Built trans metallic sound?

[Jpbrienp]

Any one have any idea what would cause this noise?

http://youtu.be/OhDe_KVjjEM

 

[dmaxbowtie]

Really short video tough to tell, I had a sound that changed with rpm which I thought was a cracked flex plate but it was torque converter bolts that backed out from the holes in the flex plate being oval.

 

[Jpbrienp]

Really short video tough to tell, I had a sound that changed with rpm which I thought was a cracked flex plate but it was torque converter bolts that backed out from the holes in the flex plate being oval.

I'll try to upload a longer video.

 

[Jpbrienp]

This is the whole clip.
http://youtu.be/nHVWjv6iO_0

 

[Mike L.]

Sounds like a broken flex plate.

 

[Jpbrienp]

Sounds like a broken flex plate.

It only does it when it's cold and sitting at idle. Still leaning towards flex plate? I'm at a loss.

 

[Evan@InglewoodTrans]

So it goes away when warm even at idle in park?

 

[Jpbrienp]

Correct. It does make a whining noise while driving.

 

[Mike L.]

Any more news?

 

[Jpbrienp]

Went back to the shop. Shop said that the noise was caused from the fluid being low. This is a really good friends truck. I've spent more time working on his truck than my own. I'm having a hard time believing this sound was caused by low fluid.

 

[Mike L.]

I just listened to the sound byte again. No way is that air in the system or low fluid.

 

[sickdiesel]

That sounds pretty similar to what mine sounded like when my old converter let go. i thought it was flexplate at first also but turned out to be the converter. not saying that is 100% your problem but just my past experience

 

[Jpbrienp]

Well the shop is done with the truck said the only thing that was wrong was low fluid. We won't make it down to pick it up till Sunday so Sunday afternoon we will play with it some and see if everything is alright.

 

[redrob]

Check those 6 flexplate to torque converter bolts.

 

[Kappa9012]

low fluid??? doesn't sound like they know their ass from a hole in the ground.

 

[Jpbrienp]

Well we drove the truck the 3+ hours back yesterday afternoon. No noise when we picked it up. The truck was shifting extremely hard into 4th gear. I guess he's going to try romping on it a bit and see if she holds together. The shop won't look any further into the problem, they are sure that it was just low fluid.

 

[dmaxbowtie]

You should have asked them what they think was actually making the sound.

 

[Jpbrienp]

We did. I was told that air makes funny noises passing through a pump spinning at 600rpm.

 

[Josh2002cc]

low fluid??? doesn't sound like they know their ass from a hole in the ground.

Low fluid, lol :thumb:

 

[Mike L.]

Well we drove the truck the 3+ hours back yesterday afternoon. No noise when we picked it up. The truck was shifting extremely hard into 4th gear. I guess he's going to try romping on it a bit and see if she holds together. The shop won't look any further into the problem, they are sure that it was just low fluid.

I would not be romping on a hard 3/4 shift. That indicates a tie up. Do a lot of stop and go driving easy and get more aggressive as the shifts get better.