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Matt, Engineer
Category: Kia
Satisfied Customers: 20380
Experience:  Mechanical Engineer BEng Hons22 years experience in car engine industry, 10 years in formula 1
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When I am in park everything sounds good on 2003 Sedona. when

Customer Question

when I am in park everything sounds good on 2003 Sedona. when I shift to drive it sounds like the air intake is sucking air
JA: Sometimes things that you think will be really complicated end up being easy to fix with a Kia. The Kia Mechanic I'm going to connect you with knows all the tricks and shortcuts. Tell me a bit more about what's going on so he can help you best.
Customer: it hesitates shifting, after you drive for a while the noise dimishes
JA: Are you hoping to fix this yourself?
Customer: yes
JA: Great! What have you tried so far?
Customer: nothing
JA: Is there anything else important you think the Kia Mechanic should know about your Kia?
Customer: not that I know of
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Submitted: 6 months ago.
Category: Kia
Expert:  Jared D replied 6 months ago.
Have you checked the intake ducting for tears? We replace these all the time on the sedona. It won't be noticeable until the engine flexes a little when you put it into gear. Then the ducting stretches and opens up any holes or cracks. Sometimes you will get a system lean check engine light as well. The first thing I would do it look at the rubber flex portion of the intake duct and see if it is torn.Let me know how it looks.
Expert:  Jared D replied 6 months ago.
This part right here:
Customer: replied 6 months ago.
the intake ducts look ok
after letting it idle for about 10 minutes the noise is no longer there
Customer: replied 6 months ago.
(Posted by JustAnswer at customer's request) Hello. I would like to request the following Expert Service(s) from you: Live Phone Call. Let me know if you need more information, or send me the service offer(s) so we can proceed.
Expert:  Jared D replied 6 months ago.
Are you getting a check engine light on the dash?
Customer: replied 6 months ago.
Customer: replied 6 months ago.
can you call me(###) ###-####
Expert:  Jared D replied 6 months ago.
I'm sorry. I'm unavailable for a phone call. I'll opt out and see if someone else is.
Expert:  Matt replied 6 months ago.
Hello another expert hereThis could be an airleak after the airflow meter, any air dragged in here isn't 'seen' by the ECU and so not compensated for and can lean the engine out and can also allow the engine to rev up when not desired causing rough running.As its a mechanical fault it tends not to turn on the fault light and you can sometimes hear a 'hissing' noise with the engine running. Check the hose clips for tightness and inspect the trunking for any cracks or splits and also all the vacuum system, the small bore pipes and fittings for cracks and missing parts. The best way to locate a leak is to have the engine running and warm and then spray lighter gas /propane around each joint in turn. If the engine rev's up you've found your leak.Now you might think that spraying lighter gas around a hot engine isn’t wise, however the flash /ignition point of gas is about 400°C so you need a naked flame or spark to set it off and I’ve used this method for many years without incident.Work your way through each possible joint one at a time and you should find it. I use a slightly flattenedpiece of brake pipe and some rubber hose from the can of lighter gas to provide a spraying 'wand' and allow a direct blast of gas into each area, especially those difficult to reach with large implements. It’s also worth getting the fuel pressure checked as if this is low due to a blocked filter or faulty regulator or even a poorly pump will all result in insufficient fuel being delivered to the engine Might also be worth cleaning out the idle speed control motor / valve as these get clogged up with carbon and some brake cleaner washed through helps free things off. Might also be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can do a quick fault find if you unplug the meter and run the engine without it.if the engine condition is the same then chances are the meter or the connection to it is faultyAir leaks are very temperature dependent as gaps can open or close up as things expand with heat, so the weather and engine temperature can effect them. This leads them to be quite intermittent in the case of mild leaksits also worth cleaning the airflow meter by removing it from the car and spraying the exposed sensor wires inside the tube with a brake or switch cleaner - ensure that the cleaner is one of the old fashioned, non Eco type that does not leave a residue On no account touch the sensor wires with anything physical as they are extremely fragile
Expert:  Matt replied 6 months ago.
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