The Ford Barn

CallmeBob · 02-27-2026, 05:21 PM

I've got a 41 Mercury coupe, motor and trans was rebuilt a little over two years ago, drove several times with no problems. Today I went for a drive it shifted good through 1st and 2nd gears with no noise, but when I shifted into 3rd it instantly started making a noise like a whine with a light rattle mixed in. It don't matter how fast or slow I'm going, if I have clutch pushed or not the sound is still there. When I put it back in 1st or 2nd the sound goes away. Can anyone tell me what may cause this, and a easy way to fix it without pulling the trans.

02-27-2026, 05:21 PM	#1
CallmeBob Junior Member Join Date: Feb 2023 Posts: 26	3rd gear noise I've got a 41 Mercury coupe, motor and trans was rebuilt a little over two years ago, drove several times with no problems. Today I went for a drive it shifted good through 1st and 2nd gears with no noise, but when I shifted into 3rd it instantly started making a noise like a whine with a light rattle mixed in. It don't matter how fast or slow I'm going, if I have clutch pushed or not the sound is still there. When I put it back in 1st or 2nd the sound goes away. Can anyone tell me what may cause this, and a easy way to fix it without pulling the trans.