Help with 2008 Cayenne Turbo engine noise plus more!

[Ryan Hough]

Hi Everyone! Long time Lurker and final a first time Porsche owner! I just got a new to me 2008 CCT with 56K miles on it.  I really like it but I am already having several issues with it. The good news is, the dealership I got it from is including a 60 day 3K mile 100% warranty on all parts and repairs.

One of the several issues I am having is it sounds like the power steering pump is going and it makes a loud whining noise and they are saying it's normal. The ps fluid level is normal, but it is a very distinct noise that I can hear from a distance away. I would really appreciate if you could help me decipher this noise. Here is a video of the noise.

 

 

Other problems are: Needs a new driveshaft. Needs the thermostat replaced. It keeps throwing a 1117 Load Signal Generator Terminal DF. Battery is reading 13.4 max with no load running and drops to 13.0 with lights etc. on. They insist it's good.  Brakes won't stop squealing after replacing pads and they had to replace they front left Accelerometer because of the air lift system error. WHEW! I still thinks it's going to be an awesome vehicle.

I go back this week to drop it off for 2 days for all those repairs but I want to make sure I get everything that is obvious. Also since they will have the intake manifold off, I was thinking I should replace the Plastic T connectors for the coolant lines. Is there anything else I should deal with while they have it all apart? Ignition coil packs?

 

adding this for new readers:

 

Thanks for any help guys.
Sincerely,
Ryan
 

Edited June 14, 2017 by Ryan Hough
made viedo viewable here

[GSpence2]

My CTT sounded just like this right before an expensive rebuild. https://www.renntech.org/forums/topic/50695-on-the-eve-before-christmas-the-gremlins-gave-to-me/#comment-283614

 

[ekstroemtj]

Back to the original poster. 

Congrats to you for your Porsche. 

Your car has actually quite few miles on the display for a 2008 model.  Shure thats the right the right mileage?

 

i know how fast somebody can get exited by a porsche. But the time of ownership can be sometimes really painfull. 

Dont want to spoil your mood, dont get me wrong please. 

the warranty you have isnt that long . The problems you describe are already some thousand to fix. In your case the dealer will pay. Thanks god!

 

but strange noises from the engine can end in disaster bills. Be careful. The battery  issue which you describe could be a alternator problem. Get it checked. 

 

But here are a lot of smart people who have more to say about your beast. 

Good luck

Edited June 14, 2017 by ekstroemtj
Mistype

[lewisweller]

15 hours ago, Ryan Hough said:

Hi Everyone! Long time Lurker and final a first time Porsche owner! I just got a new to me 2008 CCT with 56K miles on it.  I really like it but I am already having several issues with it. The good news is, the dealership I got it from is including a 60 day 3K mile 100% warranty on all parts and repairs.

One of the several issues I am having is it sounds like the power steering pump is going and it makes a loud whining noise and they are saying it's normal. The ps fluid level is normal, but it is a very distinct noise that I can hear from a distance away. I would really appreciate if you could help me decipher this noise. Here is a video of the noise.

https://www.youtube.com/watch?v=zQXRPl6TJbk&feature=em-upload_owner#action=share

 

Other problems are: Needs a new driveshaft. Needs the thermostat replaced. It keeps throwing a 1117 Load Signal Generator Terminal DF. Battery is reading 13.4 max with no load running and drops to 13.0 with lights etc. on. They insist it's good.  Brakes won't stop squealing after replacing pads and they had to replace they front left Accelerometer because of the air lift system error. WHEW! I still thinks it's going to be an awesome vehicle.

I go back this week to drop it off for 2 days for all those repairs but I want to make sure I get everything that is obvious. Also since they will have the intake manifold off, I was thinking I should replace the Plastic T connectors for the coolant lines. Is there anything else I should deal with while they have it all apart? Ignition coil packs?

 

Thanks for any help guys.
Sincerely,
Ryan
 

Hard to hear that humming. If you turn the steering it should change the humming pitch even just a little, this will verify the power steering pump or not  Just note the water pump and alternator can hum and whine a bit, also the cayenne has a habit of being a bit whiney. I think something to do resonance of pulleys belts etc. 

13 volts is a sure sign that something is going to go wrong soon with alternator or battery is weak. What's the voltage with engine off? Less than 12.6v is on the way to undercharged. But above 12.4 is acceptable it seems for most of in aged cayenne. It may be the battery is weak as a result of a failing alternator! 

 

Pads need Cooper grease or they squeak and squeal like a pig (no pun intended). The "ceramic or high performance" type pads are super noisey I'm told. I still have squeaks using oem vw touareg pads which are in fact made by Brembo, I need to clean and grease them every 10k km. Same for rear brakes. 

 

Don't think getting to the coolant Tees is that easy even with manifold off. I would advise you ask them to scrutinise every and all vac, pcv breather pipes they may encounter because it's a real pain to go back in there again.

Coil packs aren't exactly cheap for 8nos, but if you got cash to splash and no record of service replacement previously then go for coils and plugs, at least you won't be one of the many cayenne misfire sufferers. 

 

Moreover if that noise turns out to be something major like bottom end, scored bores or timing chain/top end failure then your in for a big kick in the crutch. Tread carefully my friend. ......you do have the opportunity to act now with the sale warranty. 

Edited June 14, 2017 by lewisweller

[Ddavidoff]

Does it have pdcc? If it does they wine a little and sound like a bad pump.

Mine has some of the same engine sounds, a little piston slap I think. There is a known issue for scoring that can cause this. You would need a scope. I would stay on top of oil changes and make sure you use decent oil.

As suggested above I did all the maintenance items on mine. Plugs, coil packs, all fluids, belt, brake flush, brakes all around and I bought a drive shaft. Just waiting for the one in it to give up. I'm getting some vibration so that won't be much longer.

I also did the thermostat which was fairly easy, with the exception of getting the sleeve out. Do a search for options.

There are some vacuum leaks that can be addressed, the T at the back of the intake manifold is not easy to get at but can be done. I used a brass one with some clamps. The brake booster vacuum line also cracks near the firewall. I fixed mine me with sealant and tape. I also ordered a new one, but have not installed it yet.


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[Ddavidoff]

I should also mention I had battery issues as well. Tailgate not closing, various fault codes including hard steering, etc. replaced the battery, cleaned the terminals and all problems went away. I went with the new glass pack technology battery.

Also had the water in the cabin issue, corroded wires in the driver footwell. Cleaned the drains; again search for which ones. Resoldered the wires and dried everything out with a hair dryer.

Do a few of these things now and you will save yourself some headaches.


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[Ryan Hough]

Thanks for all the info guys! 

Lewis, In the video, I am moving the steering wheel back and forth and you should be able to hear the noise change pitch as I do it.

 

I decided to take it directly to the Porsche dealership and have them do a once over on it and take that report back to them. I want everything sorted out before I start making payments on it..

 

Thanks again!

Ryan

[Loren]

Please let us know what the dealer's tech finds. 

[Ddavidoff]

Please let us know what the dealer's tech finds. 

+1


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[lewisweller]

24 minutes ago, Ryan Hough said:

Thanks for all the info guys! 

Lewis, In the video, I am moving the steering wheel back and forth and you should be able to hear the noise change pitch as I do it.

 

I decided to take it directly to the Porsche dealership and have them do a once over on it and take that report back to them. I want everything sorted out before I start making payments on it..

 

Thanks again!

Ryan

Smart. Learn from our wallets. Empty wallets lol

[ekstroemtj]

 

[Ryan Hough]

I certainly will! I am waiting to hear back from the Service manager to schedule an appt.

 

In the mean time I checked the Voltage of the Battery via the iCarSoft POR II and when it's Cranked no load it reads 13.3-13.5v With all items on, 13.0. with the engine off and sitting for a bit it's hovering right at 12. 

 

I'm not sure if anyone is familiar with the iCarSoft but when I am doing a real time diagnostics with it, and I'm in the settings for the"Ignition counter misfire detection", I am getting a steady stream of a fast moving counter to around 5000 and it resets to zero. I am not getting any reports of a misfire on any cylinders so I am not sure what this read is. Does anyone have any experience with this?

 

Here is a link to that video.

 

 

[lewisweller]

8 hours ago, Ryan Hough said:

I certainly will! I am waiting to hear back from the Service manager to schedule an appt.

 

In the mean time I checked the Voltage of the Battery via the iCarSoft POR II and when it's Cranked no load it reads 13.3-13.5v With all items on, 13.0. with the engine off and sitting for a bit it's hovering right at 12. 

 

I'm not sure if anyone is familiar with the iCarSoft but when I am doing a real time diagnostics with it, and I'm in the settings for the"Ignition counter misfire detection", I am getting a steady stream of a fast moving counter to around 5000 and it resets to zero. I am not getting any reports of a misfire on any cylinders so I am not sure what this read is. Does anyone have any experience with this?

 

Here is a link to that video.

 

 

That's ignition cycles not misfires. Error in the description on software. 

If it was misfires the car wouldn't be able to run like that. 

[Ryan Hough]

Gotcha! I was thinking it was along the lines of that but just wanted to get a sanity check! I appreciate everyone's time and help so far! 

 

Also, I was looking at the fine print on the warranty and says it voids the warranty if me or anyone else works on the car or does anything to it without their approval etc. I hope having the Porsche dealership Inspect it does not break that. I don't see how it could possibly but I could see them trying to pull that crap if they actually found something big etc. Who knows.

 

ryan

[Ryan Hough]

Just wanted to give an update after taking it to the Porsche dealership!

 

So the Engine noise I was worried about that I thought sounded like a Power Steering pump whirring etc. turned out to be the PDCC. They said it's perfectly normal and can actually be much louder than mine! I find it to be rather annoying but if it's "normal", so be it. Everything else they found was the same things the original place found and confirmed. Bad alternator/battery, starter, thermostat, drive shaft, front rotors and pads. I hope to get all this resolved soon and can start to really enjoy my new to me Cayenne! Thanks for all the help everyone! I will post if anything else happens.

 

Ryan

[Ddavidoff]

Yep, as mentioned mine is loud as well. Alternator,starter seems a bit out of the ordinary, but I have heard about a few having problems. My theory is that it's cayennes that needed a battery for a long time which is hard on the starter and alternator. Drive shaft, rotor and pads are all wear and tear parts on the Cayenne. Sounds like nothing "major" was found. What will happen with the warranty you mentioned. Will you claim it there?


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[Ryan Hough]

I let the Dealer I bought it from know all of the Porsche dealer's findings and they agreed to replace all the affected parts! So they have all the items in and I just have to drop it off for a few days while they replace the above items! I will post a follow up once everything has been taken care of.

 

Thanks,

Ryan

[lewisweller]

13 hours ago, Ryan Hough said:

I let the Dealer I bought it from know all of the Porsche dealer's findings and they agreed to replace all the affected parts! So they have all the items in and I just have to drop it off for a few days while they replace the above items! I will post a follow up once everything has been taken care of.

 

Thanks,

Ryan

Ask for the old parts. And just happen to past by around day two and have a look how they are getting on. Take pictures for future reference, I still check back on mine for help with other diy repairs and locating items. 

[Ryan Hough]

I was thinking that too...  What if they have a core charge on the Alt, starter, battery and Driveshaft? I also live an hour away from the place so dropping by is not feasible. I will at least ask to see the old parts..

 

Also, to quieten the PDCC pump up front, Could I just wrap it in Dynomat or similar to take away some of the frequency? It shouldn't cause heat build up and issues down the road would it?