Hello!


I just bought a 2003 996 Turbo yesterday evening - I'm stoked. During all of the test drives she drove excellent, but when taking a tight 180 degree sweeping freeway on ramp at speed (accelerating) I could feel a slight grumble/shudder under my butt and in the steering wheel. It also made this same grumble/shudder when making a U-turn while getting hard onto the gas at the end of the turn.


Question - can you feel the AWD/PSM system working? Would it cause this grumble/shudder while sharp turning and accelerating? Other ideas?


Straight line driving no issues. As a noob to Porsche AWD I might just be a little touchy to all the new noises and feelings of the car.


Car has 59,000 miles and otherwise checked out with the mechanic when I had the PPI done.


Thanks in advance for the help!

 

I'm fairly new to Pcars as well, but what you're describing doesn't sound normal. I don't ever feel or hear any grumbling/shuddering. AWD on these cars is seamless and PSM you'd notice the light on the dash if it kicked in.

 

Check to see if your tires are rubbing. There are lots of possibilities...

 

Wheel bearing? I don't think AWD would come on in any of the instances your talking about. Power steering pump my grumble at full lock.

 

Could be something as simple as a bad CV joint or something worse like a differential problem. I would definitely have it checked out.

 

Agree with IITURBO have cv joints looked at and diff fluid etc.

 

UPDATE:

Worn transmission mount was the problem. Thanks to this forum I found the answers I needed.