Funny noise from back of 996 TT
Discussion
I wonder if any one can help.
I have a 2003 996 Turbo tip. it has x73 suspension - so it's lower than stock.
I have noticed that when the car is really warmed up I sometime hear a scrubbing noise from the right rear - it only happens at light throttle openings or coasting at 20-35mph. if i brake firmly or accelerate it stops. It sounds like a tyre rubbing (but it isn't - because i have really checked under the car).
Oh- and the problem only started when i reduced my usage from ever day to less than once per week...
Any idea?
I have a 2003 996 Turbo tip. it has x73 suspension - so it's lower than stock.
I have noticed that when the car is really warmed up I sometime hear a scrubbing noise from the right rear - it only happens at light throttle openings or coasting at 20-35mph. if i brake firmly or accelerate it stops. It sounds like a tyre rubbing (but it isn't - because i have really checked under the car).
Oh- and the problem only started when i reduced my usage from ever day to less than once per week...
Any idea?
I had the Rear Track Control Arms and the Rear Forked Arms changed at the same time, and I can't remember which ones were causing the noise.
Might be worth getting your car on a ramp and get it checked for any free play in the suspension/control arms (these cars are known for their wear in this area).
Might be worth getting your car on a ramp and get it checked for any free play in the suspension/control arms (these cars are known for their wear in this area).
) and see if it stops.Alexe911 said:
I wonder if any one can help.
I have a 2003 996 Turbo tip. it has x73 suspension - so it's lower than stock.
I have noticed that when the car is really warmed up I sometime hear a scrubbing noise from the right rear - it only happens at light throttle openings or coasting at 20-35mph. if i brake firmly or accelerate it stops. It sounds like a tyre rubbing (but it isn't - because i have really checked under the car).
Oh- and the problem only started when i reduced my usage from ever day to less than once per week...
Any idea?
Couple of things... My 03 Turbo started emitting a 'dry bearing' sound from the rear of the car which proved to be a bad serpentine belt idler roller bearing. The one up high next to the power steering pump.I have a 2003 996 Turbo tip. it has x73 suspension - so it's lower than stock.
I have noticed that when the car is really warmed up I sometime hear a scrubbing noise from the right rear - it only happens at light throttle openings or coasting at 20-35mph. if i brake firmly or accelerate it stops. It sounds like a tyre rubbing (but it isn't - because i have really checked under the car).
Oh- and the problem only started when i reduced my usage from ever day to less than once per week...
Any idea?
Another cause if the noise is coming from the that area is a water pump. Check the serpentine belt edges. If you find one (or both) are 'sharp'... the belt is rubbing on a pulley side and this is a sign the belt is not tracking properly and this can arise if for instance (my experience with my Boxster) the water pump develops some play in its bearings.
If the noise is coming from the wheel tire area...it can be 'dirty' brakes. Briefly brake dust can build up on everything but on the brake piston dust covers (boots) this can interfere with the natural tendency of the brake piston seals to slightly retract the pistons and thus the pads. As a result the pads remain in slight (dragging actually) contact with the rotors and a bit of odd noise is the result. The noise goes away when the brakes are applied of course.
The fix? Wash the brakes. I use a DIY car wash and aim the wand nozzle tip close -- but not too close the water pressure can damage/tear the boots -- to the pads/piston areas. Let the water/detergent not the water force do the work.
Rinse thoroughly and afterwards (important!) drive the car enough and use the brakes enough to completely dry the brake hardware.
Oh, be sure all the holes in every rotor is free of dust build up. If necessary you can jam the wand tip right up against the rotor to 'blast' the dust out of the holes. You will have to move the car forward or backward a bit to get at the holes hidden by the pads.
Be sure too the power steering fluid and brake fluid levels are ok. Not too low, but not too high either. Too high can be a sign of a problem in the power steering/brake hydraulic booster system.
Sincerely,
Rockster.
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