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 Chris (aka-Moose) Your Own Question

Chris (aka-Moose)
Chris (aka-Moose), Technician
Category: Car
Satisfied Customers: 913
Experience:  16 years of experience
2499435
Type Your Car Question Here...
Chris (aka-Moose) is online now
A new question is answered every 9 seconds

RA-HL

Customer Question

I have a tricky one here and would like to get your input:
RR 2005 HSE 4.4 (M62 engine)
93000mi
Error code: Bank 1 retarded timing
Background information:
The started making the engine rattle/knocking noise where at first impression one thinks that the chain is lose and the chain rail is bad. My friend, who owns a shop, and I fixed a BMW 740 (same engine) about 3 months ago where the chain and the rails had gone bad and the noise was almost identical. The BMW was very sludged up – we scraped chuncks out of the oil pan and only had to do the chains, not the Vanos (for comparison)

Now here is the challenge:
1) We changed the chains and both VANOS (!) along with the all tensioners and believe it or not the noise is still there!
a. I know that the timing is spot on – 1000% !
2) We switched the Vanos Solenoid from side to side with no change in error code – the Solenoid seems ok and I assume if they were broken I would get a different error message.
3) We checked the stop valve behind the solenoid which is ok (only for start up anyway)
4) We checked the oil pressure at the oil filter which is all right as well (around 45psi/3bar I think I remember)
There is not a whole lot left that can be done here….I am dreading to do the next step (oil pump change – 14 labor hours!!) before I have ruled out other potential causes.
Our suspicion is that the oil pump which seem to have 2 outgoing feeder pipes - where the smaller one of the feeder pipes is delivering oil to the Solenoid which feeds it into the Vanos might be blocked – we unscrewed the Solenoid to see if there is oil being delivered and it seems too little oil delivery to feed the Vanos to build an oil cushion to adjust to the solenoid timing change requests (+/- 20 degrees, default fully retarded -20 degrees)
A long shot would be to spray carb cleaner into/at the Solenoid valve canal and therefore down to the feeder pipe/oil pump but I would feel better if I had an oil flow diagram of the engine which is nowhere to be found…(I checked on the bimmer sites already..)
Submitted: 1 year ago.
Category: Car
Expert:  Chris (aka-Moose) replied 1 year ago.

Hello, I'm Chris. Thanks for visiting Just Answer.

 

Sorry for the long wait, this area of concern is not my strong point but I will try to help as best I can at least with some information if your still needing help.

Customer: replied 1 year ago.

Hi Chris - it is almost 11pm! A bit late for that, no?


If this is not your strong suit how can you help me then? I am pretty advanced myself as you can see by the details I provided you with.

Expert:  Chris (aka-Moose) replied 1 year ago.
So are you asking me to opt out so you can continue waiting for another? I only approached you because so far everyone in the past 8 hours has decided not to help.
Customer: replied 1 year ago.
I appreciate that Chris however unless you are sure you know the answer it is probably the best option. Thanks
Expert:  Chris (aka-Moose) replied 1 year ago.

At your request I will opt out, if you find your tired of waiting, then reply on this post and I will see it and try to help. DO NOT reply until then or until another starts helping or your post will be locked only to me.

 

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
  • Excellent reply, and also very quick. Really sounds like the Expert knows what he is talking about. I will be back to use your service when I need more help with my RV. Dutch USA
 
 
 

Meet The Experts:

 
 
 
  • Chris (aka-Moose)

    Technician

    Satisfied Customers:

    846
    16 years of experience
< Last | Next >
  • http://ww2.justanswer.com/uploads/MU/muddyford/2012-6-13_1204_1.64x64.png Chris (aka-Moose)'s Avatar

    Chris (aka-Moose)

    Technician

    Satisfied Customers:

    846
    16 years of experience
  • http://ww2.justanswer.com/uploads/TE/TedG/2012-6-15_14759_avaLarge.64x64.jpg Ted G.'s Avatar

    Ted G.

    ASE Certified Technician

    Satisfied Customers:

    1596
    20 years auto repair experience, ASE Master Tech, Mechanical Failure consultant, Expert Witness
  • http://ww2.justanswer.com/uploads/joecamel90/2008-11-13_03615_head_shot.jpg George H.'s Avatar

    George H.

    ASE Certified Technician

    Satisfied Customers:

    1311
    ASE Master Tech 15+ yrs, AAS Automotive Technology, Factory trained Asian specialist
  • http://ww2.justanswer.com/uploads/AM/amedee/2013-10-24_23656_Amedee1.64x64.jpg Amedee's Avatar

    Amedee

    ASE Master Tech

    Satisfied Customers:

    2367
    ASE Master Tech advanced level specialist
  • http://ww2.justanswer.com/uploads/SU/supermechanic/2013-8-23_03546_500.64x64.jpg Jerry's Avatar

    Jerry

    Master Mechanic

    Satisfied Customers:

    1906
    ASE master, 30+ years. All makes and models. Trouble shooter, shop forman, service manager
  • http://ww2.justanswer.com/uploads/CR/crzydrvr00/2013-11-3_12123_246347.64x64.jpg Richard's Avatar

    Richard

    ASE Certified Technician

    Satisfied Customers:

    942
    12 years Ford Lincoln/Mercury Jaguar dealership as a technician and shop foreman reparing all makes
  • http://ww2.justanswer.com/uploads/ST/Steve7654/2012-6-5_215929_japic800x660.64x64.jpg Steve's Avatar

    Steve

    Auto Service Technician

    Satisfied Customers:

    1980
    25+ yrs experience as a professional working technician; ASE L1 master technician
 
 
 
Chat Now With An Auto Mechanic
Chris (aka-Moose)
Chris (aka-Moose)
914 Satisfied Customers
16 years of experience