Occasionally, when we drive, the meeting inside the car is ineffable the different noise of occurrence Da Da, it is bored very. Because several components in trends comprise the car, so abnormal knocking reason has a lot of. Too professional we did not say, sum up a few common abnormal knocking simply, if everybody comes up against similar case, can contrast search. Major abnormal knocking comes from at the following respects:
A section of a highway of jolt of 1 low speed is noisy
Inside the car store substance style article, the article inside glove box or hind the sound that the electrical wiring that adds outfit electron equipment knocks. Occasionally this kind of sound can pass ceiling reflection to come back, you can feel is the ceiling is in noisy.
Reason: Below this kind of circumstance, check with respect to the attention store substance style, the hand helps box interior up, bazoo wearing also meets the sunglass in glasses box noisy, and hind the electrical wiring that adds the recorder of drive a vehicle of outfit takes a line is Song Kuang. This kind of abnormal knocking examines way: Hand make a fist, area beat is assigned in car interior, when knock appears to noise of a certain place, nearby has what thing all round whole place certainly, one by one is taken out or secure, beating affirm, if noise disappeared, the thing that with respect to the specification you are taken or secures is abnormal knocking source.
The 2nd kind of 2 circumstances
If no matter low speed, high speed, have abnormal knocking, and rate is rapidder, frequency is faster, concern with main transfer machinery with respect to the specification, be about to check the transmission part outside the car, be like tire, ball basket is waited a moment. Reason: This kind of noise is accompanying transmission or shake those who transmit, with the fragmentary Da Da sound inside the car different. Distinguish very easily, after deciding, go repairing on the factory frame runner embryo can search.
The 3rd kind of 3 circumstances
Have nothing to do with speed, noise is irregular, resembling is the sound that knocks outside the car.
Reason: This kind of circumstance, the attention handles doorcase periphery, mothball box is scattered article, perhaps check get off chassis. There should be deciduous leaf below the windscreen before the examination or sundry beat of generation be puffinged by air current, perhaps not be bodywork bottom or mothball box are scattered the rock beat of thing (for instance the water bottle in mothball box or sundry rock) ; Polybag perhaps was hanged below the car other perhaps and sundry.
The 4th kind of 4 circumstances
Fizz sound appears when taking turbine car to quicken
Reason: The sound of pressure boost of the turbine when this kind of circumstance. Normal, cycle racing can magnify this is planted technically sound, such meetings let cycle racing hand feel very exciting.
The 5th kind of 5 circumstances
Jockey after flameout, can hear engine cabin to transmit fizzy sound of the rule, like tire go flat, but very the rule, .
Reason: This kind of sound is the sound of oil pump pressure release, take T especially (turbine pressure boost) and straight gush model often can appear inside the crock. Need not pay attention to surely.
The 6th kind of 6 circumstances
Idle fast when, stand before the car, give out as engine rotate speed clang clang cacophony.
Reason: If you had changed electric machinery leather belt annulus, or above of 80 thousand kilometer has not changed electric machinery leather belt annulus, be about to repair factory check to look up electric machinery leather belt annulus, it is electric machinery likely very what ageing of leather belt annulus just perhaps changed is unqualified.
When 7 dozens change direction, from the sound that Beng Beng transmits before the car
Reason: Be ball basket gives an issue commonly, go repairing factory examination as soon as possible. If envelope became bad leakage is oily, can change envelope, clean ball. If oil did ball to already wore away, need to change whole ball basket. Appear this kind of abnormal knocking, still can accompany when quickening, can feel what frequency and speed become direct ratio to front-wheel drive comes out " Ceng Ceng " attrition sound.
8 when crossing damping to pit, car front-wheel drive " crash is become " noisy
Reason: Because support,be for the most part glue or change head of pull rod ball to Song Kuang. Fast vacate and stride the top glue that vacate, when also calling plane bearing occurrence problem, revolve to meeting occurrence abnormal knocking, grind the sound of the ground like tire balata a bit, wear on car after entering the space, turn to tire, bearing place can issue the rule " " sound. This is basic the noise that is bearing interior ball.
9 after jockeying, the noise of bang of bang of Pi of car bottom Pi
Reason: 3 yuan of catalysis implement heat bilges cold shrink. Normal phenomenon.
The noise of Zhi of the Zhi inside 0 engine, have the law with rotate speed, or idle fast when frequency is even.
Reason: A certain drive annulus the sound that give out, need goes repairing a factory to check, or use stethoscopic undertake exploration, general with stand-alone leather belt annulus matters.
Basically, common abnormal knocking, can be checked from a few afore-mentioned respects. If still do not have fish problem, can listen to the master that repairs a factory to look for major, redo eliminates a law to determine noise position.
