Please help diagnose "rumble strip" vibration under acceleration! No noise

WhiteBeard · 03-30-2016, 07:23 AM

Solved

frenchi · 03-30-2016, 08:22 AM

Don't remove the fuses you will have a very strange behavior because of all braking system error...just unplug the actuator motor of the transfer case...what you describe is most probably torque converter shudder.

WhiteBeard · 03-30-2016, 08:54 AM

Quote:

Originally Posted by frenchi

Don't remove the fuses you will have a very strange behavior because of all braking system error...just unplug the actuator motor of the transfer case...what you describe is most probably torque converter shudder.

Thank you! So do you think a proper fluid change with filter will solve the problem? It's only 37K miles, but car is 2007, it was sitting for 3 years in garage unfortunately without driving.

frenchi · 03-30-2016, 09:03 AM

3 years without driving if it's mine i will do it for sure and add this to your fluid http://www.lubegard.com/~/C-230/Instant+Shudder+Fixx

WhiteBeard · 03-30-2016, 09:05 AM

Quote:

Originally Posted by frenchi

3 years without driving if it's mine i will do it for sure and add this to your fluid http://www.lubegard.com/~/C-230/Instant+Shudder+Fixx

Thank you again! I'll do it then. Just one more question - should there be any codes for Torque Converter shudder - because with my Carly tool I can't see any yet? Thank you

frenchi · 03-30-2016, 09:16 AM

No slipping torque converter doesnt send ecu errors...it's just a mechanical clutches problem

WhiteBeard · 03-30-2016, 10:25 AM

Another silly question - how to find out if I have a GM or ZF transmission? Any visible differences easy to check or just by VIN code? Thank you

P.S. I'm trying to order filter, gasket and fluid.

igzekyativ · 03-30-2016, 12:04 PM

Quote:

Originally Posted by WhiteBeard

Another silly question - how to find out if I have a GM or ZF transmission? Any visible differences easy to check or just by VIN code? Thank you

P.S. I'm trying to order filter, gasket and fluid.

my tech said NOT to change the filter and gasket, only the fluid

please look at my thread (specifically the SIB and flow-chart i posted)... seems to be a problem with the GM transmissions in our cars... I am going to do a transmission fluid change tonight, and see if my issue gets resolved. if not, i'll add the friction modifier to the fluid and see what happens. if that doesn't work, either a new torque converter or transmission.

http://www.e90post.com/forums/showthread.php?t=1201992

WhiteBeard · 03-30-2016, 01:29 PM

Quote:

Originally Posted by igzekyativ

my tech said NOT to change the filter and gasket, only the fluid

please look at my thread (specifically the SIB and flow-chart i posted)... seems to be a problem with the GM transmissions in our cars... I am going to do a transmission fluid change tonight, and see if my issue gets resolved. if not, i'll add the friction modifier to the fluid and see what happens. if that doesn't work, either a new torque converter or transmission.

http://www.e90post.com/forums/showthread.php?t=1201992

Oh, ok then! So just fluid change? Please keep us posted if that will solve the issue.

P.S. did tech explained reasoning why not touch filter and gasket? Just curious. Thanks

igzekyativ · 03-30-2016, 03:09 PM

Quote:

Originally Posted by WhiteBeard

Oh, ok then! So just fluid change? Please keep us posted if that will solve the issue.

P.S. did tech explained reasoning why not touch filter and gasket? Just curious. Thanks

no, the service advisor did not state why the tech said that... presumably, if it's not broke, don't fix it mentality? maybe too much of a shock to the transmission if I change it all?

i will certainly post on my thread the results of the fluid change, so check back there.

matteblue3er · 03-30-2016, 04:21 PM

When my front passenger CV joint failed, I got vibration under load.

I pulled the xDrive/DSC fuse (20 or 26) and the vibration went away.

The car drove normally, I just had no safety systems, no road speed, etc.

I highly doubt changing fluid will help.

Btw, do not cheap out on aftermarket axles. We put them in all the time and they always fail within miles.....

The shafts themselves are normally ok, but the boots fail.

WhiteBeard · 03-30-2016, 04:33 PM

Quote:

Originally Posted by matteblue3er

When my front passenger CV joint failed, I got vibration under load.

I pulled the xDrive/DSC fuse (20 or 26) and the vibration went away.

The car drove normally, I just had no safety systems, no road speed, etc.

I highly doubt changing fluid will help.

Btw, do not cheap out on aftermarket axles. We put them in all the time and they always fail within miles.....

The shafts themselves are normally ok, but the boots fail.

Was that vibration constant under load or only for 1-2 sec?

matteblue3er · 03-31-2016, 03:41 PM

Quote:

Originally Posted by WhiteBeard

Was that vibration constant under load or only for 1-2 sec?

At first, it was only first few seconds of accelerating.

As it got worse, it would vibrate any time I was applying throttle until I reached cruising speeds. As soon as I added load, it would vibrate. It got to the point where I thought my car was going to fall apart. When I pulled the axle, the bearings just dropped to the floor.

Dylan · 04-01-2016, 01:00 PM

Quote:

Originally Posted by matteblue3er

At first, it was only first few seconds of accelerating.

As it got worse, it would vibrate any time I was applying throttle until I reached cruising speeds. As soon as I added load, it would vibrate. It got to the point where I thought my car was going to fall apart. When I pulled the axle, the bearings just dropped to the floor.

Check your control arm bushings, i had a similar issue. Found out my lower control arms had no bushings at all 78k miles in.

matteblue3er · 04-01-2016, 01:28 PM

Quote:

Originally Posted by Dylan

Check your control arm bushings, i had a similar issue. Found out my lower control arms had no bushings at all 78k miles in.

My control arm bushings are fine. I replaced them with poly awhile back. The issue was a bad CV joint.

My issue has already been solved.

fiftyclick · 04-09-2016, 06:25 AM

Not sure if you got this fixed yet, but I had the same issue and turned out to be a bad oil cap which was causing air to mix in with the oil. Didn't happen all the time, but definitely made the car behave erratically.

That being said, my water pump just went as well, and leading up to the failure I noticed that throttle response in general seemed to be off for the last two weeks leading up to the car totally overheating and going into limp mode.

Prelin · 01-31-2022, 11:08 AM

Hi WhiteBeard , did the fluid-only change solve the issue?

e90yyc · 02-28-2022, 04:10 PM

The way OP edited this post has got to be the stupidest thing I’ve seen here in a while. (I know it’s from 2016.)

How the hell someone could think that removing your description of the issue you’ve since solved and replacing it with SOLVED does anything for posterity is beyond me.

I’m sure it wasn’t done with ill intent, but LOL…

03-30-2016, 07:23 AM	#1
WhiteBeard Lieutenant 151 Rep 545 Posts Drives: slowly Join Date: Feb 2016 Location: Jacksonville iTrader: (0)	Please help diagnose "rumble strip" vibration under acceleration! No noise Solved Last edited by WhiteBeard; 05-01-2017 at 12:52 AM..
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03-30-2016, 08:22 AM	#2
frenchi Lieutenant 89 Rep 452 Posts Drives: F30 340i M Performance Join Date: Nov 2008 Location: France iTrader: (11)	Don't remove the fuses you will have a very strange behavior because of all braking system error...just unplug the actuator motor of the transfer case...what you describe is most probably torque converter shudder.
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03-30-2016, 09:03 AM	#4
frenchi Lieutenant 89 Rep 452 Posts Drives: F30 340i M Performance Join Date: Nov 2008 Location: France iTrader: (11)	3 years without driving if it's mine i will do it for sure and add this to your fluid http://www.lubegard.com/~/C-230/Instant+Shudder+Fixx
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03-30-2016, 09:16 AM	#6
frenchi Lieutenant 89 Rep 452 Posts Drives: F30 340i M Performance Join Date: Nov 2008 Location: France iTrader: (11)	No slipping torque converter doesnt send ecu errors...it's just a mechanical clutches problem
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03-30-2016, 10:25 AM	#7
WhiteBeard Lieutenant 151 Rep 545 Posts Drives: slowly Join Date: Feb 2016 Location: Jacksonville iTrader: (0)	Another silly question - how to find out if I have a GM or ZF transmission? Any visible differences easy to check or just by VIN code? Thank you P.S. I'm trying to order filter, gasket and fluid.
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03-30-2016, 04:21 PM	#11
matteblue3er Captain 238 Rep 947 Posts Drives: Racecar Join Date: Jul 2015 Location: Philly iTrader: (0)	When my front passenger CV joint failed, I got vibration under load. I pulled the xDrive/DSC fuse (20 or 26) and the vibration went away. The car drove normally, I just had no safety systems, no road speed, etc. I highly doubt changing fluid will help. Btw, do not cheap out on aftermarket axles. We put them in all the time and they always fail within miles..... The shafts themselves are normally ok, but the boots fail.
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04-09-2016, 06:25 AM	#16
fiftyclick Registered 2 Rep 4 Posts Drives: BMW e92 335xi Join Date: Mar 2016 Location: Canada, ON iTrader: (0)	Not sure if you got this fixed yet, but I had the same issue and turned out to be a bad oil cap which was causing air to mix in with the oil. Didn't happen all the time, but definitely made the car behave erratically. That being said, my water pump just went as well, and leading up to the failure I noticed that throttle response in general seemed to be off for the last two weeks leading up to the car totally overheating and going into limp mode.
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01-31-2022, 11:08 AM	#17
Prelin Registered 0 Rep 3 Posts Drives: E92, 335i. F82, M4 Join Date: Jan 2022 Location: Johannesburg iTrader: (0)	Hi WhiteBeard , did the fluid-only change solve the issue? Last edited by Prelin; 01-31-2022 at 11:09 AM.. Reason: Wrong tag
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02-28-2022, 04:10 PM	#18
e90yyc Art Collector 2425 Rep 3,448 Posts Drives: 2007 328xi (GM-delete 6MT) Join Date: Feb 2018 Location: Canada iTrader: (0)	The way OP edited this post has got to be the stupidest thing I’ve seen here in a while. (I know it’s from 2016.) How the hell someone could think that removing your description of the issue you’ve since solved and replacing it with SOLVED does anything for posterity is beyond me. I’m sure it wasn’t done with ill intent, but LOL… __________________ When I'm dead, just throw me in the trash.
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