Jump to content
×
×

Welcome to RennTech.org Community, Guest

There are many great features available to you once you register at RennTech.org
You are free to view posts here, but you must log in to reply to existing posts, or to start your own new topic. Like most online communities, there are costs involved to maintain a site like this - so we encourage our members to donate. All donations go to the costs operating and maintaining this site. We prefer that guests take part in our community and we offer a lot in return to those willing to join our corner of the Porsche world. This site is 99 percent member supported (less than 1 percent comes from advertising) - so please consider an annual donation to keep this site running.

Here are some of the features available - once you register at RennTech.org

  • View Classified Ads
  • DIY Tutorials
  • Porsche TSB Listings
  • VIN Decoder
  • Special Offers
  • OBD II P-Codes
  • Paint Codes
  • Registry
  • Videos System
  • and get rid of this welcome message

It takes just a few minutes to register, and it's FREE

Contributing Members also get these additional benefits:
(you become a Contributing Member by donating money to the operation of this site)

  • No ads - advertisements are removed
  • Access the Contributors Only Forum
  • Contributing Members Only Downloads
  • Send attachments with PMs
  • All image/file storage limits are substantially increased for all Contributing Members
  • Option Codes Lookup
  • VIN Option Lookups (limited)

Recommended Posts

I am completely flummoxed by this noise I am getting in my 2004 Turbo Cab.  A couple nights ago while driving home with the top down, I noticed a rattle different from the normal sound of the motor and not accelerating/decelerating with changes in engine RPM.  It occurred at 1800-2000 rpm and was most noticeable when decelerating in 2nd gear in my neighborhood at slow speeds (~20MPH)...  with a helper on the throttle and the engine compartment open, it sounds like it is coming from the right side-top of the engine, around the Hydraulic reservoir.  Putting a spanner/wrench on the component and up to the temple seems to have confirmed this as the source.  I checked my manual and the Pentosin level (mid range on the HOT side of the dipstick at operating temp)  I realize that Porsche recommends checking at 20C but I live in Texas now and that won't happen until November.  Just out of curiosity I looked at the clutch reservoir up front and after removing the gooey trim cover, found it leaking (Seeping) from the recently replaced cap and appearing to be overfilled.  The car has never really been operated in the 8 years I have had it in particularly high average temperatures, so I am hoping that the front is thermal expansion.  Any thoughts on this matter are greatly appreciated... Loren?  What Say You??

 

Thanks in advance,

 

Share this post


Link to post
Share on other sites
    You can remove these ads by becoming a Contributing Member.

Could be worn out or the bearing got dry and then was likely damaged by running the pump dry.

I have seen a few of the PS units lose fluid and then seize up or worse start a fire.

best remove the belt and check for wobble and smoothness - of all pulleys.

Share this post


Link to post
Share on other sites

Fluid transfer and overflow to the front reservoir is typically a slave cylinder issue. 

Share this post


Link to post
Share on other sites

Take a turkey baster and suck  some of the brake/clutch fluid out of the reservoir to return it to a normal level....then keep an eye on it.

Agree with Loren completely.  If the power steering pump is making a rattle noise, remove the serpentine belt and check the pulley for play and smoothness.  Check all the other pulleys as well, including the water pump.  Good time to put on a new serpentine belt and replace the air filter.

Share this post


Link to post
Share on other sites

Agree with all.  Checked the Pentosin this morning and fluid level in the PS reservoir is spot on.  I'll pull some fluid out of the front reservoir and keep a closer eye on that.  I think I may be getting the start of a slave cylinder issue again (replaced at 30,000-ish miles, now have ~58K on the car) as I have a little creak that I can feel in the clutch pedal.  I'll pull the air box and check all the pulleys and advise with what I find.  Thanks everyone!

Share this post


Link to post
Share on other sites

Odd. A Porsche clutch slave cylinder should last a lot longer than 30,000 miles. Unless I'm misunderstanding, neither the clutch nor the power steering has anything to do with engine speed ... in 2nd gear.

 

With the car at a standstill and the engine running, do you hear anything when the steering wheel is turned full lock in both directions? Likewise, when depressing the clutch?

 

 

Share this post


Link to post
Share on other sites

To avoid confusion, I think there are two different issues... disregard my thoughts on the slave cylinder for now...  separate issue (if it even is an issue).  Drove the car a few miles at low RPM this morning and the clicking is most noticeable in 2nd gear when the clutch is engaged and the car is moving.  For whatever reason I think 2nd gear provides the right engine RPM and vehicle speed speed so the wind noise and engine noise are low enough to hear the clicking or rattle.  Even then it is very difficult to discern.  I have been able to recreate it while stopped with the clutch in (disengaged), but it appears to go away when the clutch is disengaged and the car is moving, like if I were stopping at a stop sign...  Got the air box off and am waiting for the compartment to cool down before I pull the belt and check the pulleys.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Similar Content

    • By OscarAH1W
      Odd one for the group here:
       
      I have a 2004 Turbo Cab (manual) with X50 that I have owned since early 2010 and put around 30K miles on in that time (Bought with ~20k miles).  I recently found a 2004 Turbo Cab (Tiptronic) with ~29,000 miles that was such a good deal that my parents purchased it.  I drove the thing recently while visiting and a couple times in constant-radius turns on back roads, the PSM intervened out of nowhere (The first time it happened I actually thought I hit a shift button with my thumb and downshifted mid corner).  Anyway, I got it to intervene once more in a pretty benign turn.  There certainly wasn't 7 degrees of slip angle and I have to push my own car much harder (read: screw up the corner entry) to get PSM to intervene.  I guess my question(s) is/are this:  Is there a difference in the PSM software between the Tiptronic cars and Manual?,  a malfunction in the Tip?
       
      Very interested to hear the responses.  Thanks
       
       
    • By dlipka
      Hi - I am looking for some help.  The headlights are the litronic ones.
       
      I don't drive the car very often - maybe once a month and often this is in the daylight.
       
      I had a headlight globe 'fail' about 12 months ago.  I replaced it and everything seemed good.  Then it stopped working.  Then it started working.  Then both headlights stopped working - some of the time.  I am beginning to think that this is possibly not a globe problem.
       
      Any suggestions?
       
      Thanks,
       
      Derek 
×

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.