Just wanted to know if anyone has had a rattle that sounds like a bird chirping. I have a feeling that is coming from what remains of CAT heat shield. But I thought I would see if anyone else has had this problem.
I had that exact comment about birds under my car from the performance shop. I asked them to take a quick look and they thought it was in the tranny. Took it to Ford and it turned out to be a broken exhaust braket near the engine. I got it fixed for free and no problems since. Good thing to cause it was driving me nuts.
I have the same problem, and the heat shield was hanging off the cat, so i riped that off and it still makes that sound, when i take mine to get the oil change I will make them check it out, damn car is still new and problems already.
I thought my broken exhaust bracket was the belts or pullies to. It made a louder schreeching noice at lower rpm and seemed to go away in the higher. The brackets have been braking in a lot of the svt cars and ford's new one is reinforced. Just my 2 cents
I had the exact same problem this last summer. It was a broken exhaust bracket and the dealer fixed it no problem. There is an updated part for it that is reinforced to help it not break again. I thought for sure it was a pulley too, but it was the exhaust. It took them 3 trips to the dealer to get it fixed and now it sounds great.
I dunno, if it's the same problem I had, it makes me think this is a belt/pulley issue. It happened a little when I had the stock pulley, more when I went to the shorter belt and the AF/X pulley. I bought a belt 1/2" smaller (81"), and the squeaking stopped totally. May be a problem with the belt tensioner. Have someone hit the gas a bit while you turn the bolt on the tensioner, assuming you hear it when you rev a bit.