2001 pontiac montana what does this hose do

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  #1  
Old 08-28-16, 04:51 PM
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2001 pontiac montana what does this hose do

2001 pontiac montana v6. There is a plastic hose/pipe that goes from the air cleaner hose to somewhere in the bowels of the engine. It is disconnected where it goes into the engine and i cant get my hand down there to feel where it goes. Once i remove the egr valve i should be able to get it i think. But what is it? Could this hose being disconnected be why it's running rougher then it has been when sitting for days or wet from rain and sputtering and under power till it warms up? I plain on replacing the purge valve also.
 
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Old 08-28-16, 08:12 PM
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Ummmmm..... an answer would require guesswork on our part.

Is it small like 3/16" or 1/4"..... like a vacuum line or is it larger ?
If it's a vacuum line then it could be causing the engine to run rough.
If it is a vacuum line it should be shown on a hose routing decal on the radiator support.

As always..... pictures can be very helpful. http://www.doityourself.com/forum/el...-pictures.html
 
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Old 08-28-16, 11:12 PM
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Here is a link to the picture of my engine I found online. If you look towards the middle right you see the big hose/duct that leads from the aircleaner box. There is a 1/2 inch dia hose/pipe that comes off the top of the duct near the wiring harness near where it connects to the motor and runs over the top of the engine and under the EGR valve at the back. That is the hose that is disconnected on the Van. https://upload.wikimedia.org/wikiped...400_engine.jpg

Name:  2005_Pontiac_Grand_Am_3400_engine.jpg
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Last edited by PJmax; 08-30-16 at 12:35 AM. Reason: corrected text - added pic
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Old 08-29-16, 01:55 PM
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I ment middle right not middle left. Cant edit post.
 
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