156 vibration. HELP!
Ok here gos. My car vibrates either from the exhaust or the engine. But i cant tell as it only happens under load. At first i thought it was the flexi pipe but i replaced the pre cats including the flexi pipe. Which did not work. Luckily the cats needed doing anyway. Then i thought it was the centre cat but that seems ok. So now im completely oblivious as to what it is. And it only does it under load so i cant hear where it is coming from stationary. F?cking typical. There is a small leak from the manifold gasket. Would this cause a vibration.? You can feel it through the floor pan from 3000 rpm all the way to red line. And it is driving me nuts. I have taken it to loads of mechanics whe either dont want to know or say the obvious which i have already covered. Can someone on here help with any ideas. This is ruining my driving experience as the car sounds sh@t. Cheers.