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Quick Answer: Bmw e36 coolant temperature sensor?

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

What Signs May Signal Your Coolant Temperature Sensor May Be Failing?

  1. Poor Fuel Economy.
  2. Irregular Temperature Readings.
  3. Black Smoke from Your Exhaust.
  4. Your Engine is Overheating.
  5. Your Check Engine Light is On.

What does a bad coolant temp sensor do?

If the coolant temperature sensor goes bad it can send a false signal to the computer and throw off the fuel and timing calculations. It is not uncommon for the coolant temperature sensor to fail and send a permanently cold signal to the computer.

Can you drive without a coolant temperature sensor?

What Happens If You Unplug The Coolant Temp Sensor? Unplugging the engine coolant sensor while the car is running will likely cause the engine to stumble and run rough. The engine light may not come on imminently but a DTC (Diagnostic Trouble Code) will be logged in the PCM.

Can a bad coolant temperature sensor cause car stall?

If the coolant temp sensor is faulty and tells the computer that the car is all warmed up when it’s really not, the computer might then reduce the amount of fuel going into the cylinders, which could cause a cold engine to stall.

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What happens if you unplug the coolant temp sensor?

with the coolant temp sensor unplugged, the car will go into open loop dumping fuel. one of the requirements to go into closed loop is to be above a certain coolant temperature.

How long does a coolant temperature sensor last?

Often, the engine coolant temperature sensor must be replaced at about 100,000 miles. If you don’t properly maintain the engine cooling system, the sensor could fail much earlier.

How much does it cost to replace a coolant temperature sensor?

The average cost for engine coolant temperature sensor replacement is between $123 and $158. Labor costs are estimated between $82 and $104 while parts are priced between $41 and $54.

Does coolant temp sensor affect AC?

In a properly operation system the engine coolant temperature should not affect the cooling of the air conditioner. The A/C condenser is located in front of the radiator and is first to receive the incoming airflow. It is the lack of airflow across the condenser and radiator causing one problem in two systems.

Can you clean a coolant temp sensor?

Sure you can, but if the sensor was bad before the spit-shine, it’ll still be bad after the spit-shine.

How does coolant temp sensor work?

How the Temperature Sensor Works

  1. On most vehicles, the coolant temperature sensor (CTS) can be found somewhere near the engine thermostat, which allows it to function optimally.
  2. The sensor works by measuring the temperature that’s being given off by the thermostat and/or the coolant itself.

Is there a fuse for coolant temperature sensor?

There will be a fused wire with voltage to the instrument cluster (your owners manual should indicate which fuse), but the temperature sensor is providing a variable “resistance to ground,” which the temperature gauge in the dash is reflecting.

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