for cracked, frayed, or otherwise damaged wiring. Start by checking to make sure that there are no obvious wiring issues at the sensor. If they disagree, you’ll need to replace the sensor or repair the wiring.

With the engine cold, use a scanner to compare the value of the cylinder head temperature sensor with your Transit Courier’s intake air temp sensor. Cylinder Head Temperature SensorĮstablish whether or not the cylinder head temp sensor is reporting the proper temperature. If you got P1289 immediately after starting your Transit Courier, and the engine was cold, it’s likely that the cause is sensor-related. The first thing that you need to do with P1289 is establish whether or not that CHT sensor is the problem, or if there is a cooling system problem.

Courier definition cracked#

Since replacing a head gasket or cracked head is expensive, treat p1289 like the vehicle is overheating until you can confirm that it is not. In the case of p1289, the PCM has tested the cylinder head temp sensor, and the value returned is above its theoretical range.ĭepending on what is causing p1289, there may or may not be any noticeable symptoms.

Courier definition series#

When you turn the ignition on, your vehicle’s PCM runs a series of self-test cycles. If it gets a reading that is too high, it’ll likely go into “cylinder head overtemperature protection” (which throws P1299). It gets the reading directly from the metal in the head, not the engine coolant, allowing the PCM to respond to a catastrophic cooling failure within enough time to (hopefully) save the engine from major damage. Your Transit Courier’s cylinder head temperature sensor (CHT) measures the heat in the cylinder head and increases resistance as the temperature decreases and decreases resistance as the temperature increases. Here’s the Ford-specific definition of P1289, which would apply to your Ford Transit Courier. P1289 Ford Transit Courier Definition: CHT Sensor – Signal Greater Than Self Test Range The most likely cause of P1289 is a bad cylinder head temperature sensor (CHT), but there can be other causes as well. In the case of Ford-built vehicles (such as the Ford Transit Courier), it indicates that the cylinder head temperature sensor returned a value to the powertrain control module (PCM) that was greater than the signal should be during a self-test cycle. P1289 is a manufacturer-specific diagnostic trouble code.