If it was hooked up wrong you'd know it . You would have fried something .
No Start Diagnostic Basics EricTheCarGuy
SOURCE: I remplace a new alternator and battery on a BMW x5 2001 it won'
theres an anti-theft system. take positive terminal off battery, have someone holding the key on like trying to start it, then put the terminal back on and that should start it right up (had same problem in my dodge ram) if not, check all you're connections
SOURCE: My truck won't start, it makes a ticking noise
Check all the grounds....especially the ground from the battery to the frame.
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
Hi Vernon, There could be a number of different reasons why your vehicle is failing to start. The battery voltage could be dropping during start and become unable to engage the starter motor to turn the engine. You can check this by trying the key with the head lights switched on. If the lights become very dim, you'll need to check the battery, meaning clean the terminals and then try to start with a jump from another battery. If you achieve start up and it fails again the following morning, you will probably need to replace the battery. There could be a problem with the starter relay or a loose contact for the starter motor, most lik3ely the one connecting to the soliniod. It would be good to know some additional information, such as does a clicking sound come from the starter when engaged? Is there a perceptible drop in voltage output when the starter is engaged? does the enine turn at all? Try what I've suggested and if that does not solve the problem answer the questions and let me know anything else which you may think is relevant. Regards John
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