vibration only when accelerating from 60-70

Asked by Mar 27, 2013 at 12:26 AM about the 2003 Acura MDX AWD Touring

Question type: Maintenance & Repair

No steering wheel or transmission lever vibration, but vibration seems to come from body and floor area. It
does not give any clicking, grinding, or other noise when I am accelerating and in a tight turn, from start, low
speed or other wise.
one mechanic tells me he is certain it's the inner rigth wheel axle gear. I have clarified that it doesn't do anything
when turning, but he says it's lose when grab and shaken, and that's it.  
It may be loose, but it doesn't do anything when I am turning, so how can the vibration from 60-70 be from the
wheel axle.
I am worried that it's the propellar shaft.
What do you think?

12 Answers

Dynamic wheel balancing should solve your problem...find a shop that still does this.

If you're getting clicking or crunching I'd worry about the axles~

probably should replace the side that's gone wonky, they are less than a hundred dollars~

1 out of 1 people think this is helpful.
96,195

A mechanic can check out the U joints on the propeller shaft. They grab it by hand and apply some force to see if it moves at all. Take it to a different shop for a second opinion.

1 out of 1 people think this is helpful.

It' s helpful Tenspeed to remember that if the propellar shaft doesn't move, it ain't the shaft or gear mechanism. No u-joints on this model. But it seems dynamic balancing would only be a solution to spend money on if the vibration occurred both during acceleration AND during non-acceleration. Roy, do you think if it's out of balance, torque might actually reduce the amount of vibration? Do broken motor mounts yield a vibration symptom range that is only between 60-70? or wouldn't the vibration from broken motor mounts be a more widespread speed range?

unless it's vibration cancelling mount, no way, it is an active component setting up the resonation or riciprocation...gotta be movin' man~

I was just about to post "this couldn't possibly be a japanese car~" but alas, it is! they are sticklers with balance (even part of the culture) so an intrusive factor has made it's way into the puzzle...'mud in the tires' is a hilbilly way of sayin' the the rims got gank on them~ perhaps you should pull off each wheel and inspect for the clingons-

1 out of 1 people think this is helpful.

this has to be a simple puzzle, and we are trying to make it more complicated that it can be. Obviously, if your axle boots aren't torn, they won't be the source of the problem...NEVER and I mean never have I seen a axle make a noise let alone a resonation....do you know how fast it would have to be to "sing"...the axle alone, I mean....it's preposterous for the axle to be thumpin' and pumpin'....this is the arena of what makes ground contact~

1 out of 1 people think this is helpful.

dynamic balancing will TRY to set up resonations, then the computer will ask you to make an adjustment half or one gram lead weights attached to the rim...spin it again...and by the time you've complied with all the fussies, you've got an extra three ounces on the outside...I know I used to be that tire buddy who did this for a living!

somehow can't imagine that they still use LEAD for weights anymore, probably half the cars have this...an environmental concern? should see what they make balancing weights from these days...?

96,195

"It' s helpful Tenspeed to remember that if the propellar shaft doesn't move, it ain't the shaft or gear mechanism. No u-joints on this model" --- I'm thinking the propeller shaft is the same thing as the rear drive shaft from the transfer case to the rear axle differential. --- If that's true, it's spinning all the time. If you are accelerating, the VTM-4 AWD system in the MDX attempts to predict when traction will be lost and apply power to all four wheels before slippage occurs by monitoring throttle inputs. That would send power to all four wheels from 60-70. That should send power to the rear wheels whenever the same throttle input is used at lower speeds unless there is something else that prevents it.

I bet it is not your motor mounts, because if it was that it would vibrate some what all the time. I had a very similar issue, replacing the axel did it. Usually, you wan to do both sides at the same time to not trick your transmission. I replaced the axel and no more vibration at 50mph, under Torque. Good Luck !

Your Answer

Add photo

Related Questions

MDX

Looking for a Used MDX in your area?

CarGurus has 18,665 nationwide MDX listings starting at $1,500.

ZIP:

Search Acura MDX Questions

Acura MDX Experts

#1 RSBOregon
RSBOregon
Reputation 180
#2 jameskerje
jameskerje
Reputation 170
#3 krlok
krlok
Reputation 120
View All

Related Models For Sale

Used Honda Pilot
340 Great Deals out of 20,987 listings starting at $2,199
Used Toyota Highlander
348 Great Deals out of 25,757 listings starting at $2,900
Used BMW X5
442 Great Deals out of 16,638 listings starting at $2,000
Used Toyota 4Runner
266 Great Deals out of 20,826 listings starting at $1,995
Used Acura TL
245 Great Deals out of 6,949 listings starting at $2,000
Used Honda CR-V
807 Great Deals out of 59,586 listings starting at $900
Used Jeep Grand Cherokee
1,035 Great Deals out of 73,814 listings starting at $950
Used Ford Explorer
812 Great Deals out of 74,708 listings starting at $1,499
Used Honda Accord
781 Great Deals out of 87,677 listings starting at $1,250
Used Nissan Pathfinder
291 Great Deals out of 22,269 listings starting at $2,250
Used Chevrolet Tahoe
560 Great Deals out of 27,422 listings starting at $1,500

Used Cars For Sale

2017 Acura MDX For Sale
12 Great Deals out of 11,874 listings starting at $37,997
2016 Acura MDX For Sale
38 Great Deals out of 1,155 listings starting at $31,995
2015 Acura MDX For Sale
17 Great Deals out of 479 listings starting at $25,100
2014 Acura MDX For Sale
45 Great Deals out of 1,358 listings starting at $19,980
2013 Acura MDX For Sale
11 Great Deals out of 226 listings starting at $16,980