Grinding Noise Under Passenger Seat

[Daltonator1007]

I own a 2003 mustang gt and have been hearing a nasty grinding, metal on metal noise underneath my car. Been told it wasn't my u-joints, rear end is good, tranny has no metal shavings, just replaced the tranny mount, and I have no idea what it could be so i need your help!!!!

 

[Daltonator1007]

it grinds when there is weight in the car , or if i hit a bump and the car buckles down

 

[Gary Ugarek]

I assume you have an upgraded suspension. But just in case have you inspected it. on my 2000, I had a noise like that and during the restoration process I lowered it. When the tech removed the front springs one was completely broken the other had cracks in it.

Never hurts to inspect your u joints, but the last time I had a u joint go bad on an SN95 it made a clunk type noise, not a grinding noise.

 

[Mattstang04]

Do you have a aftermarket midpipe or damaged/bent exhaust or heatshields? I had a clamp improperly aligned on my x pipe and it rattled and ground against the subframe. Very well could be the suspension too, as previously noted.

 

[Daltonator1007]

well ive gotten up underneath it and couldnt find anything grinding or anything

 

[Daltonator1007]

the grinding was happening way before i lowered it..... the sound is right underneath my seats as previously noted and is very large noise and annoying

 

[1987stangman]

When I did springs on my old 96' GT I too had a broken spring on the front PS. Surprised me that it never made any noise or acted funny on the road at all.

 

[Gary Ugarek]

Seems like the SN95s are quirky. Mine made noise, squeaked spit ground you name it. Upgraded the suspension with my restoration project and now I just have the normal but annoying interior trim squeaks and rattles which I will attack in due time.

Hell my 13 has a nosy driver door, hit the small bump in the road and the door chatters. Dealer Body shop has adjusted it 3 times. It quiets down then within a few hundred miles it get chatty again.

 

[trinity_gt]

OP, does the car have subframe connectors and/or seat brackets?