check engine light fails to come on

Asked by Mar 24, 2015 at 01:20 PM about the 1999 Chevrolet Astro LT AWD Passenger Van Extended

Question type: Maintenance & Repair

Check engine light fails to come on at all when starting the van, and will not pass smog without it. What are the possible causes?

2 Answers

80

remove the dash board and remove the dash board cover to see if the engine light is not cover wit paper or something else.

1 out of 1 people think this is helpful.
30

why would a check engine light not light up during emissions test ?

3 out of 3 people think this is helpful.

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