D4D vibration at 1500rpm

[relja56 Lurker Find all posts View Profile Close relja56]

Re: D4D vibration at 1500rpm

Would just like to report that I followed Sigmas instructions, have driven 400 ks since and no annoying rattle at 1500 rpm.
Thanks Sigma for the easy to follow instructions.

Happy New Year to all.

John

Hi John,
what you mean "Sigma instruction"?
Where can we read the instructions?
I have driven 10,000 ks and beeen three times by Toyota since 20 October. Every time they say "Problem solved".
But after a few days, vibrations comes back.
Is there any legal way to solve the problem?
Can we write some petition (need to be signed, probably, by at least a thousand of people) to Toyota to solve the problem?

Happy New Year,
Relja

[Edna Lurker Find all posts View Profile Close Edna]

Re: D4D vibration at 1500rpm

Relja,

About 15 posts previously.

John

[relja56 Lurker Find all posts View Profile Close relja56]

Re: D4D vibration at 1500rpm

Relja,

About 15 posts previously.

John

Thanks John,
I have service tomorow and will print the Sigma instractions to show Toyota people.
Will let you know what is the outcome.

Regards,
Relja

[arbsan Lurker Find all posts View Profile Close arbsan]

Re: D4D vibration at 1500rpm

I have had my vehicle back to the dealer 3 times now. It is always better for a few weeks but after driving on rough roads slowly returns. I'am fast loosing respect for the brand that I have been faithful to for many years.

[jpmoonta Lurker Find all posts View Profile Close jpmoonta]

Re: D4D vibration at 1500rpm

Since my dealer fixed the 1500RPM dash vibration, the car cas bad vibrations under load & around 2000RPM. Felt through the floor, accelerator pedal & steering wheel. My feet now feel like pins & needles on any trip. I don't like driving this car.
I am not aware of other people with this complaint. Does anybody feel the same way about there 150 ?
JP

[KJA Member Find all posts View Profile Close KJA]

Re: D4D vibration at 1500rpm

I have followed this thread with interest and noted the vibration. I especially disliked the hum you get with the vibration which I believe was the air in the airintake (the air moving through the tube sets up a harmonic vibration creating a low note - drone or humming sound) going to the air filter. Also the vibration in the dash area. As indicated in a previous post the snorkel was a suggestion to rectify. Yesterday I had a safari snorkel installed and have now driven 200km at various speeds but with a long stint at 80 Kph or 1500rpm in 5th. There is still a vibration in the motor as I can feel it through the accelerator however no dash noise or vibration and no dreaded drone. A huge improvement and well worth the install. Also I am going to monitor the fuel consumption as I believe it could have improved slightly. maybe 0.5l/100Km. Hope this provides some interest
Ken

[Riv39 Advanced Member Find all posts View Profile Close Riv39]

Re: D4D vibration at 1500rpm

I have followed this thread with interest and noted the vibration. I especially disliked the hum you get with the vibration which I believe was the air in the airintake (the air moving through the tube sets up a harmonic vibration creating a low note - drone or humming sound) going to the air filter. Also the vibration in the dash area. As indicated in a previous post the snorkel was a suggestion to rectify. Yesterday I had a safari snorkel installed and have now driven 200km at various speeds but with a long stint at 80 Kph or 1500rpm in 5th. There is still a vibration in the motor as I can feel it through the accelerator however no dash noise or vibration and no dreaded drone. A huge improvement and well worth the install. Also I am going to monitor the fuel consumption as I believe it could have improved slightly. maybe 0.5l/100Km. Hope this provides some interest
Ken

Ken
As discussed previously, the consensus is that the vibration is primarily due to engine lugging. I reckon it is much better if you drive in S mode as the engine tends to lug much less and is a lot more resposive. Some believe the update to the tranny software also helps, my dealer states that they unaware of any update.....go figure.

[KJA Member Find all posts View Profile Close KJA]

Re: D4D vibration at 1500rpm

Riv39,
I have driven over 1000km. Believe that the snorkel is the ticky boo but also agree that the S mode gives that dreaded noise the flick and also recifies any issues with the turbo lag when going through roundabouts. It was expalined to me that if you approach the roundabout in "D" and slow down to go through it them the computer believes you are stopping and so stops the turbo and when you hit the pedal on the other side then it lurches into action. Don't know about the reasoning???? I have also read on this forum that the "S" mode can give you better economy!!!. However I am in love with the snorkel and am just glad I don't have that dreaded drumming sound anymore!!!
Ken

[arbsan Lurker Find all posts View Profile Close arbsan]

Re: D4D vibration at 1500rpm

Just had my vehicle back for another attempt to rectify this rattle....Service manager was very helpful and much better to deal with than the counter staff. Long story short it seems that this time may have stopped the rattle. I'm told this time a tab was trimmed just below the windscreen.
As a long term toyota driver I was bitterly dissapointed with Toyota customer service 1800 staff (do not return calls and denied knowledge of the rattle)
Other than this rattle I'am 100% satisfied with the Prado but expect better customer service when I pay a price premium to purchase a toyota.
I'am also very thankful that I found this website/forum that gave me so much information on the fault to take to Toyota. THANK-YOU to all who have posted so much info

[brycii Lurker Find all posts View Profile Close brycii]

Re: D4D vibration at 1500rpm

Toyota fixed the 1500rpm rattle at the 10,000km service by packing guard with foam and putting some weights up in the guard somewhere. Now it does it at 1300rpm instead but not as badly and it seems to spend far less time at 1300 than it did at 1500rpm. A lot better now but not cured.

[Pradodiesel Junior Member Find all posts View Profile Close Pradodiesel]

Re: D4D vibration at 1500rpm

Trust me on the following
Going back to Toyota will not fix your vibration.
The problem is a design fault in how the air induction to air cleaner passes through the guard.

You can easily solve the issue for around 600 bucks by fitting a snorkel. Problem solved.
You wont have some apprentice packing foam into your car to mask an issue that wont go away.

As for flat spots etc. DP chip will solve that issue.
And yes before you say no warranty etc i know Toyota wont be happy but thats bad luck for them.
DP chip will cover your warranty etc and go into battle with Toyota if needed.

You should not need to spend money to fix design faults but thats just the way it is.
After these issues are fixed you forget about the coin you just spent because finally you will be happy with the car.

Do yourself a favour and get it sorted yourself. Otherwise you could be waiting along time to finally being happy with your 4WD

cheers and good luck

[noisey Lurker Find all posts View Profile Close noisey]

Re: D4D vibration at 1500rpm

Hi, We are just trying to let people know about our situation and we would be reasonabley happy if they could fix the drumming or resonance which seems to be our worst problem. We do not think it sounds like a rattle from a headlight. Toyota says it is an induction box problem.

[noisey Lurker Find all posts View Profile Close noisey]

Re: D4D vibration at 1500rpm

Hi We would like to know how you can get Toyota Australia to take some notice and do some repairs to these vehicles.Most dealers are very helpful in our dealings with them .

[Matty80 Avid PP Poster! Find all posts View Profile Close Matty80]

Re: D4D vibration at 1500rpm

Hi, We are just trying to let people know about our situation and we would be reasonabley happy if they could fix the drumming or resonance which seems to be our worst problem. We do not think it sounds like a rattle from a headlight. Toyota says it is an induction box problem.

From what I have read in this section, it seems to be an induction problem - around the front guard area into the air filter box, as a few member have said and also conferred by what you say toyota said.

Hi We would like to know how you can get Toyota Australia to take some notice and do some repairs to these vehicles.Most dealers are very helpful in our dealings with them .

Toyota would have to acknowledge it as an issue before they will fix anything, for that there needs to be adequate feedback from owners and probably more likely actual failures because of said resonance. Which I'm not sure there has been? And would certainly be extremely costly for what some would simply put down to the joy of driving a hearty diesel.

More times than not it seems to be solved with the fitment of a snorkel anyway - wheres the issue?

[krypto Avid PP Poster! Find all posts View Profile Close krypto]

Re: D4D vibration at 1500rpm

Given that the "lugging/labouring" vibration goes away if you take your foot off the accelerator means that it is just the engine working hard along with associated induction etc. While it is not ideal I doubt that there is an easy fix and as others have said it is part of owning a low revving diesel engine.

Best solutions are not to let the engine labour under load. Anything that shifts the power/torque characteristics should also have an effect. I'm surprised that a snorkel fixes the problem, I would have thought a power chip or exhaust change might have had a greater effect. In any case I wouldn't hold my breath waiting for Toyota to address this.