1991 k5 blazer water temp gauge not working

• 2022-11-11

1991 k5 blazer water temp gauge not working. First, confirm that the vehicle is a water temperature gauge. Is it consistent with the water temperature? If the actual temperature of the vehicle does not rise, it is related to the ambient temperature. If the actual water temperature rises, the temperature of the water temperature gauge does not rise, and the water temperature sensor needs to be detected.

1.1991 k5 blazer thermostat failure. The thermostat is always in the big cycle position. After the cold car starts, the engine is in the big cycle, which causes the water temperature to be too low and the engine cannot warm up;

2.1991 k5 blazer water temperature sensor failure. The fault of water temperature sensor leads to the identification of the wrong water temperature. At this time, the water temperature is not necessarily the actual water temperature of the engine; Because the water temperature sensor is installed on the water jacket of the engine cylinder block or cylinder head and directly contacts with the cooling water, the temperature of the engine cooling water is measured. If the water temperature sensor fails or fails, the engine ECU detects that the output signal of the water temperature sensor is not credible.

3.The 1991 k5 blazer electronic fan is abnormal. It is not controlled by the engine and is in the normal running state, which causes that the engine water temperature cannot rise all the time;

4.The 1991 k5 blazer temperature difference between the engine and the outside is large. The weather is extremely cold, and the water temperature will come up slowly. It is recommended that the original geothermal vehicle wait two minutes for the temperature to come up before continuing driving.

Low water temperature is naturally harmful to the car. Low water temperature will prevent the fuel from being fully burned, reduce the working efficiency of the engine, and gradually form carbon deposits. Excessive carbon deposits will increase the fuel consumption of the engine and accelerate the wear of the engine. In addition, if the water temperature of the vehicle is too low for a long time, it will accelerate the failure of parts in the engine. The 1991 k5 sparkling water thermometer does not work. It may be that the instrument panel is broken. It may be that the water temperature sensor is broken. We can provide the water temperature gauge and sensor. Welcome to inquire.