Whooshing sound while shifting?
Thread Starter
Pro
Joined: Apr 2004
Posts: 559
Likes: 43
From: Bonita Springs FL
Whooshing sound while shifting?
Hi all,
I've been trying to track down what I thought was an exhaust leak after installing LG Street Series headers, high flow cats, X pipe and Borla Stinger exhaust.
Everything sounds good for the first 5 minutes and then I'm starting to hear intermittent ticking and fluttering sounds when warmed up.
I've tightend the crap out of the clamps and laid under the car while running, put my hands up to the joints and feel no exhaust escaping.
I've made sure all the bolts to the head are tight.
One thing I've noticed is that along with the various ticking and fluttering sounds is a whooshing or shhhh sound when shifting. All this happens after about 5 minutes of driving.
What's stumping me is the ticking seems intermittent. It comes and it goes. Could this be a lifter and not an exhaust leak? Could the whooshing sound possibly be a bad cat rattling?
Otherwise the car runs like a raped ape.
Thanks for your help!
I've been trying to track down what I thought was an exhaust leak after installing LG Street Series headers, high flow cats, X pipe and Borla Stinger exhaust.
Everything sounds good for the first 5 minutes and then I'm starting to hear intermittent ticking and fluttering sounds when warmed up.
I've tightend the crap out of the clamps and laid under the car while running, put my hands up to the joints and feel no exhaust escaping.
I've made sure all the bolts to the head are tight.
One thing I've noticed is that along with the various ticking and fluttering sounds is a whooshing or shhhh sound when shifting. All this happens after about 5 minutes of driving.
What's stumping me is the ticking seems intermittent. It comes and it goes. Could this be a lifter and not an exhaust leak? Could the whooshing sound possibly be a bad cat rattling?
Otherwise the car runs like a raped ape.
Thanks for your help!
Instructor
Joined: Jul 2006
Posts: 233
Likes: 0
From: Redondo Beach CA
I've yet to put headers on a car and not experience the occasional new noise. Yes you may have a leak somewhere but depending on the header design you are also likely to hear more "little things" no matter how well buttoned up it is. Now my new Borla's are fairly quiet however I do get a "whoosh" as well on upshifts. This is the price one often pays for the power increase of headers.
Le Mans Master
Joined: Aug 2002
Posts: 8,472
Likes: 38
From: Houston TX
St. Jude Donor '11
Same here. Can't really tell if its an exhaust leak or valvetrain noise resonating through the header. And it's not constant. You want to hear some real noise try driving around without the shifter close-out in place. The torque tube makes all kinds of "normal" seemingly bad noises. 
Thread Starter
Pro
Joined: Apr 2004
Posts: 559
Likes: 43
From: Bonita Springs FL
