# Service engine soon light is on

**URL:** <https://community.cartalk.com/t/service-engine-soon-light-is-on/55070>\
**Category:** Power/Fuel\
**Tags:** f350, diesel, ford\
**Created:** [September 13, 2010, 4:54pm UTC](https://community.cartalk.com/t/service-engine-soon-light-is-on/55070 "2010-09-13T16:54:30Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![davidxray](https://avatars.discourse-cdn.com/v4/letter/d/d07c76/32.png) [@davidxray](https://community.cartalk.com/u/davidxray)\
**Post date:** [September 13, 2010, 4:54pm UTC](https://community.cartalk.com/t/service-engine-soon-light-is-on/55070/1 "2010-09-13T16:54:30Z")

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I plug in my OBD2 computer under the dash. I’m getting codes PO676 and PO683. I changed #6 glow plug and the relay for the glow plug. I reset the computer but the light came back on with PO676 code. Can you please help.

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**Author:** ![Joseph\_E\_Meehan](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/joseph_e_meehan/32/21_2.png) [@Joseph\_E\_Meehan](https://community.cartalk.com/u/Joseph_E_Meehan)\
**Post date:** [September 13, 2010, 6:27pm UTC](https://community.cartalk.com/t/service-engine-soon-light-is-on/55070/2 "2010-09-13T18:27:15Z")

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Sorry I don’t know those codes, but just for the record, that should have been a CEL (Check Engine Light) the Service Engine soon Light is is something different. ?🙂