Can the TH700R4 Governor make a rattling noise?
07-02-2017, 10:48 AM
#1
Can the TH700R4 Governor make a rattling noise?
This is a continuation of a "ball bearings in a tin can" noise I have been getting for a few months now. After a lot of specific conditional tests, I have narrowed it down to a very specific set that point towards the transmission.
1. Never makes noise in Park or Neutral
2. The noise exists ONLY between 600-700 RPM. (550 RPM idle in drive, it goes away. Above 700 RPM it goes away until the RPM falls back down.)
The car generally runs fine. I completely flushed the trans and replaced the filter. I used Mobil 1 ATF. I also did the Corvette Servo.
I did not take notes, but the noise could have first appeared shortly after I did the ATF change. When I first got the car, it did not make this noise.
1. Never makes noise in Park or Neutral
2. The noise exists ONLY between 600-700 RPM. (550 RPM idle in drive, it goes away. Above 700 RPM it goes away until the RPM falls back down.)
The car generally runs fine. I completely flushed the trans and replaced the filter. I used Mobil 1 ATF. I also did the Corvette Servo.
I did not take notes, but the noise could have first appeared shortly after I did the ATF change. When I first got the car, it did not make this noise.
07-04-2017, 02:21 PM
#2
Junior Member
Re: Can the TH700R4 Governor make a rattling noise?
I have exactly the same thing! When putting the auto into 3rd or 2nd it's even getting louder. It's less annoying in D but you can still hear it while driving slow. It sounds like a noisy shifter on a bicycle where the chain is constantly scratching through gears.
Maybe someone can give us a hint. My Auto is shifting good and firm but just makes this annoying noise.
Maybe someone can give us a hint. My Auto is shifting good and firm but just makes this annoying noise.
07-04-2017, 06:36 PM
#3
Senior Member
Join Date: Sep 2014
Location: Los Angeles
Posts: 731
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Car: 92 Z28
Engine: Ramjet 350
Transmission: T-56
Axle/Gears: 3.23 Torsen
Re: Can the TH700R4 Governor make a rattling noise?
I have the same noise and it appeared after my oil and filter change as well
07-05-2017, 01:11 AM
#4
Re: Can the TH700R4 Governor make a rattling noise?
This is good. Let's stick together and see if we can't figure this out.
I will be diving down to inspect the flex plate and bolts in the next couple weeks (sorry busy right now) I will report back.
I will be diving down to inspect the flex plate and bolts in the next couple weeks (sorry busy right now) I will report back.
08-02-2020, 07:14 AM
#6
Re: Can the TH700R4 Governor make a rattling noise?
This is a continuation of a "ball bearings in a tin can" noise I have been getting for a few months now. After a lot of specific conditional tests, I have narrowed it down to a very specific set that point towards the transmission.
1. Never makes noise in Park or Neutral
2. The noise exists ONLY between 600-700 RPM. (550 RPM idle in drive, it goes away. Above 700 RPM it goes away until the RPM falls back down.)
The car generally runs fine. I completely flushed the trans and replaced the filter. I used Mobil 1 ATF. I also did the Corvette Servo.
I did not take notes, but the noise could have first appeared shortly after I did the ATF change. When I first got the car, it did not make this noise.
1. Never makes noise in Park or Neutral
2. The noise exists ONLY between 600-700 RPM. (550 RPM idle in drive, it goes away. Above 700 RPM it goes away until the RPM falls back down.)
The car generally runs fine. I completely flushed the trans and replaced the filter. I used Mobil 1 ATF. I also did the Corvette Servo.
I did not take notes, but the noise could have first appeared shortly after I did the ATF change. When I first got the car, it did not make this noise.