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 Richard Your Own Question

Richard
Richard, Jaguar Technician
Category: Jaguar
Satisfied Customers: 13790
Experience:  12 years at a Jaguar dealer as technician and shop foreman.
Type Your Jaguar Question Here...
Richard is online now
A new question is answered every 9 seconds

2001 Jaguar S-Type 3.0....codes P1386 and P1388 come up. Mechanic

Resolved Question:

2001 Jaguar S-Type 3.0....codes P1386 and P1388 come up. Mechanic "re-flashed" the ECM and added heavy oil to the engine. Codes came back. Any ideas where to look?
Submitted: 4 years ago.
Category: Jaguar
Expert:  Richard replied 4 years ago.

Hello and welcome to justanswer.com

 

Usually the fault codes are P1383 and P1388 for both VVT units over retard. The first repair would be to reprogram the PCM then change the engine oil and filter with a thicker oil (10 W 30). Since you have P1386 and P1388 they are both for bank 2 VVT (driver side). This is caused by either a faulty VVT carrier unit or low oil pressure from a worn engine. The oil pressure needs to be checked with a gage and the pressure read when hot.

Richard, Jaguar Technician
Category: Jaguar
Satisfied Customers: 13790
Experience: 12 years at a Jaguar dealer as technician and shop foreman.
Richard and other Jaguar Specialists are ready to help you
Customer: replied 4 years ago.

Thanks. The jag dealer already re-flashed the PCM (I think that's the same as re-programming). Codes P1386 and P1388 came back. I cancelled the codes last night and now, after driving for 45 minutes, I have DTC P1386 in pending status. P1388 is not back yet. Next steps will be to test the bank 2 VVT and/or replace it. With just 85K miles on engine and it runs great I'm assuming it's not engine wear but I will check oil pressure to be sure.

 

The fact that just the P1386 is pending, does that provide a clue? Should I drive more and see if it clears on its own after recycling?

Expert:  Richard replied 4 years ago.
It sounds like the internal spring on the VVT is faulty. I would drive it to see if the engine light comes on and which codes are flagged. The next step would be to check oil pressure.
Customer: replied 4 years ago.

 

I found a part number AJ810570 for the V V T Solenoid. Does that sound right?

 

Is this part difficult to install in Bank 2 (driver side). I found something that looks like it could be the part. It's sitting just in front of the #4 spark plug. Does that sound right?

 

My mechanic told me the part no. is XR816241 (need to pull part of engine apart to install. I think mechanic is wrong. Research tells me his part no. is the Sprocket-Camshaft.

 

What say you?

Expert:  Richard replied 4 years ago.
The part number for the solenoid is XR816235 which is under the driver side valve cover which needs to be removed. Usually this code is not caused by the solenoid. The VVT unit itself is serviced with the cam sprocket and that part number is XXXXX for VIN before L75999 and XR816241 after that VIN. If the sprocket is replaced the chains need to be removed so this is an involved repair.

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:

 
 
 
  • Anthony

    ASE Certified Technician

    Satisfied Customers:

    351
    ASE Master Automobile Technician with over 20 years exp. in this field.
< Last | Next >
  • http://ww2.justanswer.com/uploads/CA/caprio23/2011-12-13_155550_20111213105344.64x64.jpg Anthony's Avatar

    Anthony

    ASE Certified Technician

    Satisfied Customers:

    351
    ASE Master Automobile Technician with over 20 years exp. in this field.
  • http://ww2.justanswer.com/uploads/35/350matt/2012-6-7_182356_matsavatr.64x64.jpg Matt's Avatar

    Matt

    Engineer

    Satisfied Customers:

    295
    Mechanical Engineer with 20 years experience in the auto industry, 8 yrs in formula 1 engine testing
  • http://ww2.justanswer.com/uploads/MO/molurch/2012-6-6_214526_500.64x64.png Don 'Mo Lurch''s Avatar

    Don 'Mo Lurch'

    Jaguar Mechanic

    Satisfied Customers:

    180
    Import Training, Heavy Line Mech, Mobile Electronics. Sales, Installation & Repair for 30 years
  • http://ww2.justanswer.com/uploads/EU/eurotec/2012-6-11_13153_mpjaphoto.64x64.JPG Marty's Avatar

    Marty

    European Car Expert

    Satisfied Customers:

    170
    ASE & Bosch Certified Master Tech. Over 30 years experience.
  • http://ww2.justanswer.com/uploads/audidoc/2008-12-23_175252_headshot.jpg JagDoc's Avatar

    JagDoc

    European Shop Owner

    Satisfied Customers:

    127
    20 years of experience working with Jaguars. Independent European shop owner and technician.
  • http://ww2.justanswer.com/uploads/jcjcrespo/2009-06-07_193210_xtratech.jpg Juan Crespo's Avatar

    Juan Crespo

    ASE Certified Technician

    Satisfied Customers:

    96
    30+ years experience
  • http://ww2.justanswer.com/uploads/gemmechanic/2009-05-04_110543_dsc07268.jpg gemmechanic's Avatar

    gemmechanic

    Mechanic

    Satisfied Customers:

    84
    Advanced Trade Certificate in Automotive engineering. 30+ years in the automotive industry