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Car Common Problems

Car Indicators and Warnings Lights App Car Problem & Car Warning Lights App, this app indicates whether you can safely continue to drive, or are required to seek immediate assistance. App contains over 473 warning lights, their description and advice.

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car engine common problems Engine Diagnostic Trouble Codes go



Engine problems :
  • Black smoke coming from exhaust on acceleration  reason & solution go

  • That often indicates rich fuel mixture or lots of carbon deposit in the exhaust system.
    Check the air filter first, if is dirty replace it. Exhaust system is choked with carbon, if you are most stop-start city driving. Catalytic Converter on the exhaust is blocked or is full of carbon. Could be the injector(s) leaking or stay partly open or faulty injector pump. Cylinder head problems, valves clogged up due to faulty EGR (exhaust gas recycling valve). Turbo charger faulty leaking oil, check the intercooler for split. Air Mass Flow sensor faulty. If the Check Engine Light is on, you need a diagnose engine for trouble codes.

    Have your car checked by an auto mechanic - soon as you can.


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  • White smoke coming from exhaust on acceleration  reason & solution go

  • Engine is burning coolant, makes white smoke or water in the exhaust system.
    Cylinder head problems, bad head gasket or cracked head. Check engine compression, low compression indicated cracked head. Coolant could also be leaking into engine oil, check if the engine oil looks brown or milky that indicates coolant is mixed with the oil.

    Have your car checked by an auto mechanic - soon.


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  • Engine starts but white smoke comes from exhaust initially  reason & solution go

  • Is normal cold start condition when engine is cold water condensation is steaming off tail pipe.
    When the engine is not running a condensation formed, causing a white smoke from exhaust of car to comes out during car starting on a cold morning. This is normal condition, observe when the engines runs in operate temperature, excessive white smoke coming from the tail pipe.
    Check if the engine oil looks milky.


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  • Excessive blue smoke coming from exhaust while driving  reason & solution go

  • Engine is burning oil, check engine oil level.
    The valve seals worn out leaking, worn valve guides or cracked head, oil is leaking into cylinders.
    Turbo charger faulty oil is leaking into intake. Engine piston rings or cylinders worn, engine has worn out. Check the engine compression if pressure is low, you engine need major repair.

    Have your car checked by an auto mechanic.


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  • Engine power is fine on flat road but weak on the hills  reason & solution go

  • Engine power loss, clogged fuel line or exhaust system, a weak worn engine.
    Ignition problems: bad spark plugs or spark plugs wires, fuel problem injectors malfunction.
    Catalytic Converter clogged, low fuel pressure fuel filter clogged or faulty pump faulty.
    Engine electronics malfunction. Engine piston rings or cylinders worn out signs of power loss.
    If the Check Engine Light is on you need a diagnose engine for trouble code.
    Check the engine compression if pressure is low, you engine need major repair.

    Have your car checked by an auto mechanic. Tune up the engine.


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  • Engine stalls on acceleration  reason & solution go

  • That often indicates vVacuum leaks, bad spark plugs, low fuel pressure or clogged air filter.
    Check the air filter first, if is dirty replace it. Ignition problems: bad worn spark plugs or bad wires.
    Fuel system problems: clogged fuel filter or faulty pump cause low fuel pressure.
    When is cold and wet weather a moisture on high voltage wires, distributor cap that leads to engine misfiring. Also vacuum leak will affect the air-fuel mixture that enters combustion chamber, this result to engine stalling. Idle speed wrong adjust, throttle housing dirty clogged, check throttle position sensor.
    Engine electronics: idle speed valve, electronic throttle control or ECM/PCM malfunction.
    If the Check Engine Light is on, you need a diagnose engine for trouble codes.

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    Have your car checked by an auto mechanic - soon.


  • Engine makes pinging sound on up-hill road or on acceleration  reason & solution go

  • That often indicates using wrong low octane fuel or excessive carbon deposit in engine cylinder.
    Low octane gas cause pinging in high compression engines. Wrong timing or engine electronics malfunction. Check spark plugs, replace worn spark plugs and check ignition timing advance.
    Pre ignition pinging sound caused hot carbon deposit in engine combustion chamber, often on wrong spark plugs or hot valves. Fill up gas tank with high octane gas first, and check for pinging.

    Have your car checked by an auto mechanic.


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  • Engine sound rough on high speed  reason & solution go

  • Worn spark plugs or spark plug wires, ignition timing set wrong, miss adjusted valves.
    Check ignition timing advance, correct the problem by replacing worn spark plugs and spark plugs high voltage wires. Check and replace distributor cap and rotor. Look for miss adjusted or worn out valves,
    first adjust the valves.
    Wrong ignition timing, engine electronics malfunction.

    Have your car checked by an auto mechanic. Tune up the engine.


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  • Engine starts and runs on for a few seconds then shut off  reason & solution go

  • Throttle housing clogged, vacuum leaks, ajust idle speed, idle speed valve or temperature sensor faulty.
    Vacuum leak will affect the air-fuel mixture that enters combustion chamber, this result to engine stalling.
    Idle speed wrong adjust, throttle housing dirty, check throttle position sensor. Engine electronics: idle speed valve malfunction, engine temperature sensor faulty, electronic throttle control malfunction.
    If the Check Engine Light is on, you need a diagnose engine for trouble codes.

    Have your car checked by an auto mechanic. Tune up the engine.


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  • Engine backfires through tailpipe on acceleration  reason & solution go

  • Check for water in fuel, wrong valve timing or ignition timing, damaged exhaust valves.
    If there is an ignition system malfunction, it burns the fuel mixture passing through the exhaust, caused by a temporary loss of ignition, rich idle mixtures in combination with exhaust air leaks cause backfiring.
    Moderate backfiring cause by damaged exhaust valves or valve seats, weak or broken valve spring.
    Backfiring can damage exhaust gaskets and Catalytic Converter.

    Have your car checked by an auto mechanic - soon.


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  • Ticking noise coming from the engine while running  reason & solution go

  • Check if oil pressure warning light is on, insufficient engine lubrication, adjust the valves.
    The oil pressure is low, observe the oil warning light if the oil warning light comes on while the ticking occurs, then the problem is poor engine lubrication. Loose valve cause ticking noise, most likely the valves need adjusted or you must replace faulty hydraulic tappet. In older motors ticking noise is caused by loose rockers. Check for leaking exhaust manifold and loose engine parts.


    Have your car checked by an auto mechanic - soon.


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  • High pitched squeal coming from the engine while running  reason & solution go

  • Check the serpentine drive belt, alternator bearings, pulleys and belt tensioner.
    Alternator worn bearings and AC compressor pulley produces high pitch squeal noise. Also if drive belt becomes worn or damaged maks high pitch squeal. Exam drive belt for demage, leave the engine idle for a couple of seconds without the belt, if the squeal is gone, noise is related to the drive belt or components: pulleys and belt tensioner. Spray Silicone lubricant on the alternator bearing if not sealed, and on underside drive belt. It will temporary stop the squeal noise.

    Have your car checked by an auto mechanic. Change worn serpentine drive belt.


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  • Car not starting grinding and clicking sound when trying to start  reason & solution go

  • That often indicates bad battery or battery cables demage bad conection, faulty starter motor.
    Check if the battery is weak or dead, test battery and charging system. Clean and tighten cables if required. Replace the battery or cables if required. Check starter cable connection and starter solenoid, replace starter motor if faulty. If you hear a excesive grinding noise, look for broken or worn teeth on the flywheel and on the starter pininon gear.
    While cranking the starter motor turning without being able to engage, check starter solenoid.

    Have your car checked by an auto mechanic.


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  • Engine oil warning light occasionally flickers while driving  reason & solution go

  • That often indicates the oil level is low or you are using wrong engine oil.
    If oil level is low add more oil, observe the oil warning light check oil level is between the marks.
    Likely you are using a wrong oil, when the engine is hot oil becomes thin, causing a reduction in oil pressure which causes your car oil warning light to flicker.
    Check your car maintenance book for engine oil specification.


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  • Engine oil warning light came on steady while driving  reason & solution go

  • That indicates oil pressure is below a minimum, engine can seize causing severe engine damage.
    Stop driving immediately and switch off the engine. First check the oil level, if is low add oil to bring the level to the full mark. If oil level was low, it means your engine is either leaking oil or burning oil.
    Low oil pressure cause by: worn or broken oil pump, excessive main bearing wear, not enough oil.
    Oil main function is to lubricate moving parts in the engine.

    Have your car checked by an auto mechanic - soon.


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  • Temperature gauge reads hot only in prolonged, slow traffic  reason & solution go

  • That indicates radiator fan is not working or low coolant level, engine is overheating.
    Check coolant is filled to the level, never open radiator cap when engine is hot.
    Thermostat stuck close or partly opened, change thermostat. Bad radiator cap, make sure the radiator is not clogged with dirt, visually inspect the radiator. Radiator fan is not working or water pump failed.
    If the engine temperature is normal, the temperature gauge or sensor malfunction.

    Have your car checked by an auto mechanic - soon as you can.


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  • Temperature gauge reads hot only in hot weather, at any speed  reason & solution go

  • That indicates not enough coolant, clogged radiator or radiator hose, engine is overheating.
    Check the coolant level, never open radiator cap when engine is hot.
    Inspect for collapsed radiator hose, visually check the radiator if is not clogged with dirt.
    Look for coolant leak and faulty water pump or bad thermostat.

    Have your car checked by an auto mechanic - soon as you can.


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  • Temperature gauge always reads hot shortly after starting engine  reason & solution go

  • That indicates temperature gauge, temperature sensor malfunction or faulty water pump.
    Check the coolant level, never open radiator cap when engine is hot.
    There is not enough coolant look for coolant leak. Replace faulty water pump.
    Diagnose engine for trouble code, read temperature sensor.

    Have your car checked by an auto mechanic - soon as you can.


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  • Radiator water boils over, when engine is hot  reason & solution go

  • Radiator fan is not working, radiator is clogged, collapsed hose, thermostat filled engine is overheating.
    Thermostat stuck close, change thermostat. Make sure the radiator is not clogged with dirt, visually inspect the radiator, repair radiator fun.

    Have your car checked by an auto mechanic - soon as you can.


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         Stop driving and switch off the engine - needs urgent repair.


Engine performance problems :
  • Engine runs normally but gas mileage is less than expected  reason & solution go

  • That often indicates engine runs on rich fuel mixture, clogged air filter or leaking injectors.
    Check the air filter first, if is dirty replace it. Service your vehicle regularly, poorly maintained vehicle can
    use up to 15% more fuel, correct tire pressure.
    Potential for air mass meter or O2 sensor malfunction.
    Change your driving habit avoid speeding. Saving fuel while driving
    If Check Engine light is on indicated engine malfunction, diagnose engine for trouble codes.

    Have your car checked by an auto mechanic. Tune up the engine.


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  • Engine lacks power on flat road and hills  reason & solution go

  • Engine power loss, clogged fuel or exhaust system, weak worn engine.
    Ignition problems: bad spark plugs or spark plugs wires, fuel problem injectors malfunction.
    Catalytic Converter clogged, low fuel pressure fuel filter clogged or faulty pump faulty.
    Engine electronics malfunction. Engine piston rings or cylinders worn out signs of power loss.
    If the Check Engine Light is on you need a diagnose engine for trouble code.
    Check the engine compression if pressure is low, you engine need major repair.

    Have your car checked by an auto mechanic. Tune up the engine.


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  • Bad smell, rotten egg or Sulfur smell coming from in car while driving  reason & solution go

  • That often indicates Sulfur smell, wron gas Sulfur in fuel. Odour smells from AC vents.
    The smell not an indication of an engine mulfanction The sulfur smell or 'rotten egg' odor is caused by high amounts of sulfur in the gasoline Vehicles using fuel containing high amounts of sulfur will most likely emit sulfur smell from the exhaust system. When high sulfur fuel is burned, there is a chemical reaction in the catalytic converter causing the sulfur to oxidize. Switch to a different brand of fuel and drive the vehicle for at least 100 Km, observe decrease or increase in bad sulfur smell.

    Odour smells coming from the Air Conditioning may be caused by bacterial build ups in the vents system.
    As your car becomes older or when the air conditioning system is used infrequently, bacteria and micro-organisms in the evaporator causing unpleasant odour in you car. Also the AC drain if is plug by dirt and the water stay in evaporator housing, causing unpleasant smell coming from the vents.


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  • When idling, the vehicle shakes  reason & solution go

  • That often indicates misfire worn spark plugs, wrong idle speed, faulty idle valve, dirty throttle housing.
    Ignition problems: worn spark plugs or spark plugs wires, repalce worn spark plugs. Fuel problem injectors malfunction. Idle speed wrong adjust, throttle housing dirty, check throttle position sensor. Check for broken engine mount. Electronics: idle speed valve malfunction, electronic throttle control malfunction.
    If the Check Engine Light is on, you need a diagnose engine for trouble codes.

    Have your car checked by an auto mechanic. Tune up the engine.


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  • Engine runs somewhat rough when idling  reason & solution go

  • That often indicates vacuum leaks, wrong idle speed, idle speed valve faulty, worn spark plugs.
    Vacuum leak will affect the air-fuel mixture that enters combustion chamber. Ignition problems: worn spark plugs or spark plugs wires, repalce worn spark plugs. Fuel problem injectors malfunction.
    Idle speed wrong adjust, throttle housing dirty, check throttle position sensor.
    Engine electronics: idle speed valve malfunction, electronic throttle control malfunction.
    If the Check Engine Light is on, you need a diagnose engine for trouble codes.

    Have your car checked by an auto mechanic. Tune up the engine.


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  • While accelerating, the vehicle hesitates and jerks  reason & solution go

  • That often indicates worn spark plugs or bad wires, low fuel pressure or clogged air filter.
    Check the air filter first, if is dirty replace it. Ignition problems: worn spark plugs or bad high wires.
    Fuel system problems: clogged fuel filter or faulty pump cause low fuel pressure.
    When wet weather a moisture on high voltage wires, distributor cap that leads to engine misfiring.
    Throttle position sensor faulty, electronic throttle control malfunction.
    If the Check Engine Light is on, you need a diagnose engine for trouble codes.

    Have your car checked by an auto mechanic. Tune up the engine.


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  • Engine makes pinging sound on acceleration  reason & solution go

  • That often indicates using wrong low octane fuel or excessive carbon deposit in engine cylinders.
    Low octane gas cause pinging in high compression engines. Wrong timing or engine electronics malfunction. Check spark plugs and ignition timing advance.
    Fill up gas tank with high octane gas first, and check for pinging.

    Have your car checked by an auto mechanic.


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  • Engine stalls while idling  reason & solution go

  • That often indicates vacuum leaks, wrong idle speed, idle speed valve faulty, worn spark plugs.
    Vacuum leak will affect the air-fuel mixture that enters combustion chamber. Ignition problems: worn spark plugs or spark plugs wires, repalce worn spark plugs. Fuel problem injectors malfunction.
    Idle speed wrong adjust, throttle housing dirty, check throttle position sensor.
    Engine electronics: idle speed valve malfunction, electronic throttle control malfunction.
    If the Check Engine Light is on, you need a diagnose engine for trouble codes.

    Have your car checked by an auto mechanic. Tune up the engine.


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  • Engine stalls while driving  reason & solution go

  • That often indicates vacuum leaks, wrong idle speed, idle speed valve faulty, dirty throttle housing.
    Ignition problems: worn spark plugs or spark plugs wires, repalce worn spark plugs. Fuel problem injectors malfunction. Idle speed wrong adjust, throttle housing dirty, check throttle position sensor.
    Engine electronics problems: idle speed valve malfunction, electronic throttle control malfunction.
    If the Check Engine Light is on, you need a diagnose engine for trouble codes.

    Have your car checked by an auto mechanic. Tune up the engine.


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  • Engine starts but black smoke comes from exhaust initially  reason & solution go

  • That often indicates rich fuel mixture, dirty air filter, engine temperature sensor faulty.
    Check the air filter first, if is dirty replace it. Could be the injector(s) leaking or stay partly open or faulty injector pump. Turbo charger faulty leaking oil, check the intercooler for split. Ignition problems: bad worn spark plugs or bad wires, replace spark plugs if worn, Air Mass Flow sensor malfunction.
    If the Check Engine Light is on, you need a diagnose engine for trouble codes.

    Have your car checked by an auto mechanic - soon as you can.


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  • Engine starts but engine backfires initially  reason & solution go

  • Check for water in fuel, wrong valve timing, ignition timing wrong, damaged exhaust or inlet valves.
    Backfires ignite the air fuel mixture while it is still in the intake manifold. Cause by sticking or leaking inlet valve. Ignition system malfunction wrong timing, burns the fuel mixture passing through the exhaust, caused by a temporary loss of ignition, rich mixtures in combination with exhaust air leaks cause backfiring.
    Moderate backfiring cause by damaged exhaust valves or valve seats, weak or broken valve spring.
    Backfiring can damage exhaust gaskets and Catalytic Converter.

    Have your car checked by an auto mechanic - soon as you can.


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  • Engine starts but will not stay running   reason & solution go

  • Check throttle housing is dirty, for vacuum leaks, ajust throttle idle speed.
    Vacuum leak will affect the air-fuel mixture that enters combustion chamber, this result to engine stalling.
    Idle speed wrong adjust, throttle housing dirty clogged, check throttle position sensor.
    Engine electronics malfunction: idle speed valve faulty, engine temperature sensor faulty, electronic throttle control malfunction.
    If the Check Engine Light is on, you need a diagnose engine for trouble codes.

    Have your car checked by an auto mechanic. Tune up the engine.


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    Have your car checked by an auto mechanic soon.

         

 car starting problemsEngine starting problems :
  • Vehicle starts but engine sputters while trying to start
  • Vehicle not starting, no sound at all
  • Vehicle not starting, spinning sound when trying to start
  • Vehicle not starting, engine turns over quickly
  • Vehicle not starting, engine backfires while trying to start
  • Vehicle not starting, engine sputters while trying to start
  • Vehicle not starting, only when engine is very cold
  • Vehicle not starting, only when engine is very hot

  • Is still safe to drive your vehicle home or to a service shop, repair your car soon as possible


Alternator problemsAlternator problems:
  • Vehicle not starting engine turns over slowly
  • Vehicle starts but engine turns over slowly before it starts
  • Vehicle not starting clicking sound when trying to start
  • Battery warning light occasionally flickers while driving
  • Battery warning light came on steady while driving

  • Have your car checked by an auto mechanic soon.

car battery Battery Charge and Replace go



Battery problems:
  • Car is silent when you turn ignition key
  • Car makes a clicking noise but won't start
  • The car won't start on cold mornings
  • Car headlights seem dim
  • Battery warning light came on while driving

  • Have your car checked by an auto mechanic soon.


brakes problemsBrakes and ABS Brakes problems :

  

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  • Brake pedal goes down much further than it used to (brakes worn out)
  • Brake pedal sinks to floor when brakes are lightly applied (brakes fluid leak)
  • Brake pedal vibrates while applying brakes (brakes discs worn out)
  • Steering wheel vibrates while applying brakes (brakes discs worn out)
  • Entire vehicle vibrates while applying brakes (brakes discs worn out)
  • Brakes make a squealing noise (brake pads worn out)
  • Brakes make a grinding noise (brake pads worn out)
  • Rattling sound coming from brakes (brakes worn out)
  • When I am braking, the brake pedal feels spongy (brake system faulty)
  • The vehicle pulls to one side when I step on the brakes (brake pads worn out)
  • After releasing brake pedal, one brake is still partly on (brake system faulty)
  • After releasing brake pedal, all brakes are still partly on (brake system faulty)
  • When I apply the brakes, I hear a clunk noise (brakes or suspension faulty)
  • I must step very hard on the brake pedal to stop the vehicle (brake system faulty)
  • One wheel locks up, when brakes are applied (brake system faulty)
  • Brakes warning light briefly flickered while driving (brake pads worn out)
  • Brakes warning light came on steady while driving (brakes fluid low)
  • ABS warning light stays on or is flashing (ABS electrical system faulty)
  • Anti-lock brakes warning light came on while driving (ABS brake system faulty)

  • Stop driving, have your car checked by an auto mechanic


Manual Transmission problemsManual Transmission and Clutch problems :
  • Grinding noise only when shifting into one particular gear
  • Grinding noise when shifting into reverse gear
  • Grinding noise when shifting into all gears
  • Noise only while moving in one particular gear
  • Noise while moving in two or more gears
  • Pops out of first gear while driving
  • Pops out of second gear while driving
  • Pops out of third or higher gear while driving
  • Pops out of reverse while backing up
  • When releasing clutch pedal, engine poor response
  • While driving, clutch pedal vibrates as it's depressed
  • Growling or grating noise when clutch pedal is fully depressed
  • Squealing or howling noise as clutch pedal is being released
  • From a stop, vehicle shakes as clutch pedal is released
  • From a stop, I can't shift into first gear/no grinding

  • Is still safe to drive your vehicle home or to a service shop, repair your car soon.
Automatic Transmission problems Automatic Transmission Trouble Codes go


Automatic Transmission problems :
  • From a stop, sluggish initial forward movement
  • From a stop, delayed initial forward movement
  • From a stop, up shifts through gears occur too early
  • From a stop, up shifts through gears occur too late
  • From a stop, up shifts through gears occur timely but are rough
  • From a stop, up shifts through gears are erratic
  • During at least one up shift, engine races before gear engages
  • When I shift into gear from Parking position a clunk noice
  • While driving, I hear a clunk when I release the accelerator
  • After shifting to reverse, there's a delay before vehicle backs up
  • One particular gear doesn't seem to work
  • None of the gears work at all, there is no response
  • Vehicle doesn't hold when gear selector is in Parking position
  • When I floor it, the passing gear doesn't kick in
  • Whining or growling noise coming from transmission while driving

  • Is still safe to drive your vehicle home or to a service shop, repair your car soon.

car suspension problemsSuspension problems :
  • At a certain speed, the front end vibrates
  • At a certain speed, the rear end vibrates
  • At a certain speed, the entire vehicle vibrates
  • Front end dives when applying brakes
  • Loud thump from front end when driving quickly over a dip
  • Loud thump from rear end when driving quickly over a dip
  • Overall, the vehicle's ride is very bouncy or mushy
  • Overall, the vehicle's ride is hard it feels every bumps
  • Abnormal tire wear, wearing mainly on inside edge of tire
  • Abnormal tire wear, wearing mainly on outside edge of tire
  • Abnormal tire wear, wearing on both edges of tire/not in middle
  • Abnormal tire wear, wearing mainly in middle of tire
  • Abnormal tire wear, wearing on various spots of tire

  • Have your car checked by an auto mechanic soon.


car steering problemsSteering problems :
  • Steering feels loose and sloppy, especially at higher speeds
  • During turns, there's a clicking noise coming from the front end
  • Tires screech when vehicle is turning a corner at normal speed
  • While driving, the vehicle pulls slightly to the left or right
  • While driving, the vehicle pulls heavily to the left or right
  • When engine is cold, steering is stiff all or mainly in one direction
  • Sometimes while driving, steering becomes stiff for a moment
  • Over time, steering has gradually become stiffer, harder
  • There is looseness in the steering wheel or steering column
  • At a certain speed, the steering wheel vibrates
  • While coming out of a turn, steering wheel doesn't easily return

  • Have your car checked by an auto mechanic soon.


car heating system problemsHeating System problems :
  • Heater blows air that isn't warm even though engine is hot
  • Vents barely blows out air even  fan is at highest seed setting
  • Vents doesn't blow air out at all, at any fan setting

  • You can drive your car, visit auto repair shop soon

car ac system problems Air Conditioner Common Problems go


Air Condition AC problems :
  • Air Condition is not blowing cold air anymore, reduction over time
  • Air Condition suddenly stop blowing cold air
  • Air Condition blows mostly cold air, but sometimes it blows warm air
  • Air Condition blows air that has a mildew odour

  • You can drive your car, visit AC specialized repair shop soon


car body problemsAuto Body problems :
  • Auto Body collision damage (minor)
  • Need Body repair estimate
  • Rust on the body, need paint job
  • Body scrunches or dents
  • Water likes in to the vehicle

  • You can drive your car, visit auto body shop soon

 
 
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