What about Buick Sail's high idle speed and high fuel consumption?

When there is a problem with the idle speed of the vehicle, the first thing to look at is whether it is time to change the oil. Change the oil in time, otherwise the engine will be abnormal if it takes too long.

Pay attention to the choice of engine oil. Automobile oil should be of high grade, such as SJ grade or above. This kind of engine oil has better quality and good performance in all aspects.

Look at the antifreeze in the tank.

The antifreeze in the water tank should also be checked more, neither less nor more, otherwise its effect will be affected and it will not play a good role in cooling the engine.

Pay attention to antifreeze. Generally, new cars need to be replaced every 2-3 years or every 40,000 kilometers. The antifreeze with suitable freezing point should be selected according to the regional temperature. For example, if the lowest ambient temperature is-10, the antifreeze of -25 should be selected.

Check the engine.

If the idle speed of the vehicle is not the problem of engine oil and antifreeze, check the engine to see if there is any problem.

Check the oil circuit.

Sometimes the idle speed of the vehicle is too high, and it is likely that there is something wrong with the oil circuit, such as a blocked throttle and so on.