Shered

I have a 03 Blazer 20000 k the service engine soon light has came on. I have checked all the fluids, all are full and it runs smooth. Its 1000 mile before next oil change. What would be the most likely thing that would make the light come on? I'm taking it to the shop for repair as its still under warranty . Would just like to know some of the things that causes this . Thanks

mike2004tct

Is your gas cap on correctly?

You might want to invest in an ODBII reader. The gauge will give you the codes that cause the light to go on, and there's usually a list of explainations included with the reader, or just post the codes here.

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It's my opinion, don't take it personal.
'04 T&C, '97 Blazer, '97 Sunfire, '85 Vette, '79 Civic, 94 FLSTC

s10blazerman4x4

What was the code?

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1991 Chevy S-10 Blazer 5.7 V8 RIP
1999 Chevy Blazer 2dr 4.3--> If GM engineered something to fail on this beast it has or will. Repairs include w/in first 30 days of owning it: P1870, left front wheel bearing, gas cap, rad cap, idler tensioner, seat handles, and the list goes on.

http://www.automotiveforums.com/vbul...d.php?t=890449

Chime in ^ with any suggestions.

Shered

I'll check the gas cap . Will report back later. Thanks

rlith

the code could be a thousand things. Stop by Advance autoparts or autozone and they will scan the truck for free. Get the code and come back and tell us what it is so we can help you better.

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95 s10 Blazer, EGR Mod, ZQ8 Steering box mod, 99 Center console shifter mod and more... See everything at www.pghconsulting.net/teal

Shered

OK I'll stop by Auto Zone and see what they say. I checked the gas cap nothing there its on correct.