Question Answered: Rough Idle
April 10, 2015, 09:01 PM
Hold light is because you unknowingly pressed a button under the top of the transmission lever (just press it in and the problem is solved). This hold is there for driving in snow and to keep it in a particular gear, etc..
It could be an MAF sensor, which will either need to be cleaned or replaced. My suggestion is to replace it with one that has a minimum of 3 years of warranty. They are not hard to replace (be careful not to break the electrical connection when disconnecting). Also check PCV Valve, spark plugs and their wires. Use a fuel injector cleaning when changing oil.
Problem Reported: Idles Rough, Misfires, and Possible Check Engine Light
October 05, 2010, 04:57 PM
<p>A loose or corroded ground terminal on the driver's side of the cylinder head can cause a rough idle, misfires, and there may be trouble codes. Restore the ground to the cylinder head.</p>
Problem Reported: Squealing In Timing Cover Area When Cold
October 05, 2010, 04:47 PM
<p>The <a id="ce_121" class="ct_selected tooltip" href="/timing-belt-tensioner">timing belt tensioner pulley</a> may make a squealing noise from the <a id="ce_10183" class="ct_selected tooltip" href="/timing-cover">timing cover area</a> on cold startup. An updated tensioner with a thicker mounting bracket to eliminate vibration may be needed to solve the problem.</p>
Problem Reported: Software Update Available to Correct Transmission Issues
May 27, 2010, 11:09 AM
<p>Reprogramming the transmission control module with the latest Kia transmission software may fix abnormalities in the automatic transmission and erroneous transmission-related <a id="[object HTMLInputElement]" class="ct_auto care advice tooltip" href="/understanding-the-check-engine-light"><span class="ct_auto care advice tooltip">Check Engine Light</span></a> illumination. Software updates are commonly most effective on newer vehicles. Higher mileage vehicles may exhibit a similar symptom caused by a component failure. However, whenever major transmission repairs are performed the transmission software should be checked and updated as necessary.</p>