Can a bad coolant temp sensor cause AC not to work?
Another symptom of a bad or failing ambient temperature sensor is inconsistent cooling. As the ambient temperature sensor plays a direct role in the automated function of the AC system, when it is having a problem this may interfere with the system’s ability to cool the vehicle.
Does engine coolant affect air conditioning?
The cooling of the air conditioner should not be affected by the engine cooling temperature. Is that correct? The A/C problem isn’t caused by the high coolant temperature. The lack of air in the system causes one problem.
Can AC problems cause check engine light?
Check engine light: In some causes, the AC compressor can cause the check engine light to come on. This is true with high-voltage, electric compressors.
When does the coolant temperature warning light turn on?
The coolant temperature warning light turns on when your engine is sensed to be too hot and is at risk of damage from overheating. Is it safe to drive with the coolant temperature warning light on?
What should coolant temp be when engine is hot?
With a good OBD2 code reader, you can also check the live data and the parameters of the CTS sensor. Check that the temperature value of the CTS is around 80-90c when the engine is hot. A lot of engine coolant temperature sensors have two wires and the sensor is controlled by Ohm.
Can a bad coolant sensor cause a car to not start?
Some cars use the engine coolant temperature sensor to control the electric cooling fans. You have two separate temperature sensors for the fans, dashboard gauge, and engine management in most cars. However, if your car has a single sensor, a bad engine coolant temperature sensor may result in your fans won’t start at all.
Is the engine hot AC off warning light still on?
ENGINE HOT AC OFF WARNING LIGHT IS ON. BUT TEMP. GAUGE IS STILL ON COLD ENGINE HOT AC OFF WARNING LIGHT IS ON. BUT TEMP. GAUGE IS STILL ON COLD – Answered by a verified Chevy Mechanic We use cookies to give you the best possible experience on our website.