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Noise

krh

Active member
Joined
Oct 16, 2005
Messages
33
Location
NC
Corvette
2005 victory red vert
Noises are hard to describe, but what might one hear from a turbo 350 Trans with a troque coverter going bad?
can a screen being stopped up make noise?

I am gettinga whining noise when accelerating the noise stops at idle.

krh
 

bill81vette

Moderator
Joined
Jan 17, 2004
Messages
4,321
Location
Troy,NY
Corvette
1981 dark blue metallic
Could be a belt is slipping,my buddy's torque converter went bad on his drag car one time and sounded like this horrific noise one cannot describe,but it definitely wasn't whining..
 

krh

Active member
Joined
Oct 16, 2005
Messages
33
Location
NC
Corvette
2005 victory red vert
the screen in transmission. the auto zone guy said it sounds like the torque converter going bad, because it only does it when you rev the engine. the sound is a whining noise. The car is not even moving setting in park.
krh
 

zachh

Well-known member
Joined
Aug 1, 2005
Messages
221
Location
virginia beach, va
Corvette
1979 black 'n' silver L82 1978 Trans Am Y88
A torque converter has alot of belts and small "clutches" per say. They rely on those belts moving to let fluid move in/ around the converter. At the stall rpm, ex a 2500 stall is when there is no slippage and the engine crank and trans input shaft is spinning at the same exact speed. So basically, every converter is a "lock up converter", but a true lock up converter locks up in overdrive at ANY rpm. Like Bill81 said, A slipping belt could cause this sound, but if it was real bad, which if you keep driving, and this is your proble, it will get louder. The only screen I can think of would be the trans fluid filter. And, if thats clogged, or your fluid is very old, the torque converter either isn't getting enough fluid, or the fluid is to thin to work properly. This will cause damage to both the converter, and the trans itself. Also, are you sure its coming from the trans, not the rear end? If this question is about your 94, everything I just said, for the most part should be thrown out the window because im talkin about a 350 or 700r4, not a 4L80E like your 94 has. So, what kind of trans is making the sound?
Best Wishes
zachh
 

krh

Active member
Joined
Oct 16, 2005
Messages
33
Location
NC
Corvette
2005 victory red vert
zachh.this is not my 94. it is a1979 coupe. with a th350 with a shift kit in it.the noise starts after the motor warms up but not at idle. it comes on at 3000rpms. whinning louder as it accelerrates. on the road same thing. if i rev it up when it is first cranked cold nothing then as it gets warm it starts.

krh
 

bill81vette

Moderator
Joined
Jan 17, 2004
Messages
4,321
Location
Troy,NY
Corvette
1981 dark blue metallic
the noise starts after the motor warms up but not at idle. it comes on at 3000rpms. whinning louder as it accelerrates. on the road same thing. if i rev it up when it is first cranked cold nothing then as it gets warm it starts.

krh

now were getting somewhere!!!!
so the noise starts at 3000rpms?????
and after it warms up,and not when the engine is cold???
what else is it doing????
and when????
 

krh

Active member
Joined
Oct 16, 2005
Messages
33
Location
NC
Corvette
2005 victory red vert
my mechanic came back early from his vacation. he came over yesterday and he checked it out he thinks it is distributor shaft.it goes to his shop monday for a complete check.thanks for all the help. iwill let you know the findings. krh
 

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