06 Sonata Electrical Problems! HELP!!

Asked by jdrum90 Nov 03, 2014 at 05:13 AM about the 2006 Hyundai Sonata GLS FWD

Question type: Maintenance & Repair

I have a 2006 Hyundai Sonata GLS 3.3 liter.
I've had my Sonata for a few months.
Bought it from a private party. I've had
practically zero problems out of it since I've
had it. Just routine maintenance. But since
I've owned it I've noticed little things such
as:
-Headlights dimming and loss of air
pressure from the air vents when I brake
and get below 30mph.
-My steering wheel controls have switched
up on me randomly. Like the volume up is
suddenly the mute button and the mute
button is the mode button ect. (Only
happens a few times)
-Interior dome lights flicker when the car is
on.
-Slight transmission issue. For example,
When I have to slow down to stop at a
stoplight and the light turns green before I
make a complete stop as I accelerate the
transmission acts confused. Like it doesn't
know if it should be in 1,2 or 3?? It doesn't
act up in manual mode....
-Most recently my passenger headlight
went out. Not my bulb. I'm assuming the
wiring leading to the headlight has a short
in it. (If you move it around it will come on
but the second it falls back into place it
goes back off.)

AND NOW MY MAIN CONCERN RIGHT
NOW:
The car isn't wanting to start. Its Nov. Just
started getting to freezing and bellow and
the car just doesn't want to start! It will turn
over for about 30 seconds to a minute
before starting or not. I've had my battery,
starter and alternator tested and all came
back perfect. Which leads me to believe
something electrical like everything else
wrong in the car. I love this car but I've
never had to deal with this stuff. There for
leaving me in the dark and not wanting to
go to a dealer where they'll charge me just
to say I'm crazy and nothing's wrong when
clearly SOMETHING is. Please help!!!

7 Answers
63,145

BoholMark answered 10 years ago

First, disconnect the battery for about a half hour as you clean every ground strap and battery connection. This way the ECU wil reprogram itself and if any of the cables are dirty or lose you will have fixed the problem.

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63,145

BoholMark answered 10 years ago

Hunt around. There's a bunch of them. Get under the vehicle. Get sandpaper, a wrench and a wire brush. Clean them all.

4 people found this helpful.
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100

Brook answered 7 years ago

i have the same issue. i've had the battery, transmission ignition switch all checked and still at a loss if you figure it out please let me know. my headlights have done the same thing too

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ScottU17 answered 6 years ago

Had to replace the starter, care starts but now lights dim and radio shorts out, new battery makes no difference

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50

GuruXXPTK answered 6 years ago

I have a 2006 Hyundai Sonata V6 3.3 L motor and the problem is the transmission once the check engine light comes on. The car stays in 3 gear. I used the OBO to turn off codes. It drives correctly and shifts right. But once the check engine light returns it does it again. Now I see codes P0732 and P0734. What can I do to correct the problem?

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40

rachel lynn answered 5 years ago

For the head lights issue...I read up on it because I to. Have the same issue..and it says it's called a high arching issue..Soo basically you have to replace all the grounds wiring on the engine..4 grounds 4 wires....simple maybe..you just need to know wat the heck your doing..says it takes only about an hour to do

4 people found this helpful.
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Your Answer:

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