Coolant Temperature Sensor Resistance Values
Coolant Temperature Sensor Resistance Values. I tested the voltage on a cold motor on the coolant temp sensor circuit: 3.3v (equivalent to about 55 or 60 degrees) with a 150ohm resistor:
As a rough and ready guide engine coolant temp sensors usually drop to a tenth of the standard temp value at 20 degrees c when the engine is running at optimum temperature. The post was close just hot is 9.70 ohms, not 970. As the temperature increases, the resistance is reduced, which reduces the voltage at the sensor.
The Resistance Of The Temperature Sensor Changes Depending On Coolant Temperature.
This is when the coolant sensor is reading 1200 ohms or less. Coolant ect engine ford resistance sensor temperature this chart is for troubleshooting the ect, and act sensor at different temperature ranges. Which is what the temperature was outside today.
I Need The Resistance Values Across The Range For The Temperature Sensor Unit.
If i remember correctly, there's a table in one of the electrical troubleshooting chart. The coolant temperature sensor, also known as the coolant temperature switch, is an engine management system sensor that is used to monitor the temperature of the engine's coolant. The control unit evaluates these voltage values, since they are directly related to the coolant temperature (low temperatures result in high voltage values at the sensor, and high.
Engine Coolant Temperature Sensor Resistance Checking.
This is the resistance of the ecm coolant sensor not the guage. In cold engine and an ambient temperature of 20 ºc the sensor resistance is between 2000ω and 3000ω. I tested the voltage on a cold motor on the coolant temp sensor circuit:
The Resistance Between The Two Prongs Was Now.162 K Ohms.
.45v (equivalent to well over 200 degrees, aka which would turn the fans on) After the engine start, coolant temperature begins to rise. When hot its resistance should drop dramatically.
Most Coolant Temperature Sensors Operate Using Electrical Resistance To Measure The Temperature Of The Coolant.
Both at 75*f, i am getting about a 250 ohm discrepancy (750 + 500 ohms) between the sensors, and am using an ir thermometer held about 8 from the aluminum manifolds, aimed at the base of the sensors. The post was close just hot is 9.70 ohms, not 970. Many of us have had the coolant temp sensor or the temp gauge sensor fail on us, and when replacing it, found that the replacement sensor was also inaccurate.
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