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 Randall C Your Own Question

Randall C
Randall C, ASE Certified Technician
Category: Car
Satisfied Customers: 11259
Experience:  32 years Foreign / Domestic Cars All aspects of Diag and Repair
13677702
Type Your Car Question Here...
Randall C is online now
A new question is answered every 9 seconds

Isuzu Rodeo: 2001 Isuzu Rodeo, 105000 miles, 3.2L V6, 4WD.

Customer Question

2001 Isuzu Rodeo, 105000 miles, 3.2L V6, 4WD.

On cold days I hear an engine knocking sound and it stays on for about 2 minutes until the engine has warmed up a little and goes away. Oil and filter haven been changed on a regular basis. I haven't checked the oil level recently and since there are no leaks, I'm assuming that it's ok. What could be causing this?
Submitted: 1 year ago.
Category: Car
Expert:  Randall C replied 1 year ago.
Hello, I am Randall. I have reviewed your question and working on it now.
A few things. If the noise is coming fr4om engine? you may want to confirm, your choice to be 100% byt removeing the engine belt and running when coold just to be sure from engine. I am usre what grade or viscosity of oil you use, but if the noise is from engine, i would first check oil levle. Then if ok? i would consider having it changed and maybe consider s afull or semi synthetic oil
The normal oil is 5W-30 but 10w-30 may be needed. Its possible it is thickening and just not quite getting to the top of engine as thicker oil whan cold. the advantage to semi or full sytntethic is it sticks to the bearing much better, is not affected by heat or cold engine and will remain viscosity at all times and less frequent oil changes. It does cost more but Mobile 1 synthetic would eb a good choice on next oil change.If you chose to saty with the 5w-30. be sure it is a good brand. name brand and consider and addtive like Lucas oil additive which will help oil cling to bearings that much better.If problem persists/ then i would get a technician to listen to engine when cold asan internal problem could be developing but from age and low miles? i tend to lean away from this. i am thinking its going to be oil related and need to change to 10W-30 and full synthetic or at minimum semi synthetic oil and drive for a few weeks and keep close eye on oil level and this may very well correct the problem

I hope this helps. please remember to rate my service before exiting the site so I can be credited for my time.

When you are satisfied with the information I’ve provided, I would appreciate your positive rating. I truly value your feedback.

Randall C, ASE Certified Technician
Category: Car
Satisfied Customers: 11259
Experience: 32 years Foreign / Domestic Cars All aspects of Diag and Repair
Randall C and 12 other Car Specialists are ready to help you
Customer: replied 1 year ago.

Hi Randall,


 


Thanks for the suggestions. During my oil change, I always tell them to put in full synthetic oil and have purchased Mobil 1 from Costco in the past. Will get the 10W-30 rated oil this time and try it.


 


Thanks again. Happy New Year.


 


Rohith

Expert:  Randall C replied 1 year ago.
let me know how you make out. Thanks

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