i thought my engine mounts were loose when i felt a vibration through my gas pedal and my exhaust tailpipe used to dissappear under the rear bumper when i brought the clutch up fast to the biting point with the handbrake on.
so i took it citroen and they said i needed a new fixing kit for the exhaust and the vibration was "something that was pressing against the inlet manifold" <<< there words

a bit vague or what

but it took em 2 hours 2 fit the fixing kit and 2 days to sort out the vibration

and they said the engine mounts were fine ...lol
cars great now..