Re: 2003 Ram 2500 Engine Coolant Sensor

On Mon, 17 Nov 2008 11:07:24 -0800, Frank Warner


Oh, and no chance of a stuck thermostat not allowing the truck to properly heat up?

5.7L V-8: The Engine Coolant Temperature (ECT) sensor on the 5.7L engine is located under the air conditioning compressor (Fig. 12). It is installed into a water jacket at the front of the cylinder block.
WARNING: HOT, PRESSURIZED COOLANT CAN CAUSE INJURY BY SCALDING. COOLING SYSTEM MUST BE PARTIALLY DRAINED BEFORE REMOVING THE COOLANT TEMPERATURE SENSOR.
You must unbolt the A/C compressor and carefully move it out of the way to replace the sensor. But check again that the sensor is defective or not, as there are other problems which will cause this code.

Probably OK to drive. Most commonly, if the Check Engine Light is steady on, it is OK to drive, but won't be effieient. If the Check Engine Light is blinking, do not drive!

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