Whining noise from transmission (4R70W) or rear end gears?

isjoining

New Member

Mar 28, 2007

143

0

0

Orlando, FL

Apr 11, 2008

#1

• Apr 11, 2008

• #1

Whining noise from transmission (4R70W) or rear end

I have a whining noise in 1st and 2nd gear when accelerating from a stop or slow roll and it stops when it reaches 20mph and switches to 3rd or 4th (OD). I believe its coming from the transmission but could it come from the rear gears also? The gears are the stock 3.27 so I doubt it's that. No whining noise in park or neutral. Any ideas?

 

CobraRed_96_GT

Active Member

May 20, 2006

1,421

4

39

UCSD/La Jolla

Apr 11, 2008

#2

• Apr 11, 2008

• #2

that's odd, doesn't have to be the gears - could just be the trac-lock/bearings which often people complain about whining from in the 80-100k range

 

isjoining

New Member

Mar 28, 2007

143

0

0

Orlando, FL

Apr 11, 2008

#3

• Apr 11, 2008

• #3

hmm could be, but my car only has 57k miles, then again it's 8 years old.

 

S

steve_stang2003

New Member

Apr 18, 2007

195

1

0

Apr 11, 2008

#4

• Apr 11, 2008

• #4

isjoining said:

I have a whining noise in 1st and 2nd gear when accelerating from a stop or slow roll and it stops when it reaches 20mph and switches to 3rd or 4th (OD). I believe its coming from the transmission but could it come from the rear gears also? The gears are the stock 3.27 so I doubt it's that. No whining noise in park or neutral. Any ideas?

Click to expand...

My 2003 GT auto whines in first gear only when accelerating.
It's always done it.

It kind of sounds like the sound effects in the Star Trek series on TV.

It only does it in first and my sisters Crown Vic with 100,000+ miles on it does the same thing and always has.

 

isjoining

New Member

Mar 28, 2007

143

0

0

Orlando, FL

Apr 11, 2008

#5

• Apr 11, 2008

• #5

well did some further "testing" and it only makes the whine in first from a stop and slow roll, it will make the whine in 2nd but only when its around 18-20mph. So im guessing its normal for the 4r70w to make the whine in 1st? Was yours loud?

 

T

TGJ

New Member

Mar 30, 2005

1,049

4

0

Apr 11, 2008

#6

• Apr 11, 2008

• #6

Without actually hearing it, my guess would be the valve body in the transmission. I don't want to say it is normal but it won't hurt anything. It is kind of a common thing. One of my 4R70W's valve bodies does whine, I would take a video of it but that valve body is not in the car.

 

S

showtime01

New Member

Jul 14, 2007

5

0

1

Raleigh, NC

Apr 13, 2008

#7

• Apr 13, 2008

• #7

I have an 01 gt, makes the same noise between 1st and second gear in low revolutions... though mine sounds more like a grinding noise, however i talked to a mechanic about it when i had my transmission redone and he said it was normal and the sound was due to the synchronizers. btw this was a mechanic from crossroads ford... so i guess he knew what he was talking about..

 

isjoining

New Member

Mar 28, 2007

143

0

0

Orlando, FL

Aug 25, 2008

#8

• Aug 25, 2008

• #8

going to revive this thread. Didn't have much time to take it to someone to look at it, so I still don't know whats wrong with it as its still making the whining noise.

Here is a video I took, the whining noise is louder in person, but you should be able to hear it in the video.

YouTube - weird noise

any suggestions?

 

CobraRed_96_GT

Active Member

May 20, 2006

1,421

4

39

UCSD/La Jolla

Aug 25, 2008

#9

• Aug 25, 2008

• #9

Hmm, that kinda sounds like a straight cut gear in like a conservative racing dog-box transmission. I can't really tell where it's coming from but that could be rear end whine - I've never heard it so i wouldn't know. Maybe it's time to replace the tranny fluid with some Mercon V and a transmission cooler up front will save you a rebuild in the future.

 

DAKDOG99

New Member

May 29, 2006

37

0

0

COLUMBIA, S.C.

Aug 25, 2008

#10

• Aug 25, 2008

• #10

Mine does the same thing. I have a p&a valvebody and a stall converter. It got loader when I change from the stock valvebody.

 

isjoining

New Member

Mar 28, 2007

143

0

0

Orlando, FL

Aug 25, 2008

#11

• Aug 25, 2008

• #11

and it gets really loud if I sort of "gun it" while turning.

in any case, im just going to pay up and have it looked at.

 

MaxedGT

Member

Mar 31, 2005

304

0

17

Surrey BC Canada

Aug 25, 2008

#12

• Aug 25, 2008

• #12

I'd say it's normal. Mine does the same thing in first and reverse.

 

J

Jmanbigd

New Member

Sep 25, 2007

28

0

0

Aug 26, 2008

#13

• Aug 26, 2008

• #13

its ur pulleys i have a whining also mines loud enough to here over my flowmasters sounds like a turbo spooling some people say it comes from the power steering which in fords tends to whine but i found it was my pulleys that were making the noise.

 

isjoining

New Member

Mar 28, 2007

143

0

0

Orlando, FL

Aug 26, 2008

#14

• Aug 26, 2008

• #14

Jmanbigd said:

its ur pulleys i have a whining also mines loud enough to here over my flowmasters sounds like a turbo spooling some people say it comes from the power steering which in fords tends to whine but i found it was my pulleys that were making the noise.

Click to expand...

then wouldn't it make the noise when the car is in neutral or Park?

It only makes noise when the car is in gear and accelerating.

 

CobraRed_96_GT

Active Member

May 20, 2006

1,421

4

39

UCSD/La Jolla

Aug 26, 2008

#15

• Aug 26, 2008

• #15

Yeah, gear whine as well should make noise of throttle when the tranny automatically shifts into neutral.

 

Newtire

New Member

Jul 8, 2014

1

0

1

Jul 8, 2014

#16

• Jul 8, 2014

• #16

These are the planetary gears whining, there are no synchros in this trans. Auto's use clutches, bands and one-way clutches to control a planetary gearset. Must be something to do with the way they cut these gears. When you go into 3rd, the planetary gears stop spinning in relation to each other and turn as a solid mass more or less. In Overdrive (4th) they turn again but the pinions are now walking around a stationary gear and the little sungear that was driving away in 1st and 2nd (as well as 3rd but in direct drive then so whining effect would not be there) gets driven and is not under a load. Gotta be the planetaries in the transmission. Taught trannies for 31 years and these for the last 10.