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Problems for specific Hyundai XG350 years:

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Most reported 2003 Hyundai XG350 problems

 

Verified for the Hyundai XG350

Prior to replacing the automatic transmission fluid (to improve shift quality), make sure that the transmission fluid level is correct. Also, make sure the computer that controls the transmission has the most up-to-date adaptive programming information. When servicing these transmissions be sure to use fluid approved by Hyundai.

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Verified for the Hyundai XG350

A defective exhaust gas recirculation (EGR) switching valve may cause an intermittent rough or unstable idle engine.

6 Reports
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Verified for the Hyundai XG350

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.

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