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Hyundai Tucson 2008. Gasoline model.

I live in a very hot climate and when I start my car in the morning it studders for a while. If I pump the gas, it disappears and doesn't come back. I experience this pretty much every morning. What could be the cause ?

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  • When you say pump the gas, do you mean Rev the engine high of just give quick jabs on the throttle that don't give the engine time to respond? – HandyHowie Nov 7 '15 at 10:07
  • I mean, while the car in park position, I hit the gas pedal. The rpm goes to 4-5k just for a few seconds and studder stops. – TGG Nov 7 '15 at 10:26
  • Does the shuddering happen with the engine cold or hot? – Zaid Nov 7 '15 at 10:30
  • I live in the tropic island. There is no cold weather. So it is 30 degrees or so. – TGG Nov 7 '15 at 10:33
  • HandyHowie is asking if this happens when the engine itself is completely warm (100+C)? I know it doesn't get that warm where you live ;-) – Pᴀᴜʟsᴛᴇʀ2♦ Nov 7 '15 at 13:59
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I would suggest you need to clean your intake tract, mass air flow sensor, and throttle body, plus change the air filter if you haven't done so recently. I would bet you have some carbon or gunk causing the engine to hesitate in some situations. The idle air control valve may be dirty/sticky causing the issue as well.

Do a complete upper end cleaning and I will bet this issue will be a thing of the past.

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