? Car abnormal knocking is a problem that makes a person special headache, because it just does not reduce the mood of the member that drive a vehicle is multiplied inside car of advanced feeling, influence, more important is some abnormal knocking it is actually " breakdown calls the police " , find the source of abnormal knocking so and eliminate abnormal knocking to appear particularly important.
10 kinds of abnormal knocking of respecting want below, covered whole vehicle part almost, if your car appears these abnormal knocking, want to be handled in time.
Automobile body abnormal knocking
Because automobile body stiffness is insufficient,the problem that occurrence automobile body has abnormal knocking is normally, bring about car to produce deformation in travel, door and car casing chafe or shake, or some places are sealing off and the attrition between generation armor plate. Basically mass of vehicle causes this, this is character and manufacturing technology issue, basic that's all right settles way.
Nevertheless part of a few automobile body was not secured good cause abnormal knocking possibly also, this go up closely screw perhaps changes an adhesive plaster to be able to be solved, stick gum to be on door window perhaps pay the means such as balata in attrition place or the license perhaps eliminates abnormal knocking with reducing, but take temporary solution not effect a permanent cure.
Start engine room abnormal knocking
Engine shakes giving out a few sound is normal phenomenon, but a little special sound and likelihood mean potential trouble. For instance:
1, cry of harsher leather belt howl, this is caused commonly;
2, the metal when engine runs the bleep of dry attrition, this is the dynamo, water pump, reason that changes bearing of the pump that help strength to attaint commonly, also be fastener becomes loose likely cause;
3, if be the sound with engine flat movement, it is exhaust system jams likely, vacuum tube leak or the result that rupture;
4, appear the sound that weighs hammer to spend knock metal again, this is engine happened to explode shake, because ignition shifts to an earlier date,be commonly part is too large, firebox accumulates carbon overmuch, sparkplug calorific value is low reach use inferior gas;
Tire abnormal knocking
If be,hear when drive a vehicle " Da Da " sound, it is be mingled with likely very stone or tire was plunged into hammer; If be to appear depressed tone " verbose of toot verbose toot " sound, accompanying the rock of tire and automobile body at the same time, tire should be to appear tread cobbly phenomenon, need changes an embryo; Fetal pressing is exorbitant, also be to may cause tire embryo a confusion of voices to cross big reason.
Gear-box has abnormal knocking
The method that judges gear-box abnormal knocking is, if the car is in,idle appears below fast circumstance noise, the noise after stepping on next clutch disappears, indicating noise origin is gear-box occurrence breakdown and cause; To the model that blocks automatically, if gear-box interior appeared the sound of rustle, stepped on next accelerator gear-box not to ring however, it is gear-box produced abnormal knocking likely extremely so.
Gear-box occurrence abnormal knocking is commonly wear away by bearing or gear bring about. When the car is cheered suddenly in travel, can hear the noise that gives out from chassis place. Gear is given out " Ka Ka " noise, bearing breakdown can be given out at this moment " rustle " sound, serious when can become " " noisy or " ping ping " sound. Gear-box upkeep costs is higher, accordingly, often must check, diligent oil change.
Brake abnormal knocking
This should be the commonnest abnormal knocking. Step on brake " hoarse neighs " cry, it is a likelihood there was good thing in brake; 2, brake piece the likelihood is about to be ground, need changes; If above 2 o'clock is not, because,that may be brake piece character is stronger, exchange the stop a machine by cutting off the power with a softer texture piece should meet solve this problem.
Of course, brake piece there is a few in bottom commonly hard metal is drossy, this is put in intentionally when production, grind these drossy, with respect to the fizzy sound that can give out a metal to chafe, tell a car namely advocate brake piece fast did not have, should change at that time brake piece.
Pensile abnormal knocking
Travel is on the road, the roadside that bumps especially, pensile meeting gives out all sorts of strange noise, this moment you are about to take seriously, the sound that occasionally this is normal jolt also may be potential vehicle failure.
As a whole, this kind of breakdown decides pensile system abnormal knocking harder still, need repairs a factory to promote the car to check to professional 4S inn, do not want blind to change.
Because certain part shakes quantity having free from worries,abnormal knocking basically is, or it is certain part wears away bring about, if the car has produced collision accident, need more thorough careful examination. Check each glue to cover the appearance that whether is put in ageing even at the same time, if ageing circumstance is not serious and OK,gush dot is similar to the antirust lubricant such as WD-40 be covered to glue on, can have lubricant effect, also can reduce the happening of abnormal knocking.
Steering wheel abnormal knocking
The importance of steering wheel need not say more, doing not have direction to remain is an accident. The main reason of steering wheel abnormal knocking has:
1, change head of ball of horizontal pull rod to ageing, quantity having free from worries. Change change ball of horizontal pull rod to the head, but need to do after change four-wheel fixed position. Directional machine is dustproof the oil that cover leakage, more relieve dirt is covered or hit butter to be able to be solved afresh.
2, turn to engine trouble. If hit direction to be transmitted " click clicks " abnormal knocking, it is to change direction likely machine cooperate gear clearance to be caused greatly too, need changes change direction machine.
3, degree of tightness of the leather belt that help strength is spent undeserved or ageing. Help strength to mechanical hydraulic pressure, if aid degree of tightness of force leather belt undeserved or ageing, can transmit abnormal knocking sound, adjust leather belt to degree of tightness is spent or change leather belt.
4, the gasbag hairspring breakdown inside steering wheel. This main needle passes the car of steering wheel to tearing open, the likelihood is gasbag hairspring ruptures or gasbag hairspring outlet was not inserted, to 4S inn the examination changes or secure can.
Engine fender abnormal knocking
Screw often can produce displacement on the car that often moves, if often be heard resembling is to enter what gas grille position gives out " bang bang " abnormal knocking, become loose really besides grille outside, so car advocate still should check next engine fender screw to whether become loose, or engine fender becomes loose with negative happening, the abnormal knocking that cause, besides close solid screw, still should fill up some of chipboard in abnormal knocking place kind article, can eliminate abnormal knocking easily.
Before windshield abnormal knocking
The sound that windscreen creaks with respect to occurrence creak before, this belongs to the abnormal knocking that affects mood of the member that the car mies wife badly namely. Glass of the windscreen before be being encountered actually is noisy, not be manufacturer normally assemble technology issue, however before windscreen may take a foreign matter or dust, need undertakes clearinged.
A section of a highway of low speed jolt is noisy
Encounter this kind of situation, what should do above all is whether sound of the examination after safety jockeys originates the article that the place such as mothball perhaps box deposits glove box, armrest box, if eliminated this, belong to a car basically to assemble the problem of craft, want to solve root question to do not have play basically, can adopt only stick gum, mat balata, fill sponge to wait to method alleviates and eliminate abnormal knocking as far as possible.
