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 Marty Your Own Question

Marty
Marty, European Car Expert
Category: Jaguar
Satisfied Customers: 49256
Experience:  ASE & Bosch Certified Master Tech. Over 30 years experience.
Type Your Jaguar Question Here...
Marty is online now
A new question is answered every 9 seconds

No compression in any cylinder. Tried oil, and still no compression.

Resolved Question:

No compression in any cylinder. Tried oil, and still no compression. What now? Jag XJ8 1999
Submitted: 1 year ago.
Category: Jaguar
Expert:  Marty replied 1 year ago.

eurotec :

Hi, and welcome. My name isXXXXX you give me some background on this problem?

Customer:

Several days ago I made the mistake of starting my 1999 Jag XJ8 and driving it across the street into my garage. I shut it down without letting the temp rise to operating level. After the weekend I came home and tried to start it. The engine did crank vigorously and seemed like it had no compression. It spun freely. I towed it to a local shop, and they tried. They recommended a new engine. I consulted the Jag Forum and learned about "bore-wash" and suggested the mechanic try a compression test. The plugs came out for the first time in 118,000 miles and the test resulted in no compression in any cylinder. I suggested oil in each cylinder and try again. No result. They want to install new plugs and try it, and I stalled thinking it would be a waste of $200 with no compression. I have owned this car for 2 years+, bought it used with 86,000 miles and it never failed to start. Some oil shows up in the air filter, but it seems very minor, so maybe there is some blow by. The previous owner changed the oil religiously with Mobil 1, and during my ownership I learned it leaked or used about 1 qt between changes. It ran good, until it didn't run and that was all kind of sudden. I'm not willing to spend $1,000s on a replacement engine, and my high hopes are I screwed up and caused bore wash. I need to know how to correct it and get the car running.

eurotec :

Ok, based on what you are telling me I agree with the cylinder washing. I don't think the shop oiled the cylinders properly. They need to squirt about 8 squirts of motor oil into each cylinder and the put the spark plugs back in and try to start it. You need the plugs in there to help force the oil back around the piston rings. They also need to make sure that they have a strong battery in the car when cranking the motor. I've repaired dozens of these for this problem and I seriously doubt that you need a new engine. With a little persistence you can get the compression back and should be fine.

eurotec :

Also, installing new plugs is a good idea if the original plugs are still in the car. Let me know if you need any more help with this.

Customer:

Thanks.

Marty, European Car Expert
Category: Jaguar
Satisfied Customers: 49256
Experience: ASE & Bosch Certified Master Tech. Over 30 years experience.
Marty and 2 other Jaguar Specialists are ready to help you

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