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did you know that nearly 70% of minor
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car problems can be fixed by a simple
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reset yes you heard that right from
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weird warning lights to glitchy
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electronics most of the problems that
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scare drivers into visiting a mechanic
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are often nothing more than your car's
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computer having a bad day in this video
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we are going to uncover five super
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effective methods to reset your car and
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bring it back to life these tricks are
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simple quick and could save you hundreds
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of dollars in repair bills so before you
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spend a single penny at the repair shop
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watch this video till the end because
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your car might just need a reset not a
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repair let's get started method one
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disconnect the battery if your car is
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throwing a check engine light running
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rough or your engine acting weird
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disconnecting the battery can reset ECU
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and clear minor glitches stored in its
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memory this is one of the oldest and
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most effective methods to reset a car
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systems this method is very
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straightforward and requires no special
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tools other than a wrench to loosen the
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battery terminals firstly you have to
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disconnect the negative terminal and
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then disconnect the positive terminal it
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is recommended to leave the battery
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disconnected for at least 10 to 15
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minutes to ensure the system fully
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drains any residual power for deeper
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reset press the brake pedal or horn
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during this time to help drain out
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stored energy from capacitors within the
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system once done reconnect the positive
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terminal first and then reconnect the
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negative terminal once you reconnect the
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battery your car's computer will reset
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its memory it's like giving your car a
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deep breath of fresh air method two use
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an OBD2 scanner modern cars love their
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warning lights even after you fixed a
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problem like replacing a faulty sensor
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the dashboard light might stay on for
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days unless you reset it that's where an
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OBD2 scanner comes in almost every car
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manufactured after 1996 comes equipped
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with an OBD2 port by connecting an OBD2
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scanner to this port you can read
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trouble codes monitor sensor data and
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even clear specific error codes stored
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in the ECU the scanner also has a clear
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codes or reset ECU option which
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essentially tells the car's computer to
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forget stored errors and restart its
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learning process unlike the battery
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disconnect method an OBD2 scanner allows
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you to reset the system without
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disturbing other settings like radio
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presets or clock settings method three
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perform a throttle body reset after
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performing a battery disconnect or ECU
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reset many cars experience a rough or
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unstable idle this happens because the
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car's throttle body loses its adaptive
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memory and needs to relearn the correct
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air flow and idle settings performing a
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throttle body reset or idle relearn
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procedure can fix this problem
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effectively to reset your throttle body
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first you have to turn the ignition key
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to the on position without starting the
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engine in the second step you slowly
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have to press the accelerator pedal to
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the floor and then hold it there for 3
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seconds now slowly release the
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accelerator pedal as slowly as you press
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it this sequence signals the ECU to
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recalibrate the throttle position sensor
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after completing the procedure start the
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engine and let it idle for a few minutes
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without touching the gas pedal this
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allows the car to relearn its proper
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idle speed performing this reset helps
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eliminate problems like stalling erratic
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RPM behavior or delayed throttle
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response after a reset method four
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addressing fuel cap issues believe it or
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not one of the most common reasons for a
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check engine light or fuel system
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warning in modern cars is simply a loose
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or faulty fuel cap modern vehicles are
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designed with sensitive evaporative
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emission control systems that monitor
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the fuel system for any leaks if your
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fuel cap is not properly tightened
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cracked or has a worn out rubber seal
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the system detects this as a leak and
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triggers the check engine light this is
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why before rushing into complex resets
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you should always check your fuel cap
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first open the fuel door remove the cap
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inspect the rubber gasket for any cracks
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or damage and then firmly tighten the
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cap until it clicks several times this
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ensures a proper seal and tells the
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system there's no longer a leak after
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securing the fuel cap properly it may
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take a few driving cycles for the check
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engine light to turn off automatically
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in most cars this means driving for
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about 50 to 100 m over the course of
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several trips allowing the car's ECU to
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recheck the fuel system that's all for
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this video if you found this video
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helpful hit that like button and
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subscribe to the channel to fuel up your
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car knowledge every week and tell me in
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the comments which reset method are you
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going to try first see you in the next
