2004 Hyundai Sonata Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2004 Hyundai Sonata

2004 Hyundai Sonata Problems

Parking lights don't turn off

    Parking lights not turning off intermittently or all the time. The common problem is with the cabin fuse box.  Complete replacement of the assembly is necessary to fix the problem.

Rough Idle Due to Faulty EGR Switching Valve

On the 2.7L V6 and 2.4L 4 Cylinder, a defective exhaust gas recirculation (EGR) switching valve may cause an intermittent rough or unstable idle engine.

Improved Timing Chain Tensioners Available to Correct Noise on Startup

If you experience excessive engine noise on startup (after the engine has been turned off for several hours) that lasts for more than five or six seconds, turn off the engine and check that the engine oil level is correct. If the oil level is correct, the noise may be caused by the timing chain tensioner. Hyundai has an improved tensioner to correct this problem.

See More Problems (8)

2004 Hyundai Sonata Questions

DC Emissions says the car has 4 sensors that needs to be changed. Can you please give me the specific part numbers for the sensors? With warm regards, (1 answer)

This was my reading when it went through Emissions.
Monitors Not Ready:
Catalyst
Oxygen Sensor
MIL Remains lit at key-on-engine-running
MIL Commanded On
1 Trouble Code Reported:
P0056 HO2S Heater Circuit Bank 2 Sensor 2

What is causing the ABS & Hand Brake light to stay on on my instrument console. (1 answer)

When I start the car from a cold start the ABS & Hand Brake Light goes off. After a warm start the ABS & Hand brake light stays on.

Honda Accord 2003 or Hyundai Sonata 2004 (1 answer)

I am looking for my first car, and have today been out trying a Honda
Accord 2003 (90,000miles, 4cyl) and a Hyundai Sonata 2004
(88,000miles, 6cyl). Both at the price of $3,500. The Honda seemed more
smooth in its drive, however, it needs a windshield repair due to cracks
and a new back l...

See More Questions (161)

2004 Hyundai Sonata Recalls

Recall 09V124000
HYUNDAI IS RECALLING 188,282 MY 2001-2004 SONATA AND MY 2001-2004 XG300 AND XG350 VEHICLES ORIGINALLY SOLD IN OR CURRENTLY REGISTERED IN THE STATES OF CONNECTICUT, DELAWARE, ILLINOIS, INDIANA, IOWA, MAINE, MARYLAND, MASSACHUSETTS, MICHIGAN, MINNESOTA, MISSOURI, NEW HAMPSHIRE, NEW JERSEY, NEW YORK...

See More Recalls (1)

2004 Hyundai Sonata Reviews

I bought my 2004 Hyundai Sonata in the Summer of 2004. It had 17 miles on it. It was the first car I had ever bought without test driving! My husband said I would love it (he was a salesman for a Hyundai dealership), and I DID! It is the best car I have ever owned. Very low maintenance and the little things that have had to be repaired, ie., electric side mirrors, some fuses, gas door won'...
We have owned this car for 5 years -63000 miles and it has been pretty good car. Just a few problems with the electric motor on the mirrors; A/C fan motor and switch; and the horn went bad. One thing I hate about this car is the windshield wipers-they don't go fast enough-terrible in these Florida storms! Plus, the seats are not really all that comfortable. But, all in all I'd buy another one-...
I bought the car new and it still is like new. I had the brakes done, transmission maimtinance, and just the basics up keep. I love to drive it. It has such great pic-up , even at 135,000 miles. It rides like it is gliding above the ground. The most smooth ride I have ever experianced.As smooth as the Lincoln we had. I would ecomend the Hyundai to everyone.

See More Reviews (7)