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rud3dog
Member Since: 15 Apr 2021
Location: Bellevue
Posts: 19
  
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| LR3 engine making odd noises |
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My 2006 LR3 with V8 4.4 liter engine started to make odd noise when the gas pedal is pressed that I can only describe as "buzz saw" like noise.
The engine will make this noise when I start the engine and slowly fade away as the RPM levels, but I will hear the sound again every-time I press the gas pedal.
Here is the link to a short video showing the engine running. you will be able hear this noise as soon as I step on the gas pedal at around 4 second mark.
https://youtube.com/shorts/I2qU1bHtU44
To me, it looks like it is coming from the pulley or the front/upper side of the engine but I am not too sure.
I tried using a long screw driver to identify where this noise is coming from without any success.
I have already replaced:
-Alternator
-Idler pulley (one on the left hand side when standing in front of the car)
Since I can hear the noise when the car is parked, so it cannot be the wheel bearing.
I have replaced one of the wheel bearing, and they sound very different when they are going bad.
I am wondering if anyone had a similar experience?
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 6th Feb 2023 10:51 pm |
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Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10379
 
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Remove the belt.
Start the car briefly
See if it still makes noise
If no, check all the accessorys for smoothness
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| 6th Feb 2023 11:10 pm |
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rud3dog
Member Since: 15 Apr 2021
Location: Bellevue
Posts: 19
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I have ordered a fan clutch tool. I will update this post if I find anything.
I was waiting to see if the sound gets worse, which will make it easier for me to spot the source, but on the other hand.. I did that with my alternator and the timing was very bad.
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| 7th Feb 2023 12:41 am |
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rud3dog
Member Since: 15 Apr 2021
Location: Bellevue
Posts: 19
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Looks like the fan clutch is not coming out without a fight.
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| 11th Feb 2023 7:05 pm |
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rud3dog
Member Since: 15 Apr 2021
Location: Bellevue
Posts: 19
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Problem solved, it was the water pump.
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| 17th Feb 2023 8:37 pm |
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defector
Member Since: 23 Feb 2009
Location: Greater Manchester
Posts: 1423
 
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Noticed your location, is there a place called Bellevue, or are we talking the institution in New York 
I just remember the name from watching 'Barney Miller'
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| 17th Feb 2023 9:43 pm |
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rud3dog
Member Since: 15 Apr 2021
Location: Bellevue
Posts: 19
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 Yes, it is a city in Washington State, right next to Seattle.
Looks like there is a hospital in NY called Bellevue.
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| 17th Feb 2023 9:52 pm |
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