2002 Hyundai Santa Fe Repair Question
Problem with Santa Fe
This may be an issue concerning the IAC (idle air control)system, also an idle surge can be a vacuum leak as well, i would start with a scan for any fault codes and get the AIC and throttle body cleaned, start here.
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It could also be due to the engine misfiring intermittently. Get a scan to check for trouble codes if the MIL is indicating.
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