Question about 1999 Chevrolet Express

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Engine idles high when first started after tune up and takes long for kick down

1999 chevy van 1500 express 350

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  • edsan 58 Sep 07, 2008

    problem was maf air flow sensor

  • edsan 58 Sep 07, 2008

    problem solved maf sensor high idle problem solved thanks every one 1999 chevy express

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  • Chevrolet Master
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Hi edsan 58,

Most gas injected engines run at a higher speed when started from cold....It's the cold start application working....As long as the idle speed returns to normal within a minute or two....longer when the weather is colder.....nothing to worry about

Regards Johngee10

Posted on Sep 06, 2008

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