I am new here with a 2003 Dodge durango 5.9l v8 2wheel drive. The car is making a whistling noise when in idle. The noise is coming from the iac valve. The valve was changed recently but the noise came back, is it possible that the brand/type of valve used is just not extending or fitting into the area enough and is causing air to leak thus the whistling noise? It is not a vacuum leak and definately comming from iac throttle body area. when I disconnect the iac there is no whistle. Any ideas?

 

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Dusty

 

Welcome to the site. I will move this thread to the first generation Durango section,
FF

 

Clean the Throttle Body with Carb Cleaner or Throttle Body Cleaner (making sure you clean the IAC port REALLY good), get a new TB gasket and reinstall.

 

Did you make sure there was an o-ring on the new iac motor? Or are talking about the PCV valve?

 

There is an o-ring on the new iac and it is definitely coming from the iac port.

 

There should be a gasket on the IAC. Double check!

 

i would think it would idle funny if it were leaking around the iac .. but i could be wrong .. just double check the gasket/o-ring and clean it well inside that port and around it on the mating surface..

 

@hydrashocker, there is not gasket on it only an o-ring.
@neogeo, Sometimes it does idle a little weird, kind go up in rpm then down, but nothing really major but noticeable to me.

 

Then the O-ring is what we are looking for. It's there!


Next, have you cleaned the Throttle Body like I asked?