Re: Does Anybody Know This Sound?
It sounds like it could ? be a vacuum leak, but more than likely it is going to be an exhaust leak venting back pressure.(stopped up exhaust,cat. etc...) It sounds like the exhaust is stopping up after it runs awhile & the cat. gets hot & packed up & therefore you'll have exhaust back pressure. If you have someone that will help you, then you can get them to turn off the ignition while you are under the truck & then you will be able to zero in on the area where the noise is coming from. From there you should be able to find the problem. Good luck & let us know what you find. Hope this helps. ALso, if you are experiencing a loss of power (you didn't say)it WILL be an exhaust issue.
2011 mustang/66 mustang//not bad ass, but bad enough.
Last edited by 1KOOL1; 01-19-2011 at 07:55 PM.