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Showing results for tags 'transfer case'.
Hoping to identify a root cause of multiple transfer case failures. 2012 Cayenne S purchased CPO with 43K. Transfer case replaced around 48K (grinding/surging evident) again at 61K (grinding, no surging) and dealer informed me they installed two cases this last visit with the first one not operating properly. Returning to dealer today, 62K, grinding/clunking particularly evident on left hand turns but not exclusive and while frequent it is not a constant occurrence. Hard to imagine randomly getting multiple "bad" transfer cases and suspect some other gremlin is the root cause. Has anyone experienced a similar issue or have a suggested direction (differential?) I can pass on to the Porsche techs at Annapolis Porsche? Rolling out of warranty in two weeks so a bit concerning. Thank you, Rich
hi guys, I have a 2012 Cayenne S which has done about 56k miles. When I turn the steering and press the accelerator, the rear left tyre judders. My brother observed that the wheel looks like it was 'locked'. My mechanic disconnected the transfer case motor, and after he did that, everything was back to normal (there was a 4x4 error as the transfer case motor was disconnected). According to him, since the transfer case motor is disconnected, the transfer case was not being used and he came to the conclusion that there is a problem with the transfer case. Another gearbox specialist I consulted with said that the problem is due to the transfer case motor. According to him, even though the motor is disconnected, the transfer case is still being used. He also gave me some other reasons which I forgot. I am not sure who to believe. BTW I have also done the following:- 1)Change the transfer case fluid 2)Change the rear axle fluid 3)Refurbish the rear left driveshaft The problem became worse after doing the last 2! both the transfer case & axle fluid were dirty but nothing serious.
Trying to track down an issue I'm having on my 2013 TT. It has a stumble when accelerating in the 1800-2500 rpm range in basically any gear. If I punch it, it will sometimes act like a misfire. I've changed plugs and coils and looked for vacuum leaks in the front and rear of the engine but didn't find anything. I hooked up an Edge CTS to it and watched various parameters over the past few days but don't see anything obvious. Spark timing looks good and consistent, fuel pressure looks OK, Long term and short term fuel trims look OK (see below), and O2 sensors don't appear to be malfunctioning. Boost may be an issue as the CTS doesn't always read equal to the dash gauge (might be lag in time it samples the data). I checked hoses and don't see anything obvious and made sure clamps were tight. I haven't checked under the intake manifold for anything yet. So for data I never see the short or long terms get above +/-10%. Short terms go up when accelerating but then come back down to close to zero at cruising speeds or driving at a steady pace in the neighborhood. I've also sat at idle and revved to about 2500rpm with no load to watch them and once I hit a steady state they are almost always at or near 0%. So back to the boost readings, I will see about 0.1-0.3 on the dash gauge and watching the CTS readout it will only go to 3 or 4 psi. Sometimes when showing 0.1 or 0.2 psi on the dash, it shows 0 or 1psi on the CTS. So just to be sure I think I'll check the wastegate diaphragms for leaks and then the diverter valves next. On full throttle I see about 8 or 9 psi, peak at 10 once or twice so I'm not sure how much it's supposed to be making. But I can't keep it punched for long due to where I live. Any suggestions?
Can anyone help me identify a fluid leak? While changing oil on my '04 Cayenne S, I noticed a small leak coming from the drain (weep) hole of what I would normally call the bell housing which I assume is part of the transmission housing. There are 3 small holes in a row which appear to be drain holes. The fluid has the consistency of 90 weight oil. It is amber in color. It's not motor oil or transmission fluid (which I think is colored Red). Thanks!
Hi, We have a heavy snow here in Poland so I wanted to use reduction to get home safely. Unfortunately a massage showed up on the screen which says that "4 wheel drive fault......" Car is in the garage now and I cannot get it back to normal 4 wheel drive - reduction is still on. No chance to get it to second type of reduction. Massage stays on I had 2 trials where I managed to get it back to normal 4 wheel drive as I thought that maybe snow did some damage or water etc. nothing. I am looking at many topics here on the forum and it looks like it may be the servomotor? The transfer case was not used very often. Battery was changed 7 months ago. Any ideas where to start? No chance to connect it to durametric as I am over 100 km from Warsaw Porsche Stealership. Need Your help Guys as I need this car to run smooth again. Oil in the transmission was changed 3 weeks ago.