When picking up a new car, open the cover and inspect the engine. The connections of the various components should be tight. There should be no leakage marks on the joints of the oil, water pipes and various components. The water and oil should be filled to the standard line. The wires are arranged regularly, the line card is complete, and the battery money is firmly connected. The sound of the horn is crisp.
After about two seconds, the oil pump will deliver the oil to the engine and then start with the starter. At this time, due to the cold car, the engine has a high number of revolutions, the engine should have no abnormal noise, stable operation, no obvious jitter, and the belt and the disc have no pendulum and beating phenomenon. Turn the engine off after three to five minutes of normal temperature.
Start the engine again, the normal starting time should not exceed two seconds, the engine idle speed should be stable, the warning lights of the instrument panel should be extinguished, and the hands of each meter should work normally. The throttle and engine revolutions should be upgraded quickly, without obvious hysteresis, no vision, and the throttle should be turned off. The number of revolutions should be smooth and fast back to idle speed. There is no obvious phenomenon of stagnation at a certain speed. Open the air conditioner switch and compressor. When starting, the engine should have no obvious jitter, and the number of revolutions can be smoothly increased by one to two hundred revolutions. The operation is stable and the air conditioner is turned off.
Press the clutch pedal, hang one gear, reverse gear, do not step on the throttle, and smoothly release the clutch pedal to the semi-engaged position of the engine and the transmission part. The engine should not be turned off, no obvious jitter, no abnormal noise. If it is automatic gear, step on the brakes, respectively, reverse gear, forward gear, release the brakes, do not step on the throttle, the vehicle starts smoothly, the engine should run smoothly, the number of revolutions is not significantly reduced, the shift lever to the neutral position, forcefully step on Foot brakes.
Check the water and oil pipe of the engine again, whether there is leakage at the brake and clutch connecting pipe, and whether the position of each watch is normal, the engine check is basically the same.
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