Urgent help needed !!Grinding noise during decceleration on V6

[racinreddy]

Hi Guys,

I have been observing a weird grinding noise during deceleration in my stang when I let off the throttle and come to rolling stop. It is an auto transmission. Mostly I drive in S with manual override mode using paddle shifters. Now a day I also feel the transmission being sticky when I try to change gears with paddle shifters.

I initially overseen this sound but now its getting loud as days pass by. As suggestion before I take it down to a dealership??

FYI: Grinding sound exits in all modes D,S,+/- even I could hear it in N when I try to rev the engine :frusty:

All your thoughts and suggestions are much appreciated.

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[TricarboNate]

Does it sound like this?

https://www.youtube.com/watch?v=WzLdFUcpOzc


That's what mine does.... Someone said something about a new design muffler resonator needs to be installed.

 

[racinreddy]

Does it sound like this?

https://www.youtube.com/watch?v=WzLdFUcpOzc


That's what mine does.... Someone said something about a new design muffler resonator needs to be installed.

Bang on!! that's the same sound I am hearing. And to my knowledge thats coming from center section of when engine is mated to the trans under the gear lever.

 

[USMC V6]

Hi Guys,

I have been observing a weird grinding noise during deceleration in my stang when I let off the throttle and come to rolling stop. It is an auto transmission. Mostly I drive in S with manual override mode using paddle shifters. Now a day I also feel the transmission being sticky when I try to change gears with paddle shifters.

I initially overseen this sound but now its getting loud as days pass by. As suggestion before I take it down to a dealership??

FYI: Grinding sound exits in all modes D,S,+/- even I could hear it in N when I try to rev the engine :frusty:

All your thoughts and suggestions are much appreciated.

What did the dealership say?

 

[TricarboNate]

*SSM 45172 - 2015 3.7L And 5.0L Mustang- Exhaust Rattle, Knock Noise*

Some 2015 Model Year Mustang vehicle built on or before 3/30/15, equipped with 3.7L Duratec 4V and 5.0L Ti-VCT V8 engines may exhibit exhaust rattle/knock noise emitting from the muffler resonator. Elevating idle to 1500 RPM and performingthrottle tip-in, tip-out events in neutral will assist in confirming noise concern and is not to be confused with an exhaust leak that was addressed with a previously released TSB on 2015 Mustang 5.0L Ti-VCT V8 equipped vehicles. Updated muffler resonator assemblies are now available to resolve vehicle concern. Reference Workshop Manual Section 309-00B or 309-00C Exhaust System for component location and Removal and Installation procedure.

Most likely that. If you go to the dealer, let us know how it goes.

 

[racinreddy]

Most likely that. If you go to the dealer, let us know how it goes.

Well I guess am one of those lucky ones out there.:headbonk:

 

[racinreddy]

Most likely that. If you go to the dealer, let us know how it goes.

Guess what... you were bang on!! . Just took my stang today to dealership and they confirmed the sound was from the resonator. They have order new resonator from ford and told that it would take 2-3 days for shipment to arrive.

Sad part is I have axle backs and again I need to bear the installation chargers for my Borla stingers once the new exhaust system comes at dealership :doh:

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