Engine Bang, Knock, during shifting WOT acceleration

[raffifuzza]

Same here, installed the 27WON 90a poly rmm, and it still happens when I launch or shift hard enough from 1-2 more commonly and sometimes 2-3 if I’m really slamming it. I’d really like to know what this noise is if anyone found out lmk please !

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[CTR_Stormtrooper]

If you have an aftermarket Coolant expansion tank, it might be making contact with the passenger motor mount.

If you do have one, I heard adding spacer washers to raise it slightly will help with clearance.

Do you have an aftermarket expansion tank?

Same here, installed the 27WON 90a poly rmm, and it still happens when I launch or shift hard enough from 1-2 more commonly and sometimes 2-3 if I’m really slamming it. I’d really like to know what this noise is if anyone found out lmk please !

 

[raffifuzza]

If you have an aftermarket Coolant expansion tank, it might be making contact with the passenger motor mount.

If you do have one, I heard adding spacer washers to raise it slightly will help with clearance.

Do you have an aftermarket expansion tank?

I do not, it is original. I’ll check the mounting tomorrow and make sure it’s not that anyways; probably isn’t but Im testing everything because I cannot find what this sound is for the life of me.

 

[CTR_Stormtrooper]

I do not, it is original. I’ll check the mounting tomorrow and make sure it’s not that anyways; probably isn’t but Im testing everything because I cannot find what this sound is for the life of me.

Well, it seems the only thing we have in common is the aftermarket rear motor mount. After we got it installed, then we got that noise. I suspect it might be the axle or the intermediate shaft. If not that it must be something loose or not torqued on the Subframe. I believe the RMM is part of the subframe. I'm lost as well

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