OK so last year I had this prob and the end result was a new Engine.

When driving about 40-45mph I hear what sounds like air leaking and something boiling! This happens as I hold my foot light on the gas peddle at these speeds. But the more I step on it the sounds go away. Sounds like engine #3 is on the way but well see.
So this weekend I'm off to my Mazda Dealar where I got my car to have her looked at. This crap just makes me
2004 AT.

-Gil

 

Have you done anything different on this one? Pre-mix oil,Syn-oil, Prem-gas, drove harder...etc..etc

 

Not one thing dirrernet. I take it easy on my baby and about 1 or 2 times a week I kick her in the *** to clean out all that carb build up Thats about it.
I'm going to the dealer on Monday. I'll let you guys know whats up.

 

MArbles in a can sound? Ports opening up.

What rpm is this happening at?

 

When I driving from 40mph to 45mph anything over that and it gos away.

I was at my Deal on Mon. They told me its normal and they reflashed my car. I guess so. I asked about finding oil on my air filter, this being my 2nd Engine and all I was concerned. They said its not from that your car Engine is just fine.

But I have this bad feeling. Maybe its just me.