Vibration at low rpm

[soldave]

Had a few parts installed recently (turbo, intercooler, intercooler piping) and a full belt change (timing, power steering, alternator, timing belt tensioner) change. Note that thet balancer belt was not changed due to it having been done a few short months ago. However, now I am experiencing a slight vibration in the car. The vibration starts at around 1500rpm and only occurs until about 1700rpm and then goes. Also, after 5minutes or so of driving the vibration goes away.

I've looked through previous threads and the common answer for vibration after a timing belt replacement is that the balance shafts are out of phase. But the vibration is very slight, only happens at a very limited low rpm level and goes away after 5-10 mins. Any ideas of what it could be?

 

[Backinajiffy12]

I think its just your balance shaft being eliminated they will cause a slight engine vib but the fact that it only does it for 5 or 10 min is odd. Is your car a manual or A/T

 

[soldave]

Balance shaft hasn't been eliminated from my car. And the car is a manual.

 

[DSMJake]

Mine does this to but only when im braking.

 

[Colt4G63 also]

I would normally say that your rear balance shaft is out of sync. Not the one with it's own belt, but the one that's driven by the oil pump. However if the vibration goes away... Are you sure it isn't a misfire?

Ps. DMJake, yours is easy, just replace your rotors and pads.