Battery and Alternator Questions

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    • Guest - David Shadeck

      Changed altinator forgot to unhook battery car is no crank no start

    • Guest - Carlos

      Literally just installed a brand new Altenator and my battery is great Condition but for some off reason m y car dies out on me every once in a while like o me a day most of the times if im l icky every otyher day or so but I have a code p0021 and I'm aware of that buyt I also need to put in a new sensor for the bank 2 on my Nissan Maxima 03 se anything so me one can help me out why this continues to happen

    • Guest - Dave

      I have to keep jump starting my car once it runs its fine leave it a day and I have to jump again
      Not sure if the alternator is not charging the battery or the battery is not holding charge


      How can I identify the problem

    • Guest - James Abrams

      My 2003 Chevrolet Tahoe left turn signals don't have power getting to the fuses and they don't come on. Replaced bulbs and fuses. ?

    • Guest - Tim

      In reply to: Guest - James Abrams

      You may have a bad turn signal switch. That is where the power comes from. You would really need a schematic to diagnose this because you need to test voltage out of switch. If it does have voltage, then you need to follow the circuit toward the back of the truck checking continuity and connectors.

    • Guest - Niesha W.

      My 2003 trailblazer is smoking from the battery

    • Guest - Dawn Lewis

      In reply to: Guest - Niesha W.

      New battery in the car and it still won't start is it the alternator

    • Guest - Peggy

      Just had fuel pump put on 1999 mercury sable. Car started up ok. Didn't drive car for 2 days because it was very cold weather. On 3rd day I tired to start car but there was no sound at all - only a dim battery light was seen. When I turned car off, there was a ticking noise. When I try to start car, ticking noise stops. I put key in off position & ticking noise starts again even when car is turned off. What is the problem?

    • Guest - Locoric1@aol.com

      Cleaned battery terminals and posts. Truck started a few times now battery to weak to start. However the knights stay on they are very dim but on. I everything is off ignition and switches. What would cause the lights to be on? Ford F150 5.4

    • Guest - Tom

      In reply to: Guest - Locoric1@aol.com

      A shorted out wire or a stuck relay can cause the lights to stay on your Ford. With low system voltage electrical components like relays and switches do not function properly, so may be stuck on.

    • Guest - Peggy

      In reply to: Guest - Tom

      I submitted this information about my 1999 mercury sable but it dissappeared. I had a fuel pump put on my car. It ran ok. I didn't start it up for two days - very cold weather! When I tried to start it up, it engine wouldn't make any noise. There was a very dim battery light showing. When I turned ignition key off, car makes ticking noise - even with car turned off. I believe the battery is low but what causes the ticking sound?

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    How Things Work

    Charging System Components and Operation

    On today's newer cars and trucks, the generator (ALternator) provides DC voltage to operate the vehicle's electrical system and to charge the battery. A magnetic field is created when current flows through the rotor windings. The rotor is belt driven by the engine creating an AC voltage as this field rotates within the stator windings.

    Read more...

    Common Engine Codes

    Cam Crank Correlation Code P0014 P0016

    P0016 - P0014. The engine control module (ECM) uses the crankshaft position (CKP) sensor and the camshaft position (CMP) sensor pulses to monitor the correlation between the crankshaft and camshaft position.

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