Hi, 6 months ago I fitted a new tensioner with a new belt, all seemed ok. Then about a month ago the belt started to squeal again. Having looked at the belt while the engine was running, the tensioner was twitching all over. As i didn't buy a genuine part I suspected the tensioner and changed it again but the squeal was still there at full lock!! So havin read the post from "littledaz" last night I contacted Ford for a price, they said I had to buy a new alternator!! So I removed the alternator and took it to local alternator specialist who fitted a new pulley and tested it for