What causes a coolant temp sensor to be bad?
When the PCM senses this low voltage input, it will translate this voltage input to a 250° F temperature. This code is caused by one of the following: Coolant temp sensor’s wires are shorted to ground. Coolant temp sensor’s wires are shorted to each other. Coolant temp sensor is BAD.
How does the coolant temp sensor work on a PCM?
When the PCM senses this high voltage input, it will translate this voltage input to a coolant temperature of -46° F (-50° C). Coolant temp sensor’s wires have an ‘open-circuit’ problem (usually due to a cut wire).
Which is an example of an engine coolant temperature ECT sensor?
An example of an Engine Coolant Temperature ECT sensor Symptoms of a P0118 could include: Vehicle may start, but run very poorly, blowing black smoke, running very rough and misfiring A code P0118 may mean that one or more of the following has happened: An open in the ground circuit between the ECT sensor and the PCM
Which is p0118 engine coolant temperature sensor high input?
P0340 tps high voltage P0118 engine coolant sensor high voltage P0108 map high voltage P0351 coil primary circuit (no idea what that means..) P0113 IAT high volt… 2001 Saturn SC 1.9 4cyl. 120,000mi. P0118 CTS, P0507 ERGvalve, P0301 misfire #1.
How to troubleshoot the engine coolant temperature sensor?
Screw the sensor out with a wrench. Set your MultiMeter in Zero Ohms. Touch the two metal prongs in the sensor with the two pins from the MultiMeter. If there is no reading then the sensor has a problem but if it reads between 1.5 to 2 Ohms then your ECT sensor is working well.
Is it bad to have a high coolant temp?
High temperatures are uncomfortable for us, but they can be even worse for our cars. With high ambient temperatures, your coolant temperature can rise quickly to dangerous levels causing engine damage.
What should the coolant temperature of my car be?
This will likely be somewhere in the 160 to 190 degree range based on what your drive. Another thing to consider when watching your engine coolant temperature is what the engine cooling fans are set to.
Why does a thermostat lower the coolant temp?
Thermostats are designed to open at different temperatures so a thermostat that allows coolant to flow to the radiator at a lower temperature can help keep your engine running cooler.