check engine light fails to come on

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

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?

3 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 people found this helpful.
30

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

3 people found this helpful.

i have a wheel chair van and my engin light is on dose any one know why i tryed to changed the gas cap but that was not the problem what would it be

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