air leak sound from engine bay? - JeepForum.com

 
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post #1 of 4 Old 11-02-2013, 04:51 PM Thread Starter
jrich58
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2008 KK Liberty 
 
Join Date: May 2013
Location: Plattsburgh
Posts: 94
air leak sound from engine bay?

Hi all, I have an 08 KK with 66k on the clock. It used to run pretty nicely when I got it about 5 months ago, but seems like sluggish lately, no check engine light or anything, but i do notice a slight hissing type sound when Im under the hood, cant really pinpoint where its coming from. It seems that when you hit the gas, the truck just sounds terrible, like its struggling. Any ideas on what to look for regarding the air leak sound? Forgive me, Im a bit of a NEWB, and would like to try and fix this without a shop as I don't have alot of spare $$ right now.

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post #2 of 4 Old 11-02-2013, 08:54 PM
lfhoward
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2008 KK Liberty 
 
Join Date: Nov 2012
Location: Morrisville
Posts: 889
If you could generally tell us what part of the engine the hissing sound is coming from (Front/rear/drivers/passengers/under, etc.), that could help us narrow it down for you. If mine got suddenly sluggish I'd begin by replacing the spark plugs and air filter, do an oil change, and check the fluids and see if that takes care of it. You could also take it to AutoZone to have them read any pending codes from the engine (even though your CEL isn't on yet).

2008 Liberty Sport 4x4 Automatic
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post #3 of 4 Old 11-02-2013, 08:56 PM
lfhoward
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2008 KK Liberty 
 
Join Date: Nov 2012
Location: Morrisville
Posts: 889
Also at 66K your KK is due for new plugs anyway (every 30,000 miles). Be sure they are copper core plugs (not platinums or E3's) and are gapped properly.

2008 Liberty Sport 4x4 Automatic
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post #4 of 4 Old 11-03-2013, 09:58 AM Thread Starter
jrich58
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2008 KK Liberty 
 
Join Date: May 2013
Location: Plattsburgh
Posts: 94
Hey all, so i narrowed down where the sound is coming from, its somewhere around where the steering fluid filler area is, is that a vac canister to the right of it?
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