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Low rumble sounds like subwoofer when hitting gas?


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Positivevariable
New User

Aug 22, 2023, 7:03 PM

Post #1 of 6 (1530 views)
Low rumble sounds like subwoofer when hitting gas? Sign In

I met with a guy to look at a 2004 Mercury Monterey Van. When checking it out and test driving it here is what happened. When I hit the gas it would make a low boomf rumble sound that you could feel as well. Sounded exactly like someone was driving by with a sound system and a subwoofer. If I had it parked and pressed on the gas it would make the sound. Then if I let off of the gas as it re approached idle it would make the sound. When driving, it would make it as well and when accelerating it would do it for what seemed a longer period of time. What was causing it? The exhaust? Iwas trying to figure out what the problem was. Thanks for any input.


(This post was edited by Positivevariable on Aug 22, 2023, 7:38 PM)


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Aug 22, 2023, 7:33 PM

Post #2 of 6 (1526 views)
Re: Low rumble sounds like subwoofer when hitting gas? Sign In

Yes, an exhaust leak would fit your description but there is no way for us to accurately diagnose a sound over the Internet.

You need someone knowledgeable to listen to it in person.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Positivevariable
New User

Aug 22, 2023, 7:44 PM

Post #3 of 6 (1519 views)
Re: Low rumble sounds like subwoofer when hitting gas? Sign In

Ok thank you. Another thing worth mentioning is that the sound was not consistent or constant. For example as I hit the gas while parked as the rpms went up it may make the noise once or twice, boomf, boomf. Then nothing. Then as I let off as it approaches idle and the engine got quieter it would happen again. Boomf. Does that still fit with an exhaust leak? Thank you


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Aug 22, 2023, 7:48 PM

Post #4 of 6 (1516 views)
Re: Low rumble sounds like subwoofer when hitting gas? Sign In

An exhaust leak will be louder when the engine is under load (acceleration) and less when not driving.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Positivevariable
New User

Aug 22, 2023, 7:56 PM

Post #5 of 6 (1511 views)
Re: Low rumble sounds like subwoofer when hitting gas? Sign In

Will it be intermittent like that? Or will it be a constant rythmic noise?


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Aug 23, 2023, 3:52 AM

Post #6 of 6 (1482 views)
Re: Low rumble sounds like subwoofer when hitting gas? Sign In

It will do whatever the engine is doing. It's also not the only possibility as things like the air pump can also make noises like that.

Like I said in the first place, this isn't something you can resolve over the Internet. Someone has to listen to it in person.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.







 
 
 






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