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Buzzing sound under the hood when accelerating

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  #1  
Old 06-09-2011, 09:58 AM
talthyren
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Default Buzzing sound under the hood when accelerating

First of all, this is much more noticeable when its cold, first started in the morning, and it only really happens when you accelerate hard. if your just gently accelerating it doesn't really happen.

Sounds kind of like power steering whine, but louder and more metalic....cant really describe it any better than that.

Only happens from about 10-40KMH (First gear)

EDIT: I recently had the Catalytic replaced, and it seemed to start to happen after that....could it be exhaust rubbing somewhere?

EDIT#2:

- Only happens when initially accellerating, up to about 40-50kmh
- Sounds metalic
- Coming from engine area, drivers side, maybe the wheel area, but I dont think its the wheel.
- Not audible if lightly accelerating, Very audible if accelerating hard

Anyone have any ideas?

99 Ram 4x4, 1500
 

Last edited by talthyren; 06-09-2011 at 03:05 PM.
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  #2  
Old 06-09-2011, 10:12 AM
dodge dude94
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could be a bad pulley
 
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Old 06-09-2011, 10:15 AM
talthyren
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I recently had the Catalytic replaced, and it seemed to stat to happen after that....could it be exhaust rubbing somewhere?
 
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Old 06-09-2011, 10:23 AM
dodge dude94
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nah, if it were exhaust it would buzz all the time.
 
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Old 06-09-2011, 10:24 AM
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could be.. makes sense.. those heat shields can be a little loose, and also- it's a pretty tight area so they could be hitting frame or even the hanger could not have a good weld..

but you said under the hood?
 
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Old 06-09-2011, 10:32 AM
talthyren
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Originally Posted by drewactual View Post
could be.. makes sense.. those heat shields can be a little loose, and also- it's a pretty tight area so they could be hitting frame or even the hanger could not have a good weld..

but you said under the hood?
Thats where I think its coming from...its hard to tell, because I can only make it make the sound when im driving sorry if Im being confusing..
 
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Old 06-09-2011, 10:58 AM
pcfixerpro
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I'd check for a bumble bee in the grill
 
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Old 06-09-2011, 11:03 AM
talthyren
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My worry is that its something in the transmission...
 
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Old 06-09-2011, 03:04 PM
talthyren
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Bump!

Halp


- Only happens when initially accellerating, up to about 40-50kmh
- Sounds metalic
- Coming from engine area, drivers side, maybe the wheel area, but I dont think its the wheel.
- Not audible if lightly accelerating, Very audible if accelerating hard
 
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Old 06-09-2011, 03:53 PM
TheycallmeLaramie
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I had a buzzing sound like this, check your pcv valve breather and pcv valve ontop of valve covers 3$ fix for me.
 
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