Service Engine Soon Light

[kimoZ71]

I have a Service Engine Soon light. On a 1996 Silverado 5.0 L is there a specific differance to these codes than the Check Engine Light codes.

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[opie4487]

check engine light/service engine soon light canbe anything. in order to read your codes, you need a reader...I think you can buy them at an autoparts store(or pay for a shop to tell you)
If you do buy one. there is a port under the driver side dash. plug it in and turn the ignition on(do not start your truck) your service engine light will flash a certain number of times. match the number in the book and you will find your problem. after you fix it, you will need to reset your computer.
here is an example of one: http://www.amazon.com/Equus-3123-GM-.../dp/B000EVU8C0
good luck