Car by on 10 thousand size differ, the spare parts with different material is comprised, it is an absolutely beautiful artwork. Generally speaking the assembly of the car craft and the quality that spare parts quality decided a car, but form by so much spare parts, the car can appear with respect to hard to avoid of all kinds abnormal knocking. Car abnormal knocking is a car advocate a kind of the most cheesed in drive a vehicle breakdown, because of abnormal knocking but in drive a vehicle the influence drives the mood, and the quality presence problem of car of feeling letting a person, lose confidence to the car. Actually the generation of abnormal knocking of a lot of moment follows a car advocate cent does not leave, everybody introduction gives simply below.
When 1. drive a vehicle, inside the car store place waits below box of content box, glove, seat, often be being quickened or when brake, occurrence article makes a round trip the sound of rock, time feels is the abnormal knocking of scuttle! In fact this is not what big question, the problem goes was in store the messy article in box of substance style, glove, the glasses case that puts sunglass occasionally also can appear this kind of abnormal knocking. Should appear when this kind of more apparent abnormal knocking, car advocate can oneself eliminate. Be aimed at the part of a certain abnormal knocking, secure one by one to in-house article, find breakdown source thereby.
When 2. drive a vehicle, the car is in different speed interval abnormal knocking is apparent, when car rate is rapid, abnormal knocking frequency is accelerated, the frequency when rate is slow is reduced, appear this kind of abnormal knocking does more is to follow the main transfer machinery of the car to matter, if the tire of the car, transmission shaft reachs transmission,join etc. Face this kind of abnormal knocking, proposal car advocate go repairing factory examination, because need lifts litre of examination and test-drive examination.
When 3. drive a vehicle, there is a foreign body outside feeling a car beating automobile body, and frequency and speed did not concern. This kind of circumstance is a car more exterior have sundry, key examination batholith was hanged sundry, perhaps check mothball box to whether have article roll.
4. car idle fast when, give out inside engine cabin " Da Da " the abnormal knocking that has the law, perhaps give out as the rotate speed change of engine " clang clang " murmur. Afore-mentioned two kinds of situations are not same, engine interior gives out those who have the law " Da Da " sound, it is the sound that a powerful person of carbolic canister electromagnetism works likely, 2 it is cold start-up likely when, the sound that spiracle and rocker give out. And engine is given out " clang clang " when sound, the leather belt of the leather belt that suggests check looks up engine and engine annulus. 5. car turns to abnormal knocking, turn to abnormal knocking very common on a lot of cars, the meeting when general front-wheel drive changes direction is given out " skip skip " or " Ceng Ceng " sound, change direction to appear easily when cold car of a lot of moment actually abnormal knocking, and abnormal knocking disappears after hot car, so this kind of breakdown had better maintain factory examination.
6. crosses the abnormal knocking of decelerate, the suspension when crossing decelerate can appear noise, but when crossing decelerate normally to take commonly, the report of chassis will be very direct, won't have redundant " grow grow " wait for hum, should appear when this kind of cacophony, because support,the reason is more glue or change head of pull rod ball to Song Kuang, need lifts litre of car examination to eliminate.
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