Exhaust manifold gasket leak

[Coz]

Pretty sure I have a leaky gasket. I hear a snapping sound which varies with rpm. Is there any way to check for sure? How do you know which manifold?

 

[scoflaw]

If 1 is leaking the others are not far behind.

 

[Espos4]

Pretty sure I have a leaky gasket. I hear a snapping sound which varies with rpm. Is there any way to check for sure? How do you know which manifold?

Are these original 2008 manifolds and gaskets we are talking about? Or have they ever been replaced?

 

[HawkX66]

Pretty sure I have a leaky gasket. I hear a snapping sound which varies with rpm. Is there any way to check for sure? How do you know which manifold?

Are you sure it's not a plug wire?

 

[Coz]

They are original. Freshwater only. I replaced plug wires last year.

 

[HawkX66]

They are original. Freshwater only. I replaced plug wires last year.

Snapping usually is the sound of a plug wire. If you're that confident, move your hand from boot to boot and you'll know pretty quick.

 

[techmitch]

Snapping usually is the sound of a plug wire. If you're that confident, move your hand from boot to boot and you'll know pretty quick.

And sleep better tonight.

 

[Coz]

Or I could use my scanner and shut off 1 cylinder at a time. I like that better than the grab test!

 

[HawkX66]

Or I could use my scanner and shut off 1 cylinder at a time. I like that better than the grab test!

Sissy.

 

[Coz]

Actually book says misfire test disables the fuel injector not the spark……so

 

[Coz]

Any reason I couldn’t disconnect plug wires at the dist cap one at a time, start engine. Maybe put a rubber plug in the cap.

 

[scoflaw]

If the noise is coming from spark you would see it at night just by looking, if the snapping is coming from exhaust you'll see carbon track. Use a mirror to look under the manifolds