Buzzing at higher revs

[houndman]

the motor on my 07' 2.5i 5M starts to buzz around 4K rpms and the
power drops of a lot. Only paid attention in 1st gear, since it is
more noticeable there, and more of a problem. Sounds like the valves
might be floating. Is this normal for the motor ? I was thinking of
trying a cold air intake, to try to nudge the power up a bit higher,
but not sure that would help now.

VF

 

[Carl 1 Lucky Texan]

the motor on my 07' 2.5i 5M starts to buzz around 4K rpms and the
power drops of a lot. Only paid attention in 1st gear, since it is
more noticeable there, and more of a problem. Sounds like the valves
might be floating. Is this normal for the motor ? I was thinking of
trying a cold air intake, to try to nudge the power up a bit higher,
but not sure that would help now.

VF

Get it to the dealer, maybe drive a different one while you're there to
compare. I doubt the valves are floating but I would expect 4K to be
near (or just the other side of) the peak torque point. Loss of power
there and/or a strange noise seems wrong.

Have the dealer check it out.

Carl

 

[houndman]

Get it to the dealer, maybe drive a different one while you're there to
compare. I doubt the valves are floating but I would expect 4K to be
near (or just the other side of) the peak torque point. Loss of power
there and/or a strange noise seems wrong.

Have the dealer check it out.

Carl

drove the car and paid closer attention. Seems like pushing it harder
in first, the problem isn't as noticeable, and maybe just feeling the
torque dropping off, and engine noises at higher revs.

VF