Clicking Noise Heard Upon Throttle Stab

[mike100]

Sounds like a hairline exhaust leak. You hear it better as soon as the engine gets a load on it. I had a cracked Corsa resonator do that. tickety-ticked when you came off of coast and started going again. You could really hear it at low speeds when next to a wall or another vehicle.

[KJL]

Originally Posted by Marc Haibeck

Does the sound have any resemblance to the so called "chain rattle" clicking sound that is sometimes heard at start-up? If so it could be a loose secondary chain tensioner. It should be easy to isolate a tensioner sound to the left or right cylinder bank.

Thanks for the input Marc, nice to have supporting members like you.

Checkout link below. Sorry for the video potion.

https://www.youtube.com/watch?v=Joqe...ature=youtu.be

[KJL]

Mike-

The recording was taken at the exhaust manifold area. I hope you are right. Probably should have turned the phone around but the sound is quite clear.

[mike100]

Oh!- that's and exhaust leak for sure. Not sure if gasket or actual crack in pipe somewhere, but the absolute easiest way to find out in about 30 seconds is to get a decently long vacuum tube or small rubber hose as a probe. stick one end in your ear and use the other end to pass in close proximity to suspected leak areas and it will be obvious as hell and loud like a stethoscope. just blowing across the end of the tube makes a good test to show how well airflow is picked up by this test.

[KJL]

The headers are new and in perfect condition, my guess is a gasket leak. Most of the bolts were finger tight when I got the car. Hard as hell to get a wrench on them. As soon as I get the alternator installed I will check with a hose. May need to put car on ramp to get to the bottom edge of exhaust flange.

[KJL]

Got a wrench on a few of the bolts and they were loose. Noise is greatly reduced. I need to get under the car and snug up the lower bolts. Hopefully that was all it was.