Blazer sputters every morning

1999 CHEVROLET BLAZER
156,000 MILES
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HOWARDPOSNER
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I have a 1999 Chevy Blazer and for awhile now, every morning when I go to start it, it sputters and misses until I start driving it for about 20 minutes then it stabilizes and drives fine. What is causing this?
Sep 4, 2012 at 2:04 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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KHLOW2008
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Seems like the cold start system is not working correctly. Are there any trouble codes?
Sep 4, 2012 at 2:29 PM
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HOWARDPOSNER
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there are no trouble codes...only thing that comes on is the service engine soon light, after a couple of days it goes away. Something else to add, I especially have a hard time when it rains the night before, but again for about driving around for 20 minutes it clears right up and drives fine.
Sep 4, 2012 at 4:13 PM
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KHLOW2008
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  • 41,814 POSTS
That indicates trouble codes. Get a scan to check for trouble codes. Most parts stores provides free scanning services.
Sep 4, 2012 at 4:32 PM