20 Most Recent 2007 Hyundai Sonata Limited Sedan - Page 3 Questions & Answers

You would need to have the engine computer scanned for trouble codes to proceed.

Try establishing communication under global/generic. use the appropriate key and 'can' adapter may be required.

code readers need the correct pins to communicate to the ECM . You will have to say what the car is and what engine as there are a number of cables that can be connected .

I think your torque converter IS the problem. Because it's the only thing that attaches the engine to the transmission and it's designed to "lock up" at highway speeds for overdrive. If it locks up at idle it will kill the engine. If it locks up at slow speeds ( < 35mph ) the vehicle will lurch/buck... And if it wont move in forward or reverse I would say it's time for a new/rebuilt transmission

I believe I can help with this. Try the following fixes in this order: 1) Try jiggling the steering wheel while you try to turn the key in the ignition. You can also try moving the wheel as far as possible to the left and trying to turn the key as well as turning it as far as possible to the right and turning the key. In most cases, this works to fix the problem. 2) Dust and dirt can get into your ignition switch and build up over time. The dirt will contain a bit of moisture and cause a "gel" or "grease-like" substance to form. This can freeze if you live where it's cold, but either way, it may stop the key from turning. The fix is to spray a few squirts of carburetor cleaner (using the small spray straw) in there and move the key in and out. This should clean the grease-like substance out of the inside. Then, squirt a bit of WD-40 in there. This should prevent it from happening again for a long time. If #1 didn't work, 9 times out of 10 this will.
3) Take the car to the repair shop, you most likely have an ignition problem.

the only tune up you can do on most current cars, is to replace sparkplugs, as ignition timing is computer controled

depending on where you got the alt it could be defective, I've gotten them and they haven't event charged. i'd take it back and have them listen to it so they know that its a bad part.

you are lucky it did not go off. it will need to re programed again. and checked as you should not remove wires on a a bag wile the power is on, you have to take the battery off and wait 15min before you do anything like that. air bags can kill if not used properly.

check high beam fuses and relay under hood fuse box if ok replace dimmer switch