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 sprinkles08 Your Own Question

sprinkles08
sprinkles08, ASE Certified Technician
Category: Car
Satisfied Customers: 16477
Experience:  ASE Master and Advanced level certified. Factory trained with 14 years dealership experience
Type Your Car Question Here...
sprinkles08 is online now
A new question is answered every 9 seconds

Subaru Impreza 2.5I Engine Ticking

Resolved Question:

Hello, Just had the head gaskets replaced on my 2007 Subaru Impreza 2.5i. Vehicle drove great for the first two days, but has now developed a ticking sound at idle/low rpms. Have checked oil... lots there. No smoke from exhaust. Ticking sound seems to be coming from the top of the engine, near the alternator. Pulleys and belts seem solid and tight, but the mechanic mentioned they would replace the timing belt. When I rev up to ~3000 rpms, the noise seems to go away (or just becomes too faint to hear over the engine... see video). I plan on taking the car back to the mechanic that did the gaskets, but they don't open until next week. I was hoping to get some ideas about the cause before then so I can decide whether to leave the car parked or if we can still use it. Video here: http://youtu.be/A99Cz3vsAN8 Thanks.

Submitted: 8 months ago.
Category: Car
Expert:  sprinkles08 replied 8 months ago.

Hello and welcome to JustAnswer!

 

The noise is pretty bad, I wouldn't recommend driving it before it's repaired unless absolutely necessary. Is the oil light coming on? If the oil light is coming on then I wouldn't recommend running the engine at all.

 

The noise sounds a lot like a rod or wristpin knock where a lifter should give more of a lighter ticking type noise, but it can be a little hard to tell without hearing it in person. Valvetrain noise should appear to come from the extreme left and right sides of the engine from under the valve cover area.

 

One thing you can try is disabling each cylinder one at a time by unplugging the fuel injectors and see if the noise lessens, if it does then you know it's a deeper issue than a lifter. This takes away combustion pressure and will lessen or stop a wristpin and should lessen a rod knock also.

 

Since major engine work was just done I hope that the shop will make this right since you weren't having any problems before. If it's a bottom end issue then that wouldn't likely be related to the work they did, but if the noise is coming from the valvetrain or even foreign debris that made it into the engine (dropped bolt, etc) then it should be related.

 

sprinkles08, ASE Certified Technician
Category: Car
Satisfied Customers: 16477
Experience: ASE Master and Advanced level certified. Factory trained with 14 years dealership experience
sprinkles08 and 11 other Car 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
  • 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