Development of a whooshing noise.

[blackazz]

Need a little help here. I was at the track going to do a burn out.I staged my car then notice a whooshing sound coming from the trans area/tc. It only happens when I'm power breaking to build boost. Between rpm 1500-2500 range.trans still working. Tc is a ptc 10" 2800 lock up.But did notice now I can hold boost alot more then before an not do much of a launch.
An things I checked.
Hoses.
Inercooler.
Eghaust leak.
An its not the turbo sneeze, turbo whoosh sound.

 

[626gn]

Sounds familiar. Read this http://www.turbobuick.com/forums/threads/i-think-my-converter-went-bad.401712/

 

[blackazz]

Thanks. Guess I call Dusty in the morning.

 

[626gn]

Hope it helped.

 

[blackazz]

Anyone else?

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[blackazz]

Problem is back,now you can here it at idle in gear ill post a video tomorrow

 

[blackazz]

I know I have a rear main leak.

 

[blackazz]

Ok,so in park an neutral it doesn't make any noise.the minute I shifted in to Reverse or drive the noise starts.once the noise starts it cannot be heard while driving.almost like a friction sound.clutch paks rubbing.

 

[John Larkin]

I am NOT a trans expert or even close. I have heard transmissions sound fine in park and then whine in gear. It usually points to the pump. Luckily that is not terribly invasive but the trans has to come out I am pretty sure.

 

[blackazz]

I am NOT a trans expert or even close. I have heard transmissions sound fine in park and then whine in gear. It usually points to the pump. Luckily that is not terribly invasive but the trans has to come out I am pretty sure.

Thanks for the reply.im feeling the same. Pump failure! Trans still pulls hard, shifts well.only makes noise when in gear at low idle.

 

[John Larkin]

Do you have an external cooler? Might be time for one. A stacked plate one is good, I mounted mine behind the bumper horizontally under the right headlight and looped it into the radiator lines. Pretty easy but some bracketry must be crafted.

 

[blackazz]

I do have an external cooler.1st in line to get that cool air.this problem poked its head out 7years ago, it would only do it when I was staging or power braking.from what I've read this sounds like a pump problem.