Purring, growling, gargling noise
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Purring, growling, gargling noise
When I accelerate I sometimes hear this high pitched purring or gargling like noise. It is like a series of noises whose frequency increases with RPMs. I suppose one could also describe it as a high pitched growl.
Any idea what that might be? It is odd that I don't hear it all the time. But I heard it yesterday at the same time I noticed my temp gauge rise slightly from its normal position. I suppose it could be related if the noise is coming from the water pump.
Any idea what that might be? It is odd that I don't hear it all the time. But I heard it yesterday at the same time I noticed my temp gauge rise slightly from its normal position. I suppose it could be related if the noise is coming from the water pump.
The following 2 users liked this post by nickelrw87:
Huskymaniac (08-31-2018),
Ken1997TL (08-30-2018)
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#5
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The sound is really odd. It is like a series of high pitched pulses where the frequency of the pulses is tied directly to the RPMs of the engine. High pitched purring is the best way to describe it. Like a baseball card in a bicycle wheel but high pitched whirs instead of thwaps. I did notice it some again on my way to work after topping of the radiator but much quieter. I will see if it comes back loud again. It was intermittent the whole time.
I can also say that I saw no evidence of oil in the coolant so that is good news. Maybe I just have a slow leak somewhere and got too much air in the system and maybe the original cap was going bad too. I only saw the temp gauge move that one time and barely above 50%. I really hope it isn't the worst case scenario as I already have a Subaru showing similar symptoms.
Last edited by Huskymaniac; 08-31-2018 at 02:55 PM.
#7
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You don't mention what year your RL is?
Aside from that, my 2011 was making some funny noises and I was worried about the propeller shaft. Turnout that I had a loose heat shield on the rear side of the motor.
Aside from that, my 2011 was making some funny noises and I was worried about the propeller shaft. Turnout that I had a loose heat shield on the rear side of the motor.
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Well, my A/C compressor just seized. That was probably the noise I was hearing. Or it was the air in the system. Happy to report no more overheating events since I replaced the rad cap and topped off the radiator. But a new AC system is gonna be expensive. Ugh.
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Not messing with used in this case. Spent $450 for the compressor, condenser, expansion valve and dessicant. Now to see today what the labor cost will be!
#12
I have a similar issue, and had the AC compressor replaced last year..
I'm thinking it may be related to the PS Pump.. Check your fluid, when I Top it up the noise goes away (even though it toggles on and off with the a/c)
just a theory at this point.
I'm thinking it may be related to the PS Pump.. Check your fluid, when I Top it up the noise goes away (even though it toggles on and off with the a/c)
just a theory at this point.
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