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2003 Hyundai Sonata Problems

Find the most common issues based on 2003 Hyundai Sonata owner complaints.
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Most Common 2003 Hyundai Sonata Problems

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.
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.
If the automatic transmission does not shift properly and the Check Engine Light illuminates, the speed sensors in the transmission may have failed. The sensors are simple and inexpensive to replace.
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0 Known 2003 Hyundai Sonata Brakes Problems

1 Known 2003 Hyundai Sonata Drive Train Problem

If the automatic transmission does not shift properly and the Check Engine Light illuminates, the speed sensors in the transmission may have failed. The sensors are simple and inexpensive to replace.

2 Known 2003 Hyundai Sonata Electrical & Lights Problems

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.
If the alternator fails, it should be replaced with an improved design which is better able to replenish electrical power to the battery. The new alternator requires a different diameter drive belt.

3 Known 2003 Hyundai Sonata Engine Problems

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.
Premature timing belt failure may result in serious engine damage. When replacing a broken timing belt, it is important to inspect and possibly replace the crankshaft position sensor; it is often d...

0 Known 2003 Hyundai Sonata Exhaust & Emissions Problems

0 Known 2003 Hyundai Sonata Heating & Air Conditioning Problems

0 Known 2003 Hyundai Sonata Maintenance Problems

0 Known 2003 Hyundai Sonata Miscellaneous Problems

1 Known 2003 Hyundai Sonata Suspension & Steering Problem

Concerned about safety, the NHTSA is investigating reports of rust forming at the front suspension mounting points, the frame, and the sub-frame. Some of these vehicles may have been recalled for t...

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Known 2003 Hyundai Sonata Problems & Complaints

If the automatic transmission does not shift properly and the Check Engine Light illuminates, the speed sensors in the transmission may have failed. The sensors are simple and inexpensive to replace.
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.
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.
If the alternator fails, it should be replaced with an improved design which is better able to replenish electrical power to the battery. The new alternator requires a different diameter drive belt.
Premature timing belt failure may result in serious engine damage. When replacing a broken timing belt, it is important to inspect and possibly replace the crankshaft position sensor; it is often d...
Concerned about safety, the NHTSA is investigating reports of rust forming at the front suspension mounting points, the frame, and the sub-frame. Some of these vehicles may have been recalled for t...
Get a Repair Estimate
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RepairPal estimates are guaranteed at over 1,700 quality certified locations nationwide. Learn more
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