» » »

Volkswagen Q&A

Ask Your Question

2004 Volkswagen Touareg Question: Is it difficult to replace the main fuel pump on my touareg?

 

Question

etherine, 4.2L V8, Elmwood Park, IL, May 16, 2012, 05:08
 Rookie

I believe the fuel pump is going badn the vehicle shuts down after 30 sec.

3 Answers
Flag This
  • Answer #1

    JohnPierceAutoCare from John Pierce Auto Care, May 16, 2012, 05:25
     Enthusiast

    Typically if the vehicle starts and runs the fuel pump is okay. There are times in which the pump works but doesn't have enough pressure, these times are rarer than not. There are many components in the engine management system of your car, and almost any one of these can cause a stalling condition. I would spend the money and have a shop check it out, before I start making a bunch of expensive guesses.

    Flag This
  • Reply

    etherine, May 16, 2012, 05:42
     Rookie

    Thank you for sound advice.

    Reply
    Flag This
  • Answer #2

    Greg's Orange Auto (12205 Answers) , Orange, CA - (714) 361-9386
    globalhelper May 16, 2012, 06:37
     Master

    preform a fuel pressure test and monitor pressure when it dies b4 you condem the pump

    Reply
    Flag This
  • Medium-star Best Answer
    cbcarch March 11, 2013, 18:00
     Rookie

    The Touaregs have 2 fuel pumps, V6 and V8s are slightly different setup. (Not sure about V10)
    They are both located under the back seat. You will need a special 12 point 10mm tool to remove some bolts which hold the seat brackets in place so you can gain access to the pumps covers. These bolts are very tight so make sure you use the correct tool, and a breaker bar for torque. You will also need to cut out a circular hole in the carpet above each pump cover. The covers have 10mm nuts which need to be removed. You can pry the covers off with a flat screwdriver. The old pumps have quite a few hoses and wires connected to them so clean everything and mark them before removal. Do one pump at a time. There is a non-pressurized hose connecting the two pumps as well. On the V6 3.2, the driver side is the Main Pump, and the passenger side is the aux pump which is used when starting only,(and under severe loads such as acceleration) then the main pump kicks in.
    The main pump usually fails as it is used 90% of the time, but it is smart to replace both pumps. This explains why it starts and runs for 10-15 seconds and then dies. You should also replace the fuel filters--which I believe are located inside the sending unit(s). There are also 2 circular seals/gaskets which go onto the body at the pump housing. Good luck!

    Flag This
  • Reply

    rucko, September 17, 2013, 11:21
     Rookie

    Cut the carpet ? That doesn't sound very professional to me !

    Flag This
  • Reply

    globalhelper, September 17, 2013, 12:03
     Master

    ck all fuses 1st b4 repl pump

    Reply
    Flag This