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 lexpert Your Own Question
lexpert, Lexus Master tech
Category: Lexus
Satisfied Customers: 9974
Experience:  Master Certified with lexus, 8 years experience with Lexus
Type Your Lexus Question Here...
lexpert is online now
A new question is answered every 9 seconds

1998 es300: The back end suspension..clunks..slowly..push down

Resolved Question:

I have a 1998 es300 w/ 128000 miles. The back end suspension makes noise - clunks, when I go slowly over small bumps. When i push down on the back of the car it is very slow to raise back up. The front doesn't move much when I push down on it, but it doesn't make any noise. It has the electronic modulated suspension, but doesn't appear to be working - when I change the setting I don't notice any change.
Submitted: 6 years ago.
Category: Lexus
Expert:  lexpert replied 6 years ago.

Thank you for using just answer.

I am very very familair with your car, aside from owning one I hae worked on these for too many years.......I can fully understand not wanting to spend $2,300 on a repair for a car that is only worth twice that.......let me ask you this- realistically how much longer do you plan on keeping this car? I have a few options for you to consider depending on yoru situatuion

Customer: replied 6 years ago.
well, we just bought it and would like to keep it. The dealer told us that there was nothing wrong with the car because they did all the work on it, so I don't know who to trust.
Expert:  lexpert replied 6 years ago.

Ok, let me ask you this then....if you drive the car over a speed bump does the car bounce several times or does it only shock/rebound one time?

Do you notice any noises from the front like a crunching noise...some customers describe it as a noise similar to pop-corn popping

Customer: replied 6 years ago.
no, it doesn't bounce at all, more like just thuds on the bumps and no crunching noises - more like something is banging around in the trunk, which is what we were told it was when we bought it.
Expert:  lexpert replied 6 years ago.

ok, a banging noise is not mormal on this model.

We have seen a few issues with slight clunking noises and creek/pop noises as the sway bar bushings dry out or the upper strut mount bushings collapse but not a banging noise.


The electronic modulated air suspension was a very very rare option on the ES300, only about 5% of production had this option so you will likely never see another one yourself with this feature. In higher mileage these do tend to stick internally and the price for parts is extremely high. The Lexus LS400 had a electronic system as well and we commonly saw repair bills of $5,000 on these if they fail, not fun to explain to a customer.


My advise and recommendation on your car would be quite simple here to keep cost down. The electronic verses NON-electric suspension systems on the Es300 are physically the same size and the suspension components are interchangable.

If you are going to replace the struts here what I would recommend is to install standard struts/springs and mounts to the car. The electronic parts can simply be discarded and the switch disabled to keep the indicator lights from going off. This is the most simple and cost effective solution. If you do decide to invest the thousands on the electronic parts do be aware that they typically have a very stiff ride quality regardless of setting so you will likely not be happy with the car if you go that route.


lexpert, Lexus Master tech
Category: Lexus
Satisfied Customers: 9974
Experience: Master Certified with lexus, 8 years experience with Lexus
lexpert and 3 other Lexus 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... seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like
...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:

  • THANK YOU, THANK YOU, THANK YOU!! I've got my baby back. Tomorrow I will get a tank of high octane, remove the top, go for a long long ride and enjoy my car. THANK YOU! Jughead USA
< Previous | Next >
  • THANK YOU, THANK YOU, THANK YOU!! I've got my baby back. Tomorrow I will get a tank of high octane, remove the top, go for a long long ride and enjoy my car. THANK YOU! Jughead USA
  • 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
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex Los Angeles, CA
  • Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult. GP Hesperia, CA
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin Kernersville, NC
  • Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. Esther Woodstock, NY
  • Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know. Robin Elkton, Maryland

Meet The Experts:

  • lexpert


    Lexus Master tech

    Satisfied Customers:

    Master Certified with lexus, 8 years experience with Lexus
< Last | Next >
  • lexpert's Avatar


    Lexus Master tech

    Satisfied Customers:

    Master Certified with lexus, 8 years experience with Lexus
  • Skyvisions's Avatar


    ASE Certified Technician

    Satisfied Customers:

    Lexus Expert
  • Ron Z.'s Avatar

    Ron Z.

    - Lexus Tech -

    Satisfied Customers:

    18+yrs experience. State Inspector and Lexus Diagnostics
  • AMD's Avatar


    Master Technician

    Satisfied Customers:

    L1 Advanced Level Diagnostics Specialist
  • George H.'s Avatar

    George H.

    ASE Certified Technician

    Satisfied Customers:

    15+ years ASE Master w/L1 Drivability certification
  • Chris (aka - Moose)'s Avatar

    Chris (aka - Moose)


    Satisfied Customers:

    16 years of experience
  • Neal's Avatar



    Satisfied Customers:

    Shop owner experienced in most brands.