coolant temp sensor not reading

Coolant temp sensor not reading. The connection looks good ...

· Coolant temp sensor not reading. Mechanic's Assistant: Have you checked the connectors on the sensor itself? It's important that they not be loose or corroded. The connection looks good no corrosion. Mechanic's Assistant: What is the make/model/year of your car? 2009 chevy silverado. Mechanic's Assistant: Are you fixing your Silverado yourself? What have you tried so far? …

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How to Test a Coolant Temperature Sensor |

· The coolant temperature sensor is what tells the car's computer what the engine's running temperature is. This will then translate to how the engine runs. Before the automated systems in vehicles, this was the sole purpose of the temperature sensor. Now, with this special sensor, the engine will adjust itself so that it runs smoothly even on the coldest days and does not overheat once the ...

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Part 1 -ECT Sensor Test (P0117, P0118) (GM , , )

· TIP1: A bad engine coolant temperature sensor will not cause your pick up (van, mini-van, or SUV) to overheat. This article does not cover any type of overheating issue. If your vehicle is overheating, I suggest taking a look at these two tests: How To Test The Thermostat (GM , , ). Troubleshooting A Blown Head Gasket (GM , , ). TIP2: You'll need a scan tool with …

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Can a bad coolant temperature sensor cause car not to ...

· It also sends an accurate reading of the engine temperature to the gauge on the dashboard. Also, if the temperature is too low or too high, it will signal your check engine light to come on. How can you tell when your coolant temperature sensor is not working correctly? It is important to be able to recognize the signs and symptoms of a faulty coolant temperature sensor as it can lead …

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8 Symptoms of a Bad Coolant Temperature Sensor ...

· An engine coolant temperature sensor is essential for the optimal performance of your car. The engine coolant temperature sensor’s job is to measure the coolant temperature for the engine control module. With this information, the engine control module adjusts the air-fuel mixture depending on the temperature. This article will discuss the most common symptoms of a bad coolant temperature ...

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Why Is My Car Temperature Gauge Not Working? - AxleAddict

· 3. If the Temperature Gauge Reading Is Low. A temperature gauge that keeps reading low is not common unless there's a problem with the cooling system. Potential problems include: A stuck-open thermostat; Low coolant level (in a cold climate) Temperature gauge disconnected from the temperature sending unit; Bad temperature sending unit; Faulty gauge

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Coolant Temperature Gauge Not Working?: I Noticed Last ...

If you already replaced the engine coolant temp sensor, then your issue is either wiring or an ECM. I attached the test for this DTC. Let's fix this and I bet the AC not working will be fixed as well since I think that is the ECM shutting down the compressor because if it is truly -40 then the compressor will be damaged if it turns on.

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Temperature Gauge Not Working: What You Need to Know!

· The temperature sensor/sending unit is faulty. If this is the case your sensor will be reading the coolant temperature incorrectly and sending the wrong signal to the gauge. This could work in either direction and read as cool when it’s running hot or hot when it’s running cool. A malfunctioning circuit in the temperature gauge ; Faulty wiring is a potential culprit, and it can be traced ...

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SOLVED: NO READING ON COOLANT TEMP AND THEN CHECK …

The coolant temperature sensor temperature reading should closely match the air charge/manifold temperature reading on a scan tool if the engine has not been run for over an hour. The sensor circuit can be checked for proper voltage using a voltmeter. Read full answer. Jun 03, 2015 • Cars & Trucks. 1 helpful. 1 answer. Engine light and low temp on 96 cavalier. the engine light is telling you ...

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Coolant Temp sensor issues? | Ford Powerstroke Diesel Forum

· Anyone know the symptoms for a bad coolant temp sensor? I do not get a reading from my Scan Gauge II, should I be getting one? I get an ambient air temp reading but it is blank where there is normally a coolant temp reading. Temperature gauge reads fine, I get a low coolant light occasionally under heavy load, but the the coolant level is fine when I check it. I run ELC, have a coolant …

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Engine Coolant Temperature Sensor (ECT)

The engine coolant temperature sensor is temperature-variable resistor, which usually has a negative temperature coefficient. It is a two-wire thermistor immersed in coolant and measures its temperature. The onboard computer uses the signal of ECT as the main correction factor when calculating the ignition advance and the injection duration. Appearance The ECT sensor is shown on fig. 1. Fig. 1 ...

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My Temperature Gauge Is Not Working Why?

Installed the sending unit next to t-stat. Question, how do I get the check engine light off (original coolant temp sensor now out of the picture) and how do I disconnect the original temp gauge (it is bad and keeps flucuating wildly and when it hits 280 degree turns on the check gauges light.

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Coolant temperature intermittently not reading out ...

· I've already replaced my temperature sensor and now I'll proceed to replace the thermostat. People have told me to just move on to replacing the thermostat and told me their symptoms very similar to what I've been experiencing. I have been clearing the code and my coolant readings will come right back almost immediately.

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