Question about Cars & Trucks
Doesnt happen when revs are on . In gear or outa gear. Sounds dry but plenty oil
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Posted on Jan 02, 2017
SOURCE: Pontiac G6 gas pedal rattle
Is this almost like a metallic buzzing sound?
Find the catalytic converter under the car it should have a shield on it. Use a broomstick with the car running and hold the shield still and have someone give it a little gas. Just move from shield to shield until you find the offending shield.
Don't touch these with your hand as they can get hot fast.
Most parts houses sell a very large hose clamp to go around these shield for about $10, they will know exactly what you are looking for.
Posted on May 30, 2009
Check under the hood and inspect the valve cover gasket. If it's bad it would explain why you don't see any leaks on the ground because it's probably burning off on the manifold. This ticking you're hearing is a lack of lubrication to the rocker arms. Apart from the valve cover gasket, you should get under the car and inspect the oil pan and oil filter for seepage. Best of luck on your problem.
Posted on Jun 10, 2009
When catalytic converters go bad, the porcelain matrix inside comes loose and is noisy.
But you can just unbolt it, break up the loose chunks, pour out the pieces, and it will run better than ever.
If you don't pass the next emissions test, then replace it.
But it could just be the heat shield rattling instead.
Take the shield off first, to see if it goes away.
Posted on Jan 03, 2010
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