can a coolant temp sensor keep a car from starting

Can a bad coolant temp sensor cause hard start?

Can a bad coolant temp sensor cause hard start? If the sensor is reading too high of temperature when compared to the ambient air temperature sensor when first started then the computer would see it as a problem and turn on the check engine light to use a known good reading. No start will not be caused by the sensor.

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Coolant Temperature Sensor 🏎️ How It Can Be Fixed?

2021-06-15· The coolant runs through the engine to keep your car at operating temperature and prevent overheating. And the coolant can also prevent freezing during the winter because the coolant is created for this specific purpose. Many sensors are regulating the work of the engine and send the data to the ECU that is the main computer on the car. This computer then evaluates the signal and delivers ...

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Coolant Temp Sensor Bad ️ 4 Signs You Need to Watch Out For!

2021-02-20· The engine coolant temp sensor is a sensor that is designed to keep track of the temperature of your coolant when you’re driving your car around. It’s often exposed to the flow of coolant in your car either in the engine block or in the engine cylinder head, though there are some times when it’s exposed in both areas. Either way, your coolant temp sensor’s job is to gauge the ...

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Can You Drive With A Bad Coolant Sensor? (Solved ...

Unplugging the engine coolant temperature sensor before starting the engine may result in a no start, especially likely on a cold morning. Although the PCM will see the sensor is unplugged and has a default fueling strategy for such an event. It is more of a one size fits all approach and so a cold start in colder temperatures may prevent the engine from starting.

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Coolant Temperature Sensor ️ How it Works, Problems.

2021-05-14· The coolant temperature sensor helps keep the engine at its optimal operation temperature and prevents it from overheating. It is the one that measures the liquid coolant’s temperature. The collected data will then be sent to the car’s computer, which it will use to determine whether it will continue to operate or will adjust certain engine functions to keep the engine within its …

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Signs Your Engine Coolant Temperature (ECT) Sensor Is Bad

2018-06-29· But a faulty engine coolant temperature (ECT) sensor can cause havoc on an engine or its related systems. These are the most common problems: 1. Your check engine light is on: If the engine’s computer detects a problem with the coolant temperature sensor, or its circuit, it will turn on the check engine light. 2. Your engine stalls: When the engine is first started, it will require more fuel ...

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Coolant Temp sensor causing no start? - Audizine

2016-08-12· The rear CTS is a four pin sensor. It's essentially two sensors in one. It sends a signal to the display for the coolant temperature gauge as well as a signal to the ECM for monitoring the mapped cooling system and also for maintaining the proper fueling requirements. It can most certainly have an affect on starting the engine.

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15 Common Problems That Will Make Your Car Overheat - …

Possible problems that can cause a car to overheat range from a cooling hose leak, faulty cooling fan, broken water pump, or bad temperature sensor. When an engine overheats, it is either because the coolant is not cooling the engine or there is no coolant at all. If it is not obvious why your car is overheating, we recommended having a certified auto mechanic diagnose the problem. Regular ...

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What is Normal Engine Coolant Temperature ... - Car Care ...

The best place to start in comparing your vehicle’s normal engine coolant temperature to see if it’s correct is with your thermostat setting. If you call your local auto parts store, like one of our partners below, they will be able to tell you what temperature your engine’s thermostat is designed to start opening. This will likely be somewhere in the 160 to 190 degree range based on ...

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Why does the car's cooling fan keep running?

The situation when the car radiator cooling fan keeps running constantly can be caused mostly by a failing coolant temperature sensor or its wiring, broken fan start relay, damage to the electrical wires, electronic engine control unit (ECU) problems. To understand how the cooling fan should work correctly, you need to know at what temperature ...

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Will a bad coolant temp sensor throw a code?

2020-03-29· 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.

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Starting issues. Coolant Temp Sensor unplugged = starts ...

2014-12-19· Starting issues. Coolant Temp Sensor unplugged = starts fine. Thread starter unitzero; Start date Nov 12, 2014; unitzero Registered User. Nov 12, 2014 #1 I've been having issues with starting the engine (BRD 170 TDI) over the last few months, I had thought it was the battery at 1st and swapped that and all was well for a few weeks but the problem returned. Sometimes it takes about 3 - …

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8 Symptoms of a Bad Coolant Temperature Sensor ...

2021-06-15· Some cars use the engine coolant temperature sensor to control the electric cooling fans. You have two separate temperature sensors for the fans, dashboard gauge, and engine management in most cars. However, if your car has a single sensor, a bad engine coolant temperature sensor may result in your fans won’t start …

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