romanimal

well after replacing the wheel bearings and hubs and cutting the rotors, we were fine for 2500 miles. Then the pulsation came back, albeit not as bad. Calipers and tie rod ends and all the suspension checks out fine. The saga continues...

Before cleaning

Thank you. I have the car at Vertucci now and they are figuring it out. I'm Confused about a few things though. 1) If good rotors were installed on bad hubs, wouldn't they have pulsated immediately rather than working great for two months and slowly deteriorating? 2) Will the dial indicator used on the rotors give a true indication even if the hub is out of round or would the underling hub warping flow through to the rotor measurement using the spinning tool? Perhaps checking the thickness at various points with a gauge be more accurate in this case? 3) Aren't there some tension adjustments on the hub that can be adjusted? I'm just worried about spending another 4-5K and having the same thing happen again in a few months. Dan Jacobs is the recommended Porsche specialist in CT and they did not mention hubs as a problem. I don't trust the dealer either as they once told me I needed a new ignition switch because I put the wrong key in the car and it got stuck. I was able to remove my self with a paper clip. Below pictures of the hub in question after they were cleaned by Rabe

In September of 2017 I purchased a 2006 Cayenne Turbo S from Vertucci in Wallingford, CT Beautiful shape, only problem was a brake vibration. Dealer said that this was probably because the car had been sitting, rotors had rust on them and it would go away in time. By March 2018, the vibrations from the front right side had increased to the point where car was undriveable. Contacted Vertucci and they advised me to purchase rotors and they would instal free of charge, Purchased new rotors/pads (front & Back $2300) and had them shipped from Gaudin Porsche. Vertucci installed free of Charge. Car was fine for two months. In July 2018 Vibrations came back. Gaudin sent me new rotors, no charge. Vertucci installed, No charge. Car was fine for a month and then vibrations occured again. Contacted Gaudin, they said I needed to bring to a Porsche dealer to inspect the rotors and suspension to see what was causing rotors to Warp. I brought the car to Dan Jacobs, the local Porsche specialist first to get their opinion in to ensure that it was in fact a rotor problem and to make sure that nothing else would be found to negate my warrantee. They found that I needed an upper right control arm and front wheel bearings. Cost of the inspection was $170 When I called Vertucci to get this work done they were busy, so I brought it to Rabe Motorsports to replace the Wheel Bearings and Contol Arm at a cost of $1880. They also checked the Hubs, which seemed OK to him other than some type of black residue they found on the right Hub, which they cleaned for me. I bring the car to the local Porsche Dealer for an inspection at a cost of $170. Mind you I have now spent $4,520 on brakes which still have a pulsation to the point the car is undriveable. I get the report from Porsche, and it says that my Front Hubs are out of round as well as my rotors. Concluded rotors wont be covered because they are out of round because of bad hubs. Repair estimate $5,000. Anyone have any advice??? Car is undriveable and unsellable as it stands. Anyone ever run into something like this?