Question about 1999 GMC Yukon Denali
99 GMC Yukon Denali - service engine soon light came on today, ot's about due for a 3,000 mile oil change, could that be the reason? just purchased vehicle last Wednesday, please help me
Hello tdamm...No...the service engine soon (SES) light on your yukon is not telling you to change the oil.
This is a warning light that is illuminated when there is a problem affecting the Emission system and the engines computer management (ECM) has detected it from a fault. It could be something as simple as a loose or defective gas cap. If the SES light is blinking, it's more serious....
The yukon needs to be connected to diagnostic equipment (scanner) for fault diagnosis.
You can go to autozone they will hook up an OBD II scanner to your vehicle and explain the codes to you.
Good luck...i hope this helps and will fixya up.
Posted on May 25, 2009
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Posted on Jan 02, 2017
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