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| Normal noise or Not? http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=1&t=82557 |
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| Author: | Mthigh_Freak [ Tue Jul 07, 2015 11:21 pm ] |
| Post subject: | Normal noise or Not? |
Have a 2004 Jeep Liberty with roughly 129K on it. I noticed every time I am in the engine bay and pull the throttle, I hear a hissing/sucking noise, Link to a video of it. Sounds like it is coming from around the intake manifold, possibly behind it. Wondering if any one had some ideas on what it could be or what to look for before I just send it out to the shop. https://www.youtube.com/watch?v=814eSUeW5Gg |
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| Author: | RenKJ [ Wed Jul 08, 2015 12:11 am ] |
| Post subject: | Re: Normal noise or Not? |
Couldn't get it to load, but the first things i would check is the tubes feeding the pcv and ccv, the pcv comes from your oil filler neck and the ccv comes from behind the valve covers and goes to the airbox, these all use intake pressure to work properly, alao check the brake booster line for tear or not being attached properly to the intake manifold, hope you figure it out |
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| Author: | Over [ Fri Jul 24, 2015 4:35 pm ] |
| Post subject: | Re: Normal noise or Not? |
Normal noise The sound is the suction / vacuum pressure behind the throttle plate being relieved when you actuate the valve. |
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| Author: | Gageraid [ Sat Jul 25, 2015 2:00 am ] |
| Post subject: | Re: Normal noise or Not? |
Sounds good and normal to me. |
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| Author: | The_dealer [ Wed Jul 29, 2015 11:37 am ] |
| Post subject: | Re: Normal noise or Not? |
Normal. Is it just me does it sound like it's ticking? Sent from my G870a on 38's. |
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