Jump to content

The RennTech.org community is Member supported!  Please consider an ANNUAL donation to help keep this site operating.
Click here to Donate

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 (limited)
  • VIN Decoder
  • Special Offers
  • OBD II P-Codes
  • Paint Codes
  • Registry
  • Videos System
  • View Reviews
  • 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

    You can remove these ads by becoming a Contributing Member.

i have read one thread about idle dropping for a second while coming to stop and in the end some guys saying its engine mounts

any other sugestion will be helpfull and thanks for replying and tying to help

Link to post
Share on other sites

i have read one thread about idle dropping for a second while coming to stop and in the end some guys saying its engine mounts

any other sugestion will be helpfull and thanks for replying and tying to help

Engine mounts will not affect idle speed. Have you cleaned the throttle bodies?

Link to post
Share on other sites

its clean no black resdue in thethrotle body butterfly ?

but still idle drops for a split second while coming to stop light making the engine to vibrate for split second tho ?

also no engine errors coming up ?

Link to post
Share on other sites
  • 9 months later...

Lower engine mounts are filed with oil and they can get collapsed through time.

Anyway I have vibrations at idle, but this could be only mounts related, coz engine is running great and smooth like it should.

Link to post
Share on other sites

Yep, the engine mounts are hydraulic and they do settle as gbratk mentioned.

The engine then transmits its vibes to the chassis without the dampening of the hydraulic mounts.

Cayenne S engine mounts can be done without engine removal.

Cayenne turbo needs the engine removed to replace the mounts.

Regarding the idle drop, the new mounts mask the vibration felt during the sub idle condition when coming to a stop.

The new mounts do not fix the root cause of the sub idle condition.

Link to post
Share on other sites

I havent carried out the mount replacements so don't know if it can be done without engine removal for the turbo.

Below is the statement from the maintenance manual 10-35-19.

This task can only be performed in the Cayenne S (M48/00) if the engine has been removed or suspended on the body. This description covers suspension on the body.

The engine must be removed on the Cayenne Turbo (M48/50) → 100119 Removing and installing V8 4.5 l engine - section on "Removing". The turbochargers are removed next. → 213021 Removing turbocharger - section on "Removing" [9PAAF1 9PAAJ1]→ 213021 21 Removing turbocharger - section on "Removing" [9PAAE1 9PAAE7].

Link to post
Share on other sites

I havent carried out the mount replacements so don't know if it can be done without engine removal for the turbo. Below is the statement from the maintenance manual 10-35-19. This task can only be performed in the Cayenne S (M48/00) if the engine has been removed or suspended on the body. This description covers suspension on the body.The engine must be removed on the Cayenne Turbo (M48/50) → 100119 Removing and installing V8 4.5 l engine - section on "Removing". The turbochargers are removed next. → 213021 Removing turbocharger - section on "Removing" [9PAAF1 9PAAJ1]→ 213021 21 Removing turbocharger - section on "Removing" [9PAAE1 9PAAE7].

THANK YOU !!!
Link to post
Share on other sites
  • 5 years later...
  • Admin
54 minutes ago, Aaron Kirchner said:

Need to replace both lower motor mounts on my 2004 Cayenne S. Any tutorial or pointers? Best practice without a lift or dropping engine? Thanks! Oh, best price and parts?

 

:welcomeani:

 

As stated above you may want to be sure you have the tools and equipment to do this job. Not an easy DIY.

"This task can only be performed in the Cayenne S (M48/00) if the engine has been removed or suspended on the body."

Link to post
Share on other sites
On 3/6/2018 at 4:50 PM, Aaron Kirchner said:

Need to replace both lower motor mounts on my 2004 Cayenne S. Any tutorial or pointers? Best practice without a lift or dropping engine? Thanks! Oh, best price and parts?

 

Just to reiterate what loren has said there really is no way to do the job without having the engine suspended from the body and the front axle sub-frame removed.  The mounts sit down in little cups on the engine carrier and they have a stud that goes up through the brackets bolted to either side of the engine.  Unfortunately this is really not a shade tree mechanic job at all on the V8 engines.  Now the vr6 is a different story.

Link to post
Share on other sites
  • 3 weeks later...
On 3/6/2018 at 8:50 PM, Aaron Kirchner said:

Need to replace both lower motor mounts on my 2004 Cayenne S. Any tutorial or pointers? Best practice without a lift or dropping engine? Thanks! Oh, best price and parts?

No need to drop the engine. Just loosen the bolts from the subframe and you will get them out. I did it while the car was on jack stands.

  • Like 1
Link to post
Share on other sites
  • 1 year later...

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...

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.