cold start problems

1998 HYUNDAI ACCENT
53,000 MILES • 4 CYL • 2WD • AUTOMATIC
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HENDRIX KALLOO
  • MEMBER
  • 1 POST
1998 hyundai accent when engine turns over in the morning idle goes up and down until engine warms up i have serviced the idle control valve and the mass air flow sensor it started with no problem until the next day problem came back
Apr 4, 2011 at 7:09 PM
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KHLOW2008
  • ✓Experienced Mechanic
  • 41,812 POSTS
Do you have coolant losses and overheating issues?

Is the Check Engine Light indicating and have you tried to retrieve for trouble codes?
Apr 5, 2011 at 6:24 AM
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PLATINUMHYUNDAITECH
  • MEMBER
  • 29 POSTS
Check for intake manifold gasket leaks..Pretty common
Apr 5, 2011 at 6:01 PM
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