Just bought a 99 VT S - ringing trans!!!

[jonnydico]

any one diagnose the following: when idle in neutral transmission is quiet, but when idle in gear sounds like a ringing/slight vib from the front of the car. Cant really hear it at speed. mounts have been done by previous owner. Anyone know what this could be? serious, common?

thanks

[jonnydico]

looking over the forum, anyone know how I can sus out if it is the belt tensioner or something?

[Tsunamix]

Belt tensioners are easy. With the engine running, place a screwdriver blade hard against the pulley axle. Stick the other in in your ear. This is a crude stethoscope. If you can hear the bearing grinding, its the belt tensioner pulley.

[Sabbath']

Engine cover all secure? Forgot to put the engine cover onto a GenIII securely, started it up, idled fine but as soon as i put the car into gear there was a vibration. Finally clicked, nipped up the 4 fasteners and came good.

Even if the cover is tight it may still be vibrating.