My 1980 Toyota Corolla (KE70) has the standard 4K engine.
Here is a link to the pic of the engine
NOTE: The radiator fan which comes in this model is not automatic but instead is connected via a belt which spins based on how fast the engine is running/revving.
So the problem is that the car overheats with the A/C running. It heats up slowly when the car is moving and heats up quite quickly in traffic jams.
Also with no AC and the engine running, the temperature needle comes up to almost half when the car is not moving. PLUS THE AC'S COMPRESSOR TURNS ON AND OFF ACCORDING TO THERMOSTAT so even this is no reason for the heat up.
I got the following things done to control the overheating:
--A bigger radiator.
--A bigger radiator fan with 7 blades
--An extra electric fan (This is in addition to the AC fan)
--The car is tuned properly
--The engine oil level is perfect and the oil is relatively new
--Got double head gaskets installed.
--Got the radiator completely serviced.
BUT STILL! THE CAR OVERHEATS WITH THE AC ON, IN TRAFFIC JAMS OR WHEN MOVING SLOW..
WHAT SHOULD I DO? HELP\
The car runs on CNG usually by the way
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