How to turn on the coolant temperature sensor?
Locate the sending unit and have a helper turn the key to ‘run’ or ‘on’ and watch the temperature gauge. When you unplug the wire from the sensor, the gauge should go to its lowest position. Touch the end of the lead to a piece of iron (the engine block or a bracket).
What does an engine coolant temperature switch do?
Also sometimes referred to as an engine coolant temperature (ECT) sensor or coolant temperature switch, sensors help keep your engine operating smoothly at the right temperature. Temperature sensors are thermistors, resistors whose resistance changes with temperature.
Why does the coolant sensor read cold even when the engine is running?
These problems can often be identified by visual inspection of the ECT sensor. Problems with the coolant temperature sending unit can cause faulty readings from the temperature gauge or light. You might find that the gauge reads cold even when the engine has been running.
How do you remove a coolant temperature sensor?
Step 7: Remove electronic harness from the temperature sensor. It’s time to locate and remove the coolant temperature sensor. The first thing is remove the electronic harness that connects to the sensor. Typically this sensor is attached with a plastic clip.
Where is the best location for coolant temperature sending unit?
The car wasn’t actually overheating but the gauge would show it so we moved the sensor to the manifold and it started to jive with the t-stat. Another factor may have been that the headers were close to the port on the head too. Thanks guys, NYH1!
How can I check the coolant level in my car?
Step 1: Start the vehicle. Let it warm up to operating temperature. Step 2: Check for leaks. Be sure to check for leaks from the radiator drain plug, petcock, or the coolant temperature sensor. Step 3: Check to see if the check engine or low coolant level light is illuminated.
Where did GM put the coolant sensor in the head?
GM put the sensor in the head, made sense to replace it there… Click to expand… True, but they never made a factory 383 stroker and actually put them in a car…just saying lol!