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)
Ricky1
-
Posts
72 -
Joined
-
Last visited
Community Answers
-
Ricky1's post in 2005 CS cannot idle was marked as the answer
Right side fuel pump was the problem says Porsche Service. Porsche strongly recommends changing both pumps even if one is still working. Says they never ever replaced only one pump before. Porsche also said my warranty company wasn't a good one since the warranty would only cover one pump and not both. Warranty contract says "fuel pump" not "fuel pumps" plural nor "fuel system".
Anyways, it has two new pumps and other stuff like a new regulator and filter. The Cayenne now is more reliable before this service along with a new fuel filter. The following photos are of the parts I requested I get back from the dealership... a "unusual request" from a Porsche owner according to them. Well one pump was still working, right? Anyways, here are photos of the fuel pumps and other parts. Something that I would have liked to see ahead of time myself. I also dismantled a fuel pump assembly down to the motor and impeller itself. There is a CZ site that is selling the motor and impeller for about 105 Euro.
All Parts
Top of pump assembly... has VW stampped on top
Bottom of Venturi Tube... has VW and Audi circles
Venturi Tube, again VW and Audi
One fuel pump assembly... individual parts
The pump itself with side opening for impeller.
ps. After moving the impeller with a small screwdriver and applying 12 volts to the pump that was at fault, the motor spun up and ran. It did not run smoothly at its operating position (impeller end down), nor horizontally, but did ran smoothly "upside down". My guess is the bearings or bushing that bears the weight of the spinning parts of the motor itself are worn out. Suggestion to Porsche... make your fuel pump motors run in a horzontal position. But then no automobile is suppose to run forever... without maintenance. Since this incident was my first dealing with a Porsche dealership and seeing all the cars going in to the service bays, I pretty sure the dealship makes more money from servicing than selling Porsches... yep, I am new Porsche owner.