How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask vwtech0405 Your Own Question

vwtech0405
vwtech0405, VW Technician
Category: VW
Satisfied Customers: 10353
Experience:  VW Master Technician VW Certified
22815973
Type Your VW Question Here...
vwtech0405 is online now
A new question is answered every 9 seconds

VW Touareg: fuel system..car running..both pumps are bench tested

Resolved Question:

The VW Touareg 2004 3.2 engine fuel system acting up . the car running 15 sec. only, start agen run other 15 second, both pumps are bench tested are OK . problem is vanish, 6 month later the same issue .Please help me ,Thanks Steve
Submitted: 4 years ago.
Category: VW
Expert:  vwtech0405 replied 4 years ago.
Can I please have your vin # XXXXX I can look up some info for you? Only one pump stays on all the time
Customer: replied 4 years ago.

Vin # XXXXX

Expert:  vwtech0405 replied 4 years ago.
Ok give me a couple of minutes to look up some info for you thanks
Expert:  vwtech0405 replied 4 years ago.
The main/primary fuel pump location depends on the type of engine the vehicle is equipped with.
On the 3.2L V6 engine, the primary pump is located on the left (driver’s) side of the fuel tank.Location of the main fuel pump can also be determined by restarting the engine (if possible)
then checking to see which pump continues to run after 30 seconds. The secondary pump will
shut off after 30 seconds and will not run until needed.


You can check the issue you have with 2 test lights the drivers side pump should always stay while the car is running you can use a test light to see that the passenger side fuel pump only comes on for 30 seconds the the power is not provided to it no more after 30 seconds thats when the drivers side should always stay on usually the most common this is that the vehicle will start and die out after 30 seconds and if thats the case you have a faulty primary pump .

When you do go to replace the pump you will have to get 2 new seals because you will have to take out the passenger side out also because there a couple of lines that run from one pump to another make sure you do one line at a time this job is very easy to get confused and not know where the lines go .
I hope this helps.Please don't forget to click accept for my answer and advice this is the only way i get compensated for my time and knowledge thanks!
Customer: replied 4 years ago.

Yesterday when I tested the passenger side pump it was running 15-20 sec, then the engine stopped, during the testing the driver side pump returned to normal It.druw 8 Amp. The car is running fine today, the same thing happened 6 months ago ,I drove the car 3000Ml then it acted up . Why is the pump acting up occasionally ,as a DC motor either it is working or not , why is it going mental in a 6 month period? do you have any other suggestion beside replacing the "good running pump".?

 

Thanks

 

Steve

Expert:  vwtech0405 replied 4 years ago.
You may have a issue with the lines that connect both of the fuel pump inside the tank . Or you may be loosing signal to the pumps .
Customer: replied 4 years ago.

How the two fuel pumps are synkronized? why only one pump is running continously. ?

what is the reason vw using two pump instead one .?

Expert:  vwtech0405 replied 4 years ago.
They only use one pump one to prime the system and the other one to keep the vehicle running they do this so you won't stress out the pump .I am not really sure why Vw does this .
Expert:  vwtech0405 replied 4 years ago.
I have never seen the fuel pumps be a sporadic issue they usually come in to the shop towed inn on a flat bead because the truck will not stay running and its always a fuel pump issue when the vehicle dies out there no other issue that i have seen or heard of personally that one day they work and the other day they don't . I hope all the info given to you helps.

Please let me know if you need anything else also please don't forget to click accept for my answer and the advice given to you today this is the only way i get compensated for my time and knowledge thanks again!
vwtech0405, VW Technician
Category: VW
Satisfied Customers: 10353
Experience: VW Master Technician VW Certified
vwtech0405 and 2 other VW Specialists are ready to help you
Customer: replied 4 years ago.
As it looks I'm stuck with the unique problem , I was hoping since there are so many touareg on the road the VW mechanics run into the same problem . Of course knowing the vw dealers mentality they just want to replace both fuel pumps without any further testing. This happened to me after replacing the altenator, in order to correct the fuel issue.Then after they told me both pumps need to be replaced,I insisted they remove both pumps for bench testing ,both pumps past the test with 2 Amp draw, The pumps were reintalled ,(the labor cost was $400 )without solving the problem, The Touareg was running fine for 6 months ,then acted up, As of now it is running fine ,the question is for how long? I'm going to solve this issue the next time it's acting up. I will isolate the power supply to the pump , then check the pump for open circuit..

JustAnswer in the News:

 
 
 
Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.
 
 
 

What Customers are Saying:

 
 
 
  • I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry. Stephanie P Elm City, NC
< Last | Next >
  • I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry. Stephanie P Elm City, NC
  • used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future. David L. Richmond, TX
  • 9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much. Phil Marysville, CA
  • Lurch. Thank you very much. I had real doubts about this website but your promptness of response, quick followup and to the point answer with picture was incredible. Charles Walnut Creek, CA
  • As a single woman, I really appreciate an excellent and affordable opinion.
    Thank you Geordie, I will not hesitate to contact justanswer in the future!
    Sue Charleston, WV
  • Another great insight to what may be the problem. I will have my mechanic take a look at it tomorrow. Thanks again, Frank...you do indeed know your stuff. Jim Castleberry, FL
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
 
 
 

Meet The Experts:

 
 
 
  • vwnewton

    VW Owner,ASE Master and L1 Advanced

    Satisfied Customers:

    307
    25 years of VW obsession turned into a job, last 15 years as a VW Tech.
< Last | Next >
  • http://ww2.justanswer.com/uploads/vwnewton/2008-12-27_221405_JA_avatar.jpg vwnewton's Avatar

    vwnewton

    VW Owner,ASE Master and L1 Advanced

    Satisfied Customers:

    307
    25 years of VW obsession turned into a job, last 15 years as a VW Tech.
  • http://ww2.justanswer.com/uploads/audidoc/2008-12-23_175252_headshot.jpg VWDoc's Avatar

    VWDoc

    Independent VW Shop owner

    Satisfied Customers:

    1713
    20 years of experience working with VW's. Independent European shop owner and technician.
  • http://ww2.justanswer.com/uploads/35/350matt/2012-6-7_182356_matsavatr.64x64.jpg Matt's Avatar

    Matt

    Engineer

    Satisfied Customers:

    506
    Mechanical Engineer with 20 years experience in the auto industry, 8 yrs in formula 1 engine testing
  • http://ww2.justanswer.com/uploads/CA/carbezerk/2011-3-13_103612_SAM0048.64x64.JPG Martin's Avatar

    Martin

    auto electrical

    Satisfied Customers:

    475
    South African Trade Diploma in Auto Electrical
  • http://ww2.justanswer.com/uploads/terocoga/2009-08-17_050126_015.JPG RobJackson's Avatar

    RobJackson

    VW Mechanic

    Satisfied Customers:

    416
    Started working in VW/Audi dealership in 1999. 2009 Registered and Certified VW Tech. ASE Master
  • http://ww2.justanswer.com/uploads/TI/tim37857/2011-10-28_23053_S6301814.64x64.JPG Tim's Auto Repair's Avatar

    Tim's Auto Repair

    mechanic

    Satisfied Customers:

    397
    Have owned a repair shop for 25 yrs.
  • http://ww2.justanswer.com/uploads/RO/rodcuda/2011-7-25_224114_Donhoff1.64x64.JPG Neal's Avatar

    Neal

    VW Mechanic

    Satisfied Customers:

    391
    Shop owner and experienced in most brands.
 
 
 
Chat Now With A VW Mechanic
vwtech0405
vwtech0405
VW Mechanic
10353 Satisfied Customers
VW Master Technician VW Certified