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Why does my temperature gauge go up when my AC is on?
The engine having to work harder creates higher temperatures (if the AC compressor is bad) and the AC system creates heat that the condenser or water pump can’t cool, also create higher temperatures. Just carrying extra water to put in the radiator when the engine gets hot is going likely to lead to engine failure.
Does engine temp affect AC?
High coolant temperature affects A/C performance. The engine cooling system has an indirect influence on the performance of the A/C system. High under hood temperatures can be the cause of poor A/C output.
What causes temperature gauge malfunction?
The most common cause of faulty temperature readings is a broken coolant temperature sensor (CTS). The part, which is normally located near a vehicle’s thermostat near the base of the radiator (consult your owner’s manual or repair guide) can get gunked up and fail. Disconnect the temperature sensor’s wiring connector.
Will car thermostat affect AC?
The air conditioning system will not be affected by a bad thermostat. The AC system doesn’t care what the engine is doing. The heater is not the same as the other one.
What causes an engine temperature gauge to stay on cold?
Reasons Why your Engine Temperature Gauge Stays on Cold 1. Faulty Engine Coolant Temperature Sensor 2. Faulty Gauge/Cluster 3. Broken wires to the sensor or to the gauge 4. Bad Thermostat 5. Corrosion in connectors 6. Air in the coolant system 7. Broken engine control unit
Why is the temperature gage on my a / C not working?
A/c was blowing cold air for a few minutes then stopped blowing cold air but blow motor was blowing hot air. Next the temperature gage was not working. Disconnected battery for a few minutes and reconnected and the temperature gage is working and the a/c appears to be working.
Why is my car’s temp sensor not working?
The most common cause of faulty temperature readings is a broken coolant temperature sensor (CTS). The part, which is normally located near a vehicle’s thermostat near the base of the radiator (consult your owner’s manual or repair guide) can get gunked up and fail.
Why does my AC not cycle when the temp is cold?
When the temp shows “cold” the AC will not cycle on; that’s normal. The issue is in the temp sensor circuit. The fans running is because the ecm does not see a temp sensor so it assumes a hot condition. If battery disconnect solves the problem it is resetting the ecm (engine control module; i.e. computer).