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Posts posted by ma77hewsu11ivan

  1. No worries brother. Glad to help.


    Things I've done myself - happy to share my experience:

    - HPFP 

    - Vacuum pump

    - solenoid valve

    - starter 

    - coils

    - Plugs

    - ox sensors

    - oil separator bank 2

    - engine mounts 

    - trans mount

    - both LP fuel pumps, filter, etc

    - micro switch rear latch

    - HVAC blower motor 

    - rotors/brakes/parking brake

    - steering fluid change

    - brake flush

    - transmission oil 

    - diff oil : front/rear

    - transfer case oil

    - all new plastic stone guards/ air dams underneath


    Loads of little odds and ends. With the exception of a complete loss of acceleration resulting in a new HPFP (replaced LPFPs on both sides, filter, etc proactively), the starter and oil separator, everything else has been scheduled maintenance items and/or preventative measures.


    My 2009 Porsche Cayenne S is hands down the best vehicle I've ever owned. As she nears the 200k mile marker, I'm at 198k, my next projects include:


    - alternator

    - water pump / thermostat / pulleys / belt

    - finally resolving lingering 0421/31 codes (likely new cats as I've tried almost every other workaround)

    - rebuild each caliper




  2. There is an ~18in. harness at each wheel that runs up the suspension and clips into another harness behind the wheel wells  along the fender. It feeds the speed sensor and the brake pad indicator - mine happened to be the left rear - part number might be different as I have an 09S.  expensive bugger. Check the free PET PDF via Porsche website for PN or just call a dealer. Most of the wear on mine were where the lower boot slides into the mounting bracket; likely from repeated removal over the years to change pad indicator wires when installing new pads... 

  3. I can't speak to air suspension errors as I have coil overs, but the rest of those warnings are all related to your ABS/speed sensors. Remove and clean them all. Had the same issues. My issues were compounded by a corroded brake pad indicator harness wire (it also feeds the abs/speed indicator). So check all those while you're down there. If cleaning sensors doesn't work, replace. They're cheap and it's an easy fix. Harness is a $150+ flipping wire.

  4. Invest in a durametric scan tool. Can easily be reset through that.  Useful  for a number of things if you're the diy type. Or find an Indy with a piwis or the dealership. But an hour at the dealer pretty much equivalent to the cost of a durametric... Good luck. Let us know how it pans out. -Matt


    Side note: if the trans does in fact need an  update , a  durametric cannot apply firmware... 

  5. There is a weird front end clicking or thumping sound that usually only occurs after driving slow from a stop.   It only occurs when the accelerator is pressed and disappears when you let off the accelerator.  By accident I found that completely pressing down on the brake pedal will prevent it from happening.  I thought it was brakes but I just replaced pads/rotors & it’s still happening.
    Any thoughts?  

    Check for loose brake hardware, brake shield rubbing, debris around or in the caliper...

    Sent from my iPhone using Tapatalk

  6. So, the foot pedal assembly of my parking brake pops/snaps loudly every time I use it. The brake holds. But clearly something is not right. The popping sound emanates from the foot pedal assembly. Tried everything I can think of to remedy the issue: new parking brake shoes and hardware, calibrating the tension screw in the rear rotors... Nada. Anyone ever deal with this before or have any ideas? Thanks, Matt



    2009 Cayenne S



  7. No pics, but it's pretty easy to spot. A little tricky to reach. From underneath the vehicle's driver's side, with the trans shield removed, you can see where the column attaches to the steering gear by a single E14 torx (M10x35). By turning the wheel slightly to the passenger side I was able to reach the bolt with an extended socket wrench. If you pull up the parts diagram from the free PET pdf you'll see what I'm talking about. PMing you now.

    2009 Cayenne S

    • Upvote 1

  8. You have all the pieces. Time to solve the puzzle. I'd start with a pressure test and flow rate to make sure your LP pumps are getting enough fuel where it needs to go. If the pumps are original, you'll want to replace both along with fuel pressure regulator and filter regardless as the originals WILL fail, but that's a bit pricey... Could be just a dirty throttle body, a failing FPR, a semi-clogged fuel filter, injectors, coils, plugs, crappy gas, weak battery, wire weirdness...

    Sent from my iPhone using Tapatalk

  9. Yes. It's my understanding you should also perform a flow rate test on each pump. Either way, if they're original, they're likely on their last leg. Also, the fuel filter is likely nearing EOL along with the FPR (if all are original). Replacing all of the above sans the HPFP allowed reduced driveability (yes, not smart) during the week until my HPFP arrived... Oil change immediately after replacing HPFP, reset throttle adaptation, etc...


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