Quick Answer

Question: Where is the temperature sensor on a 12 valve Cummins?

Coolant/Water temperature sensor. Installs in the back of the cylinder head on the drivers side.

Where is the temperature sensor on a 5.9 Cummins?

This is the coolant temp sensor located in the front right corner of the cylinder head beside the thermostat housing.

Where is the coolant temperature sensors located?

In most cars, the primary ECT sensor (ECT sensor 1) is installed near the thermostat in the cylinder head or block or on the thermostat housing. A second coolant temperature sensor could be installed in another part of the engine, or in the radiator.

Where is the coolant temperature sensor located on a 2001 Dodge Ram?

1994-2001 Dodge Ram 1500 Coolant Temperature Gauge and Sender

What is coolant temp sensor?

The Coolant Temperature Sensor is used to measure the temperature of the engine coolant. The readings from this sensor are then fed back to the engine control unit (ECU). This data from the sensor is then used to adjust the fuel injection and ignition timing.

How do you check a temperature sensor?

Submerge your temperature sensor in the hot water and wait a few seconds to let your multimeter take a reading. Write down your reading so you can easily reference it. A hot water reading should give you around . 25 volts.

Can a bad coolant temperature sensor cause car not to start?

The sensor will not cause a no start. It could cause a hard start and a rich or lean condition only.

How do I know if my coolant temp sensor is bad?

Bad Coolant Temperature Sensor Symptoms

  1. Check Engine Light.
  2. Poor Mileage.
  3. Electrical Cooling Fans not coming on.
  4. Black Smoke from the Exhaust Pipe.
  5. Difficult Starting Condition.
  6. Engine Overheats.
  7. Poor Idling.
  8. Poor Engine performance.

Does the coolant temp sensor control the thermostat?

The sensor works by measuring the temperature that’s being given off by the thermostat and/or the coolant itself. The temperature is then sent to the on-board control system.

What can a faulty coolant temp sensor do?

A bad engine coolant temperature sensor can also cause the poor performance of your vehicle. A bad engine coolant temperature sensor can send a faulty signal of low coolant temperature. It can also send the wrong signal of high coolant temperature when it is not.

How do you check a coolant temp sensor with a multimeter?

How Do You Test A Coolant Temp Sensor With A Multimeter? your thermometer into the hot water, put your unit in it, and allow your multimeter to read its readings for a few seconds. Make sure you take note of your reading so you don’t feel overwhelmed. Make sure you get an accurate reading of your water by doing so.

How many ohms should a coolant temperature sensor have?

Working principle of the ECT sensor

In cold engine and an ambient temperature of 20 ºC the sensor resistance is between 2000Ω and 3000Ω. After the engine start, coolant temperature begins to rise. ECT gradually heats and its resistance reduces proportionately. At 90 ºC its resistance is in the range of 200Ω to 300Ω.

What happens when a fuel temperature sensor goes bad?

A bad fuel temperature sensor may give a constant cold signal, it can also mess up and communicate a hot signal when the engine temperature is quite safe. As a result, your car will indicate an overheating engine when there is no such issue, leading to the dashboard warning light on.