High pitched whine after tranny fluid swap

a_riddler · 09-28-2010, 04:54 PM

I recently swapped out the tranny fluid and put in Royal Purple Synchromax. Since then, I've noticed a high pitch whine that's tied to the throttle coming from the tranny. I was concerned about a possible leak or lack of fluid, but the seals are good (new drain plug) and the left over fluid jives with the tranny capacity. No codes. Performance is fine, shifting is fine.

Should this be expected or should I turn it over to a pro for a look?

inTgr8r · 09-28-2010, 05:02 PM

Very strange, I experienced nothing like that at all.

O-cha · 09-28-2010, 05:06 PM

Are you sure you put in the correct viscosity?

a_riddler · 09-28-2010, 09:09 PM

O-cha,
I had assumed so, since there is only one version of the Synchromax. The Synchromax equates to the MTFLT1, and I saw that the Z4M's use MTFLT2. That is roughly a 75W85 SAE Grade, so yeah, maybe its the viscosity. I read favorable reviews of Synchromax in the Z4M, perhaps I should try the Max-Gear 75W90.

Here is the specs.

O-cha · 09-28-2010, 09:26 PM

Um.... that looks like the viscosity of 30 weight oil....

a_riddler · 09-28-2010, 10:40 PM

While I don't disagree, people have been using this in the Z4M successfully. I'd be willing to put in Red Line MT-90 to see if there is a difference.

FerRrari · 09-28-2010, 11:09 PM

Quote:

Originally Posted by a_riddler

I recently swapped out the tranny fluid and put in Royal Purple Synchromax. Since then, I've noticed a high pitch whine that's tied to the throttle coming from the tranny. I was concerned about a possible leak or lack of fluid, but the seals are good (new drain plug) and the left over fluid jives with the tranny capacity. No codes. Performance is fine, shifting is fine.

Should this be expected or should I turn it over to a pro for a look?

I'd have someone else look at it. I experienced a whining noise on acceleration in 3rd gear in my MINI after a clutch replacement, didn't make much of it, long story short, total transmission failure occurred whithin a week.

O-cha · 09-28-2010, 11:42 PM

Quote:

Originally Posted by FerRrari

I'd have someone else look at it. I experienced a whining noise on acceleration in 3rd gear in my MINI after a clutch replacement, didn't make much of it, long story short, total transmission failure occurred whithin a week.

Whine is bad for sure, any way you look at it. It's a sign of friction and/or collision.

a_riddler · 09-29-2010, 10:23 AM

Didn't need much convincing, off to the shop. Thanks everyone!

inTgr8r · 09-29-2010, 10:37 AM

keep us posted.

RBull · 09-29-2010, 05:20 PM

No issue here and I just swapped out a week ago. Let us know what happens.

r4gs · 09-29-2010, 05:40 PM

hmm, interesting anomaly. i opted not to switch to rp synchromax even though i had two bottles shipped from amazon because i'd been intentionally working on my shifting technique. plus i'm only sitting pretty on 17500 miles.

a_riddler · 09-30-2010, 11:32 AM

And the verdict is....

Power steering pump

It just happened after the fluid swap. Poor timing. I had noticed that the steering was rough, but attributed that to the increased negative camber from the TMS bolts.

Lesson learned. Only do one thing at a time when the car is up on the jack stands...

007MCoupe · 09-30-2010, 12:09 PM

Glad to hear it's not a tranny swap!

inTgr8r · 09-30-2010, 12:40 PM

Sorry about your PS pump, but the rest is good news.

Erhan · 10-01-2010, 12:11 AM

You should have left it as is since it is not the tranny

It was sounding really good

09-28-2010, 04:54 PM	#1
a_riddler Bimmer Noob 30 Rep 566 Posts Drives: 08 Z4MC;08 MBZ E350 4Matic Join Date: May 2010 Location: Seattle, WA iTrader: (6)	High pitched whine after tranny fluid swap I recently swapped out the tranny fluid and put in Royal Purple Synchromax. Since then, I've noticed a high pitch whine that's tied to the throttle coming from the tranny. I was concerned about a possible leak or lack of fluid, but the seals are good (new drain plug) and the left over fluid jives with the tranny capacity. No codes. Performance is fine, shifting is fine. Should this be expected or should I turn it over to a pro for a look? __________________ 08 Z4MC /// DKF Exhaust, Stoptech 6/4 BBK, TCK Coilovers, Strong-Strut, Apex EC-7's, APR Splitter/Wing, AFE Intake, Underdrive pulleys, AS SSK, Jaffster, UUC Tranny Mounts, Matte Grill, RPI Scoop, CF Badges
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09-28-2010, 05:02 PM	#2
inTgr8r Lieutenant General 2426 Rep 11,667 Posts Drives: M2 Comp Join Date: Mar 2006 Location: Toronto iTrader: (10)	Very strange, I experienced nothing like that at all. __________________ '21 M2C Hockenheim Silver '18 718 Cayman S Lava Orange (sold) '13 E92 M3 Santorini Blue (sold) '07 Z4 M Coupe Alpine White (sold)
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09-28-2010, 05:06 PM	#3
O-cha Brigadier General 218 Rep 4,726 Posts Drives: Mcoupe Join Date: Oct 2007 Location: In front of you iTrader: (2)	Are you sure you put in the correct viscosity? __________________
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09-28-2010, 09:09 PM	#4
a_riddler Bimmer Noob 30 Rep 566 Posts Drives: 08 Z4MC;08 MBZ E350 4Matic Join Date: May 2010 Location: Seattle, WA iTrader: (6)	O-cha, I had assumed so, since there is only one version of the Synchromax. The Synchromax equates to the MTFLT1, and I saw that the Z4M's use MTFLT2. That is roughly a 75W85 SAE Grade, so yeah, maybe its the viscosity. I read favorable reviews of Synchromax in the Z4M, perhaps I should try the Max-Gear 75W90. Here is the specs. Attached Images __________________ 08 Z4MC /// DKF Exhaust, Stoptech 6/4 BBK, TCK Coilovers, Strong-Strut, Apex EC-7's, APR Splitter/Wing, AFE Intake, Underdrive pulleys, AS SSK, Jaffster, UUC Tranny Mounts, Matte Grill, RPI Scoop, CF Badges
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09-28-2010, 09:26 PM	#5
O-cha Brigadier General 218 Rep 4,726 Posts Drives: Mcoupe Join Date: Oct 2007 Location: In front of you iTrader: (2)	Um.... that looks like the viscosity of 30 weight oil.... __________________
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09-28-2010, 10:40 PM	#6
a_riddler Bimmer Noob 30 Rep 566 Posts Drives: 08 Z4MC;08 MBZ E350 4Matic Join Date: May 2010 Location: Seattle, WA iTrader: (6)	While I don't disagree, people have been using this in the Z4M successfully. I'd be willing to put in Red Line MT-90 to see if there is a difference. __________________ 08 Z4MC /// DKF Exhaust, Stoptech 6/4 BBK, TCK Coilovers, Strong-Strut, Apex EC-7's, APR Splitter/Wing, AFE Intake, Underdrive pulleys, AS SSK, Jaffster, UUC Tranny Mounts, Matte Grill, RPI Scoop, CF Badges
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09-29-2010, 10:23 AM	#9
a_riddler Bimmer Noob 30 Rep 566 Posts Drives: 08 Z4MC;08 MBZ E350 4Matic Join Date: May 2010 Location: Seattle, WA iTrader: (6)	Didn't need much convincing, off to the shop. Thanks everyone! __________________ 08 Z4MC /// DKF Exhaust, Stoptech 6/4 BBK, TCK Coilovers, Strong-Strut, Apex EC-7's, APR Splitter/Wing, AFE Intake, Underdrive pulleys, AS SSK, Jaffster, UUC Tranny Mounts, Matte Grill, RPI Scoop, CF Badges
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09-29-2010, 10:37 AM	#10
inTgr8r Lieutenant General 2426 Rep 11,667 Posts Drives: M2 Comp Join Date: Mar 2006 Location: Toronto iTrader: (10)	keep us posted. __________________ '21 M2C Hockenheim Silver '18 718 Cayman S Lava Orange (sold) '13 E92 M3 Santorini Blue (sold) '07 Z4 M Coupe Alpine White (sold)
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09-29-2010, 05:20 PM	#11
RBull Captain 12 Rep 725 Posts Drives: 2007 M Coupe Join Date: Apr 2010 Location: Nova Scotia iTrader: (0)	No issue here and I just swapped out a week ago. Let us know what happens.
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09-29-2010, 05:40 PM	#12
r4gs Viper Driver 36 Rep 1,311 Posts Drives: F-16 Join Date: Aug 2010 Location: Singapore iTrader: (2)	hmm, interesting anomaly. i opted not to switch to rp synchromax even though i had two bottles shipped from amazon because i'd been intentionally working on my shifting technique. plus i'm only sitting pretty on 17500 miles.
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09-30-2010, 11:32 AM	#13
a_riddler Bimmer Noob 30 Rep 566 Posts Drives: 08 Z4MC;08 MBZ E350 4Matic Join Date: May 2010 Location: Seattle, WA iTrader: (6)	And the verdict is.... Power steering pump It just happened after the fluid swap. Poor timing. I had noticed that the steering was rough, but attributed that to the increased negative camber from the TMS bolts. Lesson learned. Only do one thing at a time when the car is up on the jack stands... __________________ 08 Z4MC /// DKF Exhaust, Stoptech 6/4 BBK, TCK Coilovers, Strong-Strut, Apex EC-7's, APR Splitter/Wing, AFE Intake, Underdrive pulleys, AS SSK, Jaffster, UUC Tranny Mounts, Matte Grill, RPI Scoop, CF Badges
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09-30-2010, 12:09 PM	#14
007MCoupe Lieutenant Colonel 94 Rep 1,546 Posts Drives: '18 Sakhir M3 ZCP Join Date: Jun 2010 Location: ( ///// ) iTrader: (5)	Glad to hear it's not a tranny swap! __________________ Become a ///Member!
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09-30-2010, 12:40 PM	#15
inTgr8r Lieutenant General 2426 Rep 11,667 Posts Drives: M2 Comp Join Date: Mar 2006 Location: Toronto iTrader: (10)	Sorry about your PS pump, but the rest is good news. __________________ '21 M2C Hockenheim Silver '18 718 Cayman S Lava Orange (sold) '13 E92 M3 Santorini Blue (sold) '07 Z4 M Coupe Alpine White (sold)
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10-01-2010, 12:11 AM	#16
Erhan Colonel 87 Rep 2,464 Posts Drives: Cooper S Join Date: Oct 2008 Location: Seattle iTrader: (0)	You should have left it as is since it is not the tranny It was sounding really good
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