Hi people so here's the prob the check gauges light light's up when im on the high way i dosent seem like i have overheating probleme....get bck to the normal when i get back to a regular driving. Ah and the motor choke some time when i start for no reason. Plz help me out if you hve the same prob.
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If your temperature gauge is reading too high, it can only be one of two things: The engine is overheating or the gauge is "lying" to you. I would recommend first taking the temperature of the cylinder head with an infrared thermometer to determine which one it is. If the engine is actually as hot as the guge says it is, then you need to check your cooling system. If the engine is not as hot as the gauge says it is then you need to diagnose and repair your gauge circuit. (most likely an inaccurate temperature sensor)
the check gauges light means exactly that, look at your gauges, there is something wrong, look all the gauges when the engine is running, usually the temp gauge is to high, is the vehicle overheating, is the check eng. light on, make sure all the gauges are reading normal, the check gauges light is there to get your attention, see what it wants.
If the car is overheating and no A/C cold air output. Im sure the radiator fan is faulty. very common problem for overheating condition. If the car is over heating and the radiator fan is not on replace the radiator fan high and low speed it will fix your A/C problemn too. Hope this helps please rate if it does.
The car is not overheating if the temp gauge goes up and down by turning the lights on and off. The gauge is giving you bad information. You can confirm this by starting the car from cold, sitting in the driveway, let the temp go to somewhere BEFORE normal operating temp, then turn on headlights and fan blower on high, watch the gauge, then turn them off. If the gauge moves significantly from the electrical load, you probably have a short or a bad ground connection.
You have a short circuit or bad wiring somewhere in the front half of the car. I don't know what thermostat switch you have replaced ... but it's not the problem .. stop buying them. If you are the original owner, was there an accident that may have damaged some wiring? If you bought the car second hand, get a carfax and find out where the thing was hit ... concentrate your wiring trouble shooting in that area.
I think it is something OTHER than the temperature sending unit or the gauge