Question about 2006 Volkswagen Passat
Ok, so I can get a clear picture.......how many kms has it got on it......you say it is a 1.8L turbo.........and has any work being performed on it recently........and have you had the scan tool on it to see if it comes up with any codes.......
Posted on Oct 25, 2010
Actually I do, your back pressure valve that is supposed to close when you shut down is not closing like it should or you have a leak on the line that only presents when it is sucking Air. Both are common, we normally call them Vapor Lock. I'm sure you heard the one about putting a close pin on the line where it enter the Injector lines, I have found this seldom works with anything but a Rochester Carb known as the Quadrajet, it appears dependable but it is a nightmare to work on. Anyway, You need to disconnect and plug the line at the fuel pump and to a Leak down test to isolate. Once you have the line plugged pressurize the line to 15 psi and attach a gauge unit it the lines, let sit overnight and check pressure. If it has lost pressure over night you have a very small leak on the line and will need to trace the line. Do not use more than 15 psi on that line. Pressurizing with Air is much different from pressure with fuel. If no lose is found, replace the fuel pump. If you have already replaced this pump you need to take it back and get one that has a good back pressure valve, in any event, replace again. The line stay pressurized even after you have shut the vehicle down. Some leakage back to the tank is expected but if there is too much an Air bubble forms in the line and locks the injectors or causes the pump to **** air. In rare, and I mean rare, situations there is damage to the inside of the fuel tank it self causing this problem. There is a baffle inside that is just tac-welded in place. It is designed to stop the fuel from knocking the pump around when traveling. If you have a plastic tank it is still possible it is damaged but Highly Unlikely.
Posted on Oct 24, 2010
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
Here's a link to this great service
Posted on Jan 02, 2017
Tips for a great answer:
May 22, 2014 | 2004 Volkswagen Passat
Apr 24, 2013 | 2000 Volkswagen Passat 4Motion
Feb 01, 2011 | 1998 Volkswagen Passat
Jun 11, 2010 | 2003 Volkswagen Passat
Nov 27, 2009 | 2004 Volkswagen Passat
Oct 19, 2009 | 2003 Volkswagen Passat
Sep 20, 2009 | 2004 Volkswagen Passat
Sep 02, 2008 | 2004 Volkswagen Passat
May 20, 2018 | 2006 Volkswagen Passat
270 people viewed this question
Usually answered in minutes!