Have very car advocate the meeting because of car apparatus dial " special " show or react unusually and panic-stricken, because lack the understanding to loving a car,this is, small today make up give everybody the car advocate people explain the breakdown with car common appearance and the idea that eliminate.
Engine oil pressure expresses breakdown
1
Engine falls in all sorts of rotate speed, watch of engine oil pressure all does not have pressure to indicate
Breakdown reason: Lube pressure expresses power supply cord to open circuit; Coil of the electric heat inside lube pressure watch is burned-out; Lube pressure sensor damages; Engine is lubricant systematic breakdown.
Breakdown diagnoses: Put through ignition switch, dismantle wire of next one aspect of the matter of lube pressure sensor, do the instant to take iron test, if lubricate,oil pressure force expresses guiding principle instantly to 0. 5 MPa direction is mobile, explain lube pressure watch is good; Right now detachable issue sensor and mount dismantles the wire below, do not have cuspidal iron hammer with, a place of strategic importance presses diaphragm into the oily Kong Ding of sensor, if lube presses force watch to ambulate, explain sensor is good, engine is lubricant the system has trouble; Conversely, have trouble for sensor, can inspect affection to undertake repairing.
When be like lead of sensor one aspect of the matter to build iron to experiment, lube pressure watch still does not move, usable one aspect of the matter trying the light receives engine oil pressure to express column of power source wiring, another end builds iron to experiment. If try the lamp not to shine, open circuit for electrical wiring road; If try the lamp to shine, demonstrative lube pressure expresses itself or have trouble to sensor circuitry. Right now, the one aspect of the matter of derivative wiring column that can express in lube pressure builds iron to experiment, the shot that be like a watch is mobile and normal, instruction card to sensor a paragraph of lead opens circuit; Damage to express itself conversely.
2
Put through after ignition switch, engine had be notted start
Engine oil pressure expresses pressing with a finger to point to maximum namely
Breakdown reason: Watch of engine oil pressure takes iron to sensor lead; Interior of engine oil pressure sensor takes iron.
Breakdown diagnoses: When encountering this kind of situation, answer to shut ignition switch instantly, lest pressure watch is burned-out; When the examination, can dismantle wire of next sensor one aspect of the matter first, put through again ignition switch does a test; If express a needle to move no longer, show sensor interior short circuit, should give change or repair; If express a needle to still point to maximum, should be checked and repair pressure watch to take iron place to sensor lead.
3
Engine is when all sorts of rotate speed, engine oil pressure expresses chaos of pressing with a finger to place, indication forbids
Breakdown reason: Because suffer force to pass,feeling of engine oil pressure sensor presses diaphragm big and happen be out of shape; Ablation of surface of the contact inside engine oil pressure sensor, oxidation; Join lead contact is undesirable.
Breakdown diagnoses: Put through ignition switch, check each wiring column to whether rustily, pine takes off a phenomenon, each lead has without open circuit breakdown; If have,should undertake repairing, tear open next sensor outfit to check its indication accuracy on stage of engine oil compression test otherwise, if differ a value to exceed 20% , should change sensor.
Breakdown of water lukewarm table
1
Put through after ignition switch, finger of water lukewarm table is not moved
Although water is warm,produce change, pressing with a finger still is not moved
Breakdown reason: Power supply cord of water lukewarm table opens circuit; Coil of electric heat of water lukewarm table is burned-out; Circle of hot line of sensor of water lukewarm table is burned-out; Water lukewarm table joins to sensor lead undesirable or open circuit.
Breakdown diagnoses: Put through after ignition switch, tear open enter the water lead of lukewarm sensor one aspect of the matter takes iron with the place such as cylinder body directly, like water lukewarm watch needle returns to normal instantly, explain water lukewarm table is good, coil of demonstrative sensor electric heat burns out or contact is contacted undesirable; If water is warm,watch finger still is not moved, take iron with one aspect of the matter trying the light, other one aspect of the matter receives one aspect of the matter of column of wiring of power source of water lukewarm table, if try the lamp to shine, explain itself of water lukewarm table or watch have trouble to sensor circuitry, it is water lukewarm table conversely internal report hot line encircles burned-out open circuit; If try the lamp not to shine, open circuit for circuitry of power source power supply, should check other appearance character of service right now, give in the light of particular case next eliminate or change.
2
Put through after ignition switch, engine had be notted start
Or movement before long finger of water lukewarm table points to maximum
Breakdown reason: Water lukewarm table takes iron to sensor lead somewhere; Sensor interior takes iron.
Breakdown diagnoses: Put through ignition switch, tear open lead of next sensor one aspect of the matter to make the test that take iron, if pressing with a finger is returned former, explain sensor interior takes iron; Still use otherwise tear open lukewarm table of water of the examination that act a way whether does a paragraph of lead have to sensor take iron, be repaired next or change.
Ammeter breakdown
1
After engine is started,
Engine rotate speed lifts no matter how many, ammeter finger indicates discharge
Breakdown reason: Fan belt is too loose, break off or be stained with smeary and skid; Dynamo lead connect becomes loose, contact undesirable or lead joins iron short circuit; The dynamo has breakdown not to generate electricity; Excitation circuit opens circuit outside; Adjuster adjusts connect of undeserved, lead to become loose, or it is contact ablation, resistor is burned; Density of accumulator plate vulcanization, electrolyte is too low.
Breakdown diagnoses: Distinguish above all because accumulator puts electric inadequacy to still charge,charging is systematic breakdown is caused, if because charge,systematic breakdown place is caused, can check fan belt to whether skid first, loosen, wiring of each join lead is good, and dynamo wiring is correct wait;
Engine stops after turning, tear open the armature on next adjuster and magnetic field the lead on two wiring column, remove two lines end repeatedly, the engine that start, maintain idle fast movement condition, watch ammeter, if charging, explain adjuster has trouble, it is low speed contact commonly ablation, smudgy or high speed contact is irresolvable, can hear commonly when contacting ignition switch " Da Da " noise, if do not have " Da Da " noise, demonstrative relay contact did not close, tear open next adjuster to build, check relay magnetizing coil whether burned-out, open circuit or short circuit, whether does contact clearance pass big or ablation;
Should tear open fall and the lead on center of join adjuster electrify and column of magnetic field wiring, the engine that start comes idle fast, if do not charge, stop next engine, demolish receive to the lead on column of dynamo armature wiring, with this car small bulb is made try the light, armature of one termination dynamo accepts post, one aspect of the matter accepts case, if try the lamp to shine, explain the dynamo is good, there is trouble in charging electrical wiring way, if try the lamp not to shine, explain dynamo interior has trouble, part of one's job solves a dynamo; Examination diode is good, the insulation of wiring column and slip ring whether burst puncture, whether stator and rotor coil open circuit or short circuit, brush and slip ring contact are good.
2
After the engine that start, charging current of ammeter finger directive is in 10A above
Breakdown reason: Adjuster contact clearance is adjusted undeserved, adjust voltage is exorbitant; Resistor of coil of adjuster magnetic force opens circuit; Accumulator interior short circuit; Adjuster the first smudgy to contact ablation or the 2nd pair of contact, contact is undesirable.
Breakdown diagnoses: Tear open next adjuster to build, examine the first pair of contact, if ablation should disconnect, if good, raise engine rotate speed to examine the 2nd pair of contact whether close, if can close, touch point contact for the 2nd pair undesirable; If cannot close, usable come back the attraction that has test coil core, if be attraction to compensate resistor open circuit for coil temperature; Attraction is very little, circle for coil discontinuous road; Attraction is very strong should move pulling force of bedspring of mobile contact arm small, if charging current subsequently normal, cross big be caused by for bedspring pulling force.
3
Engine is when all sorts of rotate speed, ammeter indicated value is too little
It is especially after nightly drive a vehicle opening the lamp, engine starts difficulty
Breakdown reason: Fan belt is too loose; Charge circuit wiring is undesirable; Individual diode damages or brush contacts the dynamo undesirable; Voltage regulator adjusts voltage passes low or contact is smudgy, ablation; Dynamo stator winding has one look connection is bad, or short circuit, open circuit.
Breakdown diagnoses: Should check fan belt to whether be hit clear above all, whether does lead join good, be like all good, detachable next adjuster lids, with the hand taut bedspring, the engine that start, middling speed runs, be like charging current to increase at this moment, show adjuster limitation voltage is inferior, should move close bedspring pulling force; Be like charging current still lesser, use come back a join the first pair of contact, if charging current follows engine,increase right now, make clear the first pair of contact ablation or smudgy, should give repair or clean, be like charging current still small, it is dynamo interior breakdown, should tear open next undertaking that repair.
4
Engine idle when fast above rotate speed runs
Ammeter finger left and right sides swings, show charge flabby
Breakdown reason: Fan belt is too loose; Accumulator comes wiring of lead of column of dynamo armature wiring is undesirable; Connection of dynamo interior lead is bad, or open circuit, short circuit; Dynamo charcoal is brushed wear away serious or charcoal brushs bedspring pressure too small, or slip ring smudgy, contact is undesirable; Ablation of voltage regulator contact or smudgy, bedspring pulling force loses or ballast resistor works fluky.
Breakdown diagnoses: Should check fan belt to whether cross loose, each wire above all link is nice; Tear open next go adjuster lid, with the hand taut bedspring, the engine that start, middling speed runs, if charge,stabilize, explain bedspring pulling force is too small, should grant to adjust, if charge to be not stabilized, use come back a join the first pair of contact, if charge,stabilize right now, explain contact ablation or ballast resistor are fluky, answer to reduce engine rotate speed slowly, make the first pair of contact quit the job, if charge,stabilize right now, explain ballast resistor job is fluky, if charge to be not stabilized, it is contact ablation; If use,come back a join the first pair of contact charge to be not stabilized, demonstrative breakdown is in dynamo, the connection case that should examine dynamo charcoal to brush the contact with slip ring and inside wire is good.
Does the car leave long does gear-box always give an issue? The car that blocks automatically also has needed good conserve!
Fuel gauge breakdown
1
Put through after ignition switch, oil is kept in gasoline tank no matter how many
Fuel gauge finger always is pointed to 1 (oil is full)
Breakdown reason: Fuel gauge opens circuit to sensor lead; Sensor interior opens circuit.
Breakdown diagnoses: Put through ignition switch, tear open lead of next column of wiring of fuel gauge sensor to do the test that take iron, point to like pressing with a finger 0, explain sensor interior opens circuit; If still do not point to 0, can make fuel gauge derivative wiring builds iron to try a face, if pressing with a finger points to 0, explain fuel gauge opens circuit to sensor lead, can inspect a circumstance to undertake repairing.
2
Put through ignition switch, fuel gauge finger always indicates 0
And actually gasoline tank is not without oil
Breakdown reason: Sensor interior takes iron; Buoy attaint; Polarity of column of fuel gauge wiring is received instead; Fuel gauge power supply cord opens circuit.
Breakdown diagnoses: Check its lead link is nice, if connect a line good, detachable the lead on next sensor does the test that take iron, if pressing with a finger is right now rotational normal, demonstrative sensor interior has take iron or buoy damage, should undertake disassembling repairing.
Speedometer breakdown
1
Finger of watch of the speed in drive a vehicle points to forever 0, odograph not computation
Breakdown reason: Speedometer flexible shaft joins nut did not tighten solid; Speedometer flexible shaft breaks off or fall off; Speed expresses active pinion attaint; Speedometer attaint.
Breakdown diagnoses: Examination flexible shaft is good, if damage, should change flexible shaft, if fall off, can reinsert, come back close nut; Whether does examination driving gear damage at the same time, if attaint should change; If afore-mentioned all good, it is speedometer attaint, should change.
2
Index of watch of the speed in drive a vehicle swings ceaseless, beat sometimes
Breakdown reason: The locknut installation of speed watch flexible shaft is undesirable; Speed expresses twist together of axis of core of flexible shaft steel wire; Speed expresses attaint.
Breakdown diagnoses: Check speed to express flexible shaft locknut above all installation is good, next flexible shaft two end discharging fall, twist with the hand both ends of the axis that use core, if obstruction has,feel smally suddenly greatly suddenly, it is axis of core of its steel wire bends, should change new axial core or flexible shaft; If obstruction does not have feeling blocking sluggish equably, can check odograph word to rouse whether hairpin, be like hairpin, should change, change otherwise speedometer.
3
Pressing with a finger is when high speed travel ability is nominal swing, medium, low speed is pointed to constantly 0
Medium perhaps index of the index when low speed slants big, indication forbids
Breakdown reason: Permanent magnet breaks magnetism be caused by; Hairspring is out of shape; Hairspring loses flexibility.
Breakdown diagnoses: If in the finger when low speed travel is moved scarcely, can tear open speed watch below, take out rotor, fill magnetism afresh; If be indication of pressing with a finger,slant big, should change hairspring.
Believe to see these slowly dried food, each car advocate people encounter these problems again won't panic-stricken, but small make up a proposal to encounter afore-mentioned circumstances not to want privately to demolish, unless you are professional. If your love car appears above circumstance, diagnose through proper motion, can write case report inn to steam, at least is OK suit the remedy to the case, reduce needless problem to appear!
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