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Engine revving high when starting

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Old Jul 18, 2011 | 08:59 AM
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Default Engine revving high when starting
Hello I'm having really high engine idle when I start my 98 blazer. It started yesterday and happens everytime I start it now. Any ideas?
 
Old Jul 18, 2011 | 09:20 AM
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Are there any trouble codes?

Could be bad/dirty IAC or a vacuum leak
 
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