Starter brashes worn out , or one channel on shaft blown up , 3th solenoid not function properly main cable loose .in crease the earth negative battery to the engine body.and try.
SOURCE: car won't start has new starter, alternator,
Hello! Check the engine compartment junction block (driers side)...Your vehicle is noted for this problem...Disconnect the (+) battery terminal; Make sure you have the radio code....Visually inspect the block for loose connections...Remove the block from the chassis and look underneath the block for poor connections...Follow the negative (small)l battery lead...It heads to a bolt through the inner fender...Many Sonata's are coming from the factory with that ground bolted to a painted surface...Remove, wire brush to bare metal and re connect...This is a common problem and should solve your starting problem...If this not the fault send a comment...Guru...Saailer
I’m happy to help further over the phone at https://www.6ya.com/expert/david_6df67de3b14de867
SOURCE: Car died, installed new battery, tries to start,
If ur car is fitted with immob., reset it, or diagnose your ignition module for power supply to the distributor.
SOURCE: Two new alternators on and
Go to web site WWW.HMASERVICE.COM and register your vehicle by VIN #. You'll then have access to shop manuals, wiring diagrams, technical service bulletins, illustrations, etc.
Provided there is no problem with the vehicle's wiring, find out what the charging current is to the battery. I've seen batteries which TEST good, but when under a CHARGE short out internally.
Example: Tested a battery & charging system on a Hyundai Elantra, the battery tested "Healthy" but indicated there was a CHARGING SYSTEM PROBLEM. I checked the battery voltage while the engine was running and found the battery voltage at 14.3 VDC (which was normal). I then used a Digital DC Clamp meter arount the positive (+) battery cable & found the battery was charging at 70 Amps!.. it was supposidly already fully charged (should have only been taking 4 to 6 amps when fully charged).
Best guess without looking/diagnosing the vehicle myself
Maybe this will help.
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You need to be more descriptive of the problem, what happens wihen you turn the key? Clicks, cranks, etc..More often than not when people think their batteries are bad it is in fact the alternator so always have the alternate checked before replacing the battery unless the battery has tested as bad.
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