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  • I put this comment in the 150General posts back in November..."Been meaning to provide this comment for a while. Have a February 2012 diesel Altitude. After reading pradopoint, I've had the tail shaft replaced, no more clunking and ecu flash upgrade, no more surge. Prior to ecu upgrade, had noticed intermittently the 1500 rpm noise as described on Pradopoint. Have had ecu upgrade for about 8 weeks now and have noticed no more 1500 rpm drone. Have driven deliberately at 1500 rpm to try & make it happen but does not occur. Maybe just coincidence, but ecu upgrade really does seem to have fixed this problem. Suggest others try this before attempting expensive mechanical/ structural fixes."...

    The ECU upgrade really does seem to have fixed the drone problem that I was getting intermittently on my Prado. suggest others consider as a possible fix. driving in D around town now like driving in the old S4 setting which others suggest stopped the 1500 rpm drone problem.
    2012 Crystal Pearl Prado Altitude 150 Diesel Auto. Toyota mats and rear rubber mat. Toyo Open Country AT2's 265 65 R17 LT. OEM nudge bar. dual battery set up with Optima D34, rear power points front and rear Anderson plugs. Lightforce LED combi light bar. Kingsley side steps. Outback Ideas recovery points. Dr Air Pro 150 ltr air compressor. ARB 60 ltr fridge. GME 3550s UHF radio. Hema HX1.

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    • Greetings :- First post, so apologies for anything already covered. My GXL is heading into it's 8th year now and I noticed this rattle at about 30,000Ks which seems quite late compared to a lot of others. I believe it has been discussed in great depth in either this or other threads and there's even been photographs posted as to how to dampen the rattle or eliminate the possible causes "some of these looked to be quite in depth fixes too". As a young fella I studied a course during my engineering on a thing called wave harmonics which was all about vibrations "in a nutshell", so I set about trying to resolve the problem. As you mention "assuming your Prado" has exactly the same problem as mine, the problem does indeed come from where the air intake inlet comes through the RH wing guard where it rattles quite bad. The problem appears to be greatly intensified due to the fact that the inner wing area acts as a "drum" which increases the noise output of the resonance therefore making the noise appear much worse than it is, it doesn't help either that it's right at the drivers side where it gets the most attention. The reason that everyone experiences this at roughly the same RPM is due to the fact that everything has a unique frequency at which it "Resonates" or rattles and it's at the 1300 to 1500 RPM band that this rattle kicks in.
      In order to resolve the problem I had, I removed the air intake filter housing and pulled the inlet pipe a couple of mm through the wing and placed a bead of Black Silicone sealant around the inlet which acts as a dampener & prevents the hard plastic intake pipe from touching the inner wing therefore removing the rattle contact point. I replaced the filter housing and filter and low and behold 50,000Ks later the vibration is still gone. Obviously where the intake pipe comes through the wing things need to be fairly sealed air tight, so warm air isn't pulled into the intake out of the engine compartment. Hope this helps you Sozjot but this has definitely worked for me.

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      • Well this weekend had been driving a six month old d4d auto 9k km from a relative around 1000km highway and some hills, wow what a noisy and rough engine, seems lugging all time, of course have more torque than my 2.7 petrol, but doesnt feel a lot more. Maybe is the tall final gear ratio and the transmission upshifting too early. I recommend them to ask the dealer about the rattle fix. Now, after this experience I really appreciate this little 2.7 engine.
        madmax1982
        Junior Member
        Last edited by madmax1982; 16-02-2015, 12:58 PM.

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        • i had the dreaded 1500 rpm vibration hence my user name.

          fitted a safari snorkel to the 150 and she's smooth as now i can't even try to make it do the vibe now

          I'm very happy.

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          • No 1 - fix

            Have you got a photo of how they fixed this vibration through the windscreen

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            • Originally posted by shonky 150 View Post
              i had the dreaded 1500 rpm vibration hence my user name.

              fitted a safari snorkel to the 150 and she's smooth as now i can't even try to make it do the vibe now

              I'm very happy.
              Would any snorkel get rid of the drone? I like the airtec ones better than the Safari one.

              Comment


              • Vibration Noise 2015 Prado VX Not Happy

                I am Not sure if this is a common noise but I am not happy with my new Prado VX. I bought it 2 months ago now brand new and love the car but the vibration/engine noise I get when driving between 80ksto 90ks is annoying. It is worse when slightly under load i.e driving slightly up hill the revs are approx 1500. If I switch into manual the revs go up and the noise disappears. I have had it back the the Dealership and they say there is nothing wrong and is a common noise with the diesel Prado. Is this just me or is it a common problem or am I to critical?

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                • Its a common problem unfortunately, there are a few threads here on the forum that discuss it.

                  My noise was dramatically reduced when i removed the rear muffler and replaced it with a more free flowing one.

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                  • 1500 drone -gone

                    Hi all, I have been following this thread and decided to bite the bullet and get dynamat fitted to the drivers side wheel well. It was done at Newcastle Pro Sound - they are audio specialists and very accommodating, as I did not have the qualifications or patience to do it myself. I must say on first indications, driving in traffic and not above 70 kmh the vehicle has quietened up a bit and you have to check the TACO to see what revs you are at. I will wait until I drive on the 80 km speed limit to see if this has solved the common complaint. But for now I can tell the difference. For a price of $100 fitted and $14 for 7 replacement clips I think this is a cheap option other than fitting a snorkel or wasting time on Toyota service department pretending they do not know it is a problem. (after talking to three service personnel, they said it could be the airbox, or bring it in as all rattles are different) So after little or no confidence I tried this approach and it seems to have worked. Happy for questions or feedback, it does sound a much nicer vehicle. I will provide more feedback once I get use to it. Cheers
                    gavinvbrf9
                    Lurker
                    Last edited by gavinvbrf9; 25-07-2015, 07:34 PM. Reason: Pass my findings on

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                    • Vibration Update

                      Hi All, After fitting dynamat (previous post) in the drivers side wheel arch I must say the the engine is much quieter at all speeds,70, 80, 100. I did have a very small vibration in the dash exactly at 1500 rpm low speed. Only noticed it cause the motor is so much quieter. It was not overpowering, turning the stereo up slightly hides it. There is no drone at all speeds and revs. I am still curious what fix 1 was in a previous post. Very happy with such a simple cheap fix.

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                      • Fix no.1 only fixes one of the rattles caused by the vibration/resonance
                        Fix no.2 sounds dodgy, and still won't change the resonance of the intake chamber. The reason for this is that they are not changing the characteristics of the air intake chamber, the space under the mudguard. At best they are removing a source of rattles caused by the vibration.
                        Fix no.3 fixes the vibration/resonance, as does fitting a snorkel. This is because both these fixes change the characteristics of the air intake chamber which changes the resonant frequency.


                        Hi Krypto, have you got photos of fix 1 - plastic tab they removed
                        gavinvbrf9
                        Lurker
                        Last edited by gavinvbrf9; 27-07-2015, 07:04 PM.

                        Comment


                        • Originally posted by gavinvbrf9 View Post
                          Fix no.1 only fixes one of the rattles caused by the vibration/resonance
                          Fix no.2 sounds dodgy, and still won't change the resonance of the intake chamber. The reason for this is that they are not changing the characteristics of the air intake chamber, the space under the mudguard. At best they are removing a source of rattles caused by the vibration.
                          Fix no.3 fixes the vibration/resonance, as does fitting a snorkel. This is because both these fixes change the characteristics of the air intake chamber which changes the resonant frequency.


                          Hi Krypto, have you got photos of fix 1 - plastic tab they removed
                          Sorry but unfortunately no, it's that long ago that I can't remember where it was.
                          [B]Steve[/B]

                          2010 Silver GXL Prado 150, D4D Auto, with a few non standard bits

                          Comment


                          • Originally posted by krypto View Post
                            Sorry but unfortunately no, it's that long ago that I can't remember where it was.
                            Thanks for replying. it might jog somebody else's memory. cheers

                            Comment


                            • Update on Prado Vibration, Poor Toyota Resonse

                              As with an earlier post, my new Prado came with a deep resinating noise/ vibration. The Dealership could not help me so I contacted the Customer Care Line. They were very helpful and organised the service section to re look at my car did a few modifications to the air intake but guess what, made no difference. The Customer care line contacted me again yesterday to ask if the problem was solved which I informed them No. Their response was " well that as much as we can do for you. If we find a solution for you in the future we will let you know".
                              What a cop out Toyota. After 10 brand new Toyotas' over the last 30yrs this is the answer. VERY POOR. I am really unhappy with my new car due to this noise. Toyota is aware of these continuous complaints but have decided its too hard to solve the problem. Would I recommend them to anyone in the future, Definitely Not.

                              Comment


                              • Originally posted by Harfir View Post
                                As with an earlier post, my new Prado came with a deep resinating noise/ vibration. The Dealership could not help me so I contacted the Customer Care Line. They were very helpful and organised the service section to re look at my car did a few modifications to the air intake but guess what, made no difference. The Customer care line contacted me again yesterday to ask if the problem was solved which I informed them No. Their response was " well that as much as we can do for you. If we find a solution for you in the future we will let you know".
                                What a cop out Toyota. After 10 brand new Toyotas' over the last 30yrs this is the answer. VERY POOR. I am really unhappy with my new car due to this noise. Toyota is aware of these continuous complaints but have decided its too hard to solve the problem. Would I recommend them to anyone in the future, Definitely Not.
                                There are solutions on here to resolve that issue, if your that unhappy with it - sell it. Not trying to be rude, I just assume you did your research on everything Prado - like visiting this site and learning as much as possible before making a final buying decision? God knows I did before I upgraded from my 120 to the 150. The first mod I did was the snorkel, even if I never cross a river there were more positives like cooler air into the intake.
                                Last edited by chimma; 31-07-2015, 12:03 AM. Reason: spelling boo boo
                                2013 MY14 VX Prado TD, Bullbar, Airtec Snorkel, Uniden UH8080NB, Tyredog TPMS 1400AX, ScangaugeII, Interior LEDs, Creed 9' LED Spotties.

                                Don't look at me, I'm Gen X, we are stuck in the middle of all this....

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