What happens if you unplug the coolant temp sensor?
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Also to know is, can I drive with a bad coolant temp sensor?
Anyone with specific knowledge weigh in. Usually the Coolant Temp Sensor is used for the gauge for fuel trims for cold start enrichment, and fan control. Since the Thermostat and water pump are mechanical the engine will still cool. you will be fine driving until the replace the sensor.
Similarly, what happens if you disconnect map sensor? With the MAP sensor disconnected, the fuel delivery will be excessive and could cause harm to the engine and exhaust system (catalytic converters). Your vehicle getting on the freeway accelerating, bogging down, and reaccelerating sounds like fuel starvation. It could be a fuel pump fault or a plugged fuel filter.
Beside above, what happens when a coolant temperature sensor goes bad?
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. This will reduce fuel economy, and may hinder engine performance.
How do I know if my coolant temperature sensor is bad?
Signs of a bad Engine Coolant Temperature Sensor
- Poor Mileage.
- Check Engine Light Activates.
- Black Smoke from the Exhaust pipe.
- Engine Overheats.
- Poor Idling.
- Do not Use Tap Water to Refill Radiator.
- Fix Oil Leaks and Gasket Immediately.
- Check for Coolant Leaks.