Had belt replaced on my 2005 KIA Sedona V6. Now when I start the engine and first put the transmission in drive or reverse I get a rumbling noise until I increase RPM up to about 1000. After driving a short distance the noise is not there any longer even at the lower RPM (about 700 or 800 -idling in gear). Also my tests show that warming up the engine (belt) for about five minutes removes the noise. One more test: When I am in gear and the noise is there, I can make the noise go away by merely increasing the the RPM to about 1000 with my foot on the brake. What's the problem?

SOURCE: at about 1500 rpm vibrates but stops as it passes 1500rpm

Obviously a couple possibilities here. Just trying to help. Most commonly motor mount getting worn out will do this. I found statements made about some kia's needing a new crankshaft pulley and bolt for similar condition but not necesarily your engine. Youd have to call kia on that one. Hope I helped. Thanks

SOURCE: i have a kia sedona 2002 and it runs above tickover but dies when

its more than likley the idle conrtoll valve got a local garage and ask them to put it on the computer it will cost you about 20 pounds but it will pin point the problem but im sure thats whats wrong

SOURCE: when my kia sedona is cold and I shift to drive I

First check for codes,transmission tune up is usually the solution for problems related with cold issues