[msajidkhan]

I hope someone can help me here...

When I am backing up a car and make a sharp turn, I get a growling noise in the back? Is it normal or I need to worry about TM or RDM ?

Is there anyone on the forum who could tell me if all the recalls, repairs are done if I provide the VIN ?

Thank you so much in advance...

 

[msajidkhan]

Noise is exactly like this http://www.youtube.com/watch?v=rjuS5p-ZCHU&feature=youtu.be except it comes only when I am reversing the car...

 

[Nin ja]

Noise is exactly like this http://www.youtube.com/watch?v=rjuS5p-ZCHU&feature=youtu.be except it comes only when I am reversing the car...

i get that only when i back up. lormax looked at mine a few months back and did not think it was to abnormal, but going forward , that never happend on mine.

 

[msajidkhan]

Oh great.. how many miles you have so far on your car ?

 

[Nin ja]

I have about under 4000 miles

 

[smggsm]

lormax just Loctite one recently .. If im not mistaken this car think this car has same issue .. @Lormax
im wondering what the car mileage how bad were those splines:huh:
if the car left with OUT Loctite will it damage the RDM?
there is discussion somewhere .. but based on your finding on this car what you think?

 

[Lormax]

Based purely on what I know about the car being discussed in this thread, it's a very early VIN that possibly has soft spline motors. A spun motor can damage the RDM shaft as well, requiring replacement of the RDM and the motor (or both motors) sometimes. Sometimes only the motor needs replacement. Each situation can be different and I don't know for sure until I take it all apart and inspect.

I can say if the problem is taken care of before a motor spins out, the need to replace parts goes down drastically. In a case where the owner is doing it preventatively before anything catastrophic happens, usually it can be taken care of with just the labor alone. With a very low VIN on a car like this one, personally I'd still upgrade the motors. I understand that it can be costly though, so it may be worth the chance to just do the labor and see what happens. Either way, I warranty this job for a year so if the soft spline motors still fail within that time, I'll do the labor again for free.

I believe that picture is from Hawaii, I forgot about those pictures. Thanks for posting it!

 

[msajidkhan]

Lormax, how much it cost with labor to upgrade the motor ?

 

[smggsm]

Lormax
If it low vin 5xx and rdm was replaced with new updated one and I have this noise on few occasions .. Do you mean the motor might be damaged ?


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[marswill]

Lormax
If it low vin 5xx and rdm was replaced with new updated one and I have this noise on few occasions .. Do you mean the motor might be damaged ?


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I had the same noise you are describing and they changed my RDM. I'm VIN#1188. The new RDM then had to have the locktight rework done after it had already been installed. He was quite irritated that he didn't know about the locktight rework before he installed the new RDM as he then had to remove it to perform the rework.

 

[Lormax]

Lormax
If it low vin 5xx and rdm was replaced with new updated one and I have this noise on few occasions .. Do you mean the motor might be damaged ?


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If it's been updated, then who knows. There's no telling what serial # parts are in there without actually seeing them. At least it most likely has an updated RDM with the better clip (which can also fail).

This has been talked to death. I answer the same way, the jury is still out on whether or not that noise is going to cause long term damage. After seeing all the motors and RDM's that I've done, it's my belief that yes, it's going to cause damage.

 

[smggsm]

car has new (4 DIGITS serial #)RDM @ 2K MILE REPLACED by Silicon valley but never Loctite.. noise happen sometime on braking only at very low speed.. I can prevent it with harder stopping.

10k miles on the car now in your opinion is it to late to Loctite? the damage to RDM/MOTOR splines already done !!!

 

[doug]

noise happen sometime on braking only at very low speed.. I can prevent it with harder stopping.

The difference being regen braking versus friction braking, I'd suppose.

 

[smggsm]

The difference being regen braking versus friction braking, I'd suppose.

im talkig about this noise http://www.youtube.com/watch?v=rjuS5p-ZCHU&feature=youtu.be
some people suggest wil be fixed by software update its the motor keep spining on complete stop
im not sure what you refering to?

 

[doug]

You mentioned braking. On soft braking the motors are supplying a negative torque. (Harder braking adds the normal disc brakes.) I don't know if it's related to your problem.

 

[smggsm]

Oh I see your point .. Mostly happen on braking at slow speed yes ,, but It also when I pull to my garage at slow speed no braking ..my garage Is bit higher than the street

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[marswill]

Oh I see your point .. Mostly happen on braking at slow speed yes ,, but It also when I pull to my garage at slow speed no braking ..my garage Is bit higher than the street

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My Karma made a similar noise under the same conditions until I had the locktight mod done on the RDM. The RDM had already been replaced and has the green circles on the motors but the locktight mod had never been done on it. After the locktight mod was done the RDM has been almost silent for over a year now.

 

[smggsm]

thanks for sharing your car is good example may be will find the answer to what damage cause this issue if not locktight...
what the mileage on your car ? how bad damaged the splines when they took it a parts?
..my car has 10k miles now.. so the question to the experts out there since the car doing that from day one i can imagine the splines damaged by now ( i might be wrong) .. is it to late to locktight just wait till splines splines fail and replace RDM?

 

[marswill]

thanks for sharing your car is good example may be will find the answer to what damage cause this issue if not locktight...
what the mileage on your car ? how bad damaged the splines when they took it a parts?
..my car has 10k miles now.. so the question to the experts out there since the car doing that from day one i can imagine the splines damaged by now ( i might be wrong) .. is it to late to locktight just wait till splines splines fail and replace RDM?

They had already replaced my RDM but didn't locktight the new one. They had to remove the new RDM and locktight it to make it quite. The new RDM has the green circles on the motors so the motors should be the new type with the hardened splines. I had the work done about 10K miles ago with no problems since it was locktighted. My Karma just passed 20K miles last Monday.

 

[Lormax]

..my car has 10k miles now.. so the question to the experts out there since the car doing that from day one i can imagine the splines damaged by now ( i might be wrong) .. is it to late to locktight just wait till splines splines fail and replace RDM?

There's no way to tell if it's too late or not without taking it apart. If I went through all the work to do that, I may as well loctite it anyway and see what happens.